Company lists · Data refreshed September 2026
Top 25 Internal medicine practices based in the United States
RevenueBase identified 3,469 company matches for internal medicine practices associated with the United States as of September 2026 and tracks 49,060 professional contacts across them, including 10,788 with verified work emails. New York is the largest hub.
This list covers company matches for internal medicine practices associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest internal medicine practices based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,441 contacts → | ||||
Exact match “Lahey Hospital & Medical Center, part of Beth Israel Lahey Health, is a physician-led, nonprofit, group practice.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 3,258 contacts → | ||||
Exact match “The Permanente Medical Group (TPMG) is the largest physician-led medical group in the United States.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 1,906 contacts → | ||||
Exact match “Atrius Health, an innovative healthcare leader, delivers an effective system of connected care for adult and pediatric patients at 30 medical practice locations in eastern…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 1,438 contacts → | ||||
Exact match “Are you ready to challenge the expected to deliver the extraordinary?” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 1,339 contacts → | ||||
Exact match “Established in 1994, Trinity Health IHA Medical Group is one of the largest multi-specialty medical groups in Michigan delivering more than one million patient visits each year…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 932 contacts → | ||||
Exact match “Hattiesburg Clinic’s mission as a group practice is to provide high quality, patient-centered health care in an efficient and cost-effective manner.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 840 contacts → | ||||
Exact match “Regal Medical Group, Lakeside Community Healthcare, ADOC Medical Group, and Community Surgery Center of Glendale – part of the Heritage Provider Network – is recognized as one of…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 771 contacts → | ||||
Exact match “We’re redefining & transforming the approach to health, the business of health, & the overall well-being of the community.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 546 contacts → | ||||
Exact match “A large private multi-specialty physician group in the city of Toledo.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 455 contacts → | ||||
Exact match “InterMed is the largest physician-owned primary care practice in Maine, with 90 physicians and more than 650 non-physician employees.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 406 contacts → | ||||
Exact match “RWJBarnabas Health Medical Group is a multi-specialty group practice comprised of highly trained and experienced world class primary and specialty care physicians.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 386 contacts → | ||||
Exact match “At Buffalo Medical Group, we offer care that goes beyond simply treating you when you’re sick.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 349 contacts → | ||||
Exact match “The Villages Health (soon becoming CenterWell Senior Primary Care) offers a revolutionary style of care that puts the patient at the center of their own well being!” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 335 contacts → | ||||
Exact match “Visit our main page: Duke University Health System” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 318 contacts → | ||||
Exact match “Our goal at Loudoun Medical Group (LMG) is to provide every single patient with top-quality medical care and personalized service.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 312 contacts → | ||||
Exact match “Longstreet Clinic is a leading-edge, private medical group located in north Georgia.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 276 contacts → | ||||
Exact match “At Bethany Medical, Your Health is Our Concern!” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 256 contacts → | ||||
Exact match “A member of the Lifespan health system, Coastal Medical is a primary care driven practice serving over patients with a team of 150 clinicians located in medical offices across…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 242 contacts → | ||||
Exact match “Arizona Community Physicians is the largest physician owned medical practice in the state of Arizona, with 130 physicians and a total of 35 Physician Assistants and Nurse…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 235 contacts → | ||||
Exact match “Texas MedClinic Urgent Care is now CareNow Urgent Care/HCA Healthcare.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 230 contacts → | ||||
Exact match “Founded in the 1990’s, Epic Care started as a group of board certified hematologists and oncologists based in Northern California’s East Bay area.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 227 contacts → | ||||
Exact match “Specialist focused Multi-Specialist Internal Medicine Group located in Cheyenne, WY.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 223 contacts → | ||||
Exact match “IMS Care Center is a physician-led organization united through its providers’ commitment to high-quality, innovative health care.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 218 contacts → | ||||
Exact match “Galen Medical Group was founded in October 1992, as a multispecialty medical group to meet the goals set forth in its Mission Statement.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 209 contacts → | ||||
Exact match “We provide patients with in-depth and compassionate care to treat the whole you in the fields of urology, gynecology, gastroenterology, rheumatology, cardiology, dermatology…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “internal medicine practices”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 3,469 internal medicine practices based in the United States
See the full list, filter by size, metro and specialty, and access 10,788 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Internal medicine practices based in the United States at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,469 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United States whose business descriptions match “internal medicine practices” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 10,788 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Internal medicine practices by metro
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “internal medicine practices”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many internal medicine practices are there based in the United States?
RevenueBase identified 3,469 company matches for internal medicine practices associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Lahey Hospital & Medical Center tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most internal medicine practices?
New York leads with 92 company records, followed by Houston (51) and Miami (31).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 10,788 professional contacts with verified work emails tracked across these 3,469 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 3,469 internal medicine practices based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Internal medicine practices by geography
- Internal medicine practices based in Houston, United States
- Internal medicine practices based in New York, United States
- Internal medicine practices based in Australia
- Internal medicine practices based in Belgium
- Internal medicine practices based in Canada
- Internal medicine practices based in the Netherlands
- Internal medicine practices based in New Zealand
- Internal medicine practices based in Switzerland
- Internal medicine practices based in the United Kingdom
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Internal medicine practices based in Houston, United States
- Internal medicine practices based in New York, United States
- Internal medicine practices based in Australia
- Internal medicine practices based in Belgium
- Internal medicine practices based in Canada
- Internal medicine practices based in the Netherlands
Company intelligence · public preview
Top 25 internal medicine practices based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 3,469 matching company records for internal medicine practices based in the United States, with 49,060 tracked contacts and 10,788 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 internal medicine practices based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Lahey Hospital & Medical Centerlahey.org HQ: Burlington, MA, United StatesReported employees: 5,001-10,000 | Burlington, MA, United States | 5,001-10,000 | Exact match | 4,441 contacts → |
“Lahey Hospital & Medical Center, part of Beth Israel Lahey Health, is a physician-led, nonprofit, group practice.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | The Permanente Medical Group, INCnortherncalifornia.permanente.org HQ: Pleasanton, CA, United StatesReported employees: 10001+ | Pleasanton, CA, United States | 10001+ | Exact match | 3,258 contacts → |
“The Permanente Medical Group (TPMG) is the largest physician-led medical group in the United States.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Atrius Healthatriushealth.orgHQ: Newton, MA, United StatesReported employees: 5,001-10,000 | Newton, MA, United States | 5,001-10,000 | Exact match | 1,906 contacts → |
“Atrius Health, an innovative healthcare leader, delivers an effective system of connected care for adult and pediatric patients at 30 medical practice locations in eastern…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Dupage Medical Groupdulyhealthandcare.com HQ: Downers Grove, IL, United StatesReported employees: 1,001-5,000 | Downers Grove, IL, United States | 1,001-5,000 | Exact match | 1,438 contacts → |
“Are you ready to challenge the expected to deliver the extraordinary?” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | IHAihacares.com HQ: Ann Arbor, MI, United StatesReported employees: 1,001-5,000 | Ann Arbor, MI, United States | 1,001-5,000 | Exact match | 1,339 contacts → |
“Established in 1994, Trinity Health IHA Medical Group is one of the largest multi-specialty medical groups in Michigan delivering more than one million patient visits each year…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Hattiesburg Clinic, PAhattiesburgclinic.com HQ: Hattiesburg, MS, United StatesReported employees: 1,001-5,000 | Hattiesburg, MS, United States | 1,001-5,000 | Exact match | 932 contacts → |
“Hattiesburg Clinic’s mission as a group practice is to provide high quality, patient-centered health care in an efficient and cost-effective manner.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Regal Medical Groupregalmed.comHQ: Los Angeles, CA, United StatesReported employees: 1,001-5,000 | Los Angeles, CA, United States | 1,001-5,000 | Exact match | 840 contacts → |
“Regal Medical Group, Lakeside Community Healthcare, ADOC Medical Group, and Community Surgery Center of Glendale – part of the Heritage Provider Network – is recognized as one of…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Crystal RUN Healthcrystalrunhealthcare.com HQ: Middletown, NY, United StatesReported employees: 1,001-5,000 | Middletown, NY, United States | 1,001-5,000 | Exact match | 771 contacts → |
“We’re redefining & transforming the approach to health, the business of health, & the overall well-being of the community.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | The Toledo Clinictoledoclinic.com HQ: Toledo, OH, United StatesReported employees: 1,001-5,000 | Toledo, OH, United States | 1,001-5,000 | Exact match | 546 contacts → |
“A large private multi-specialty physician group in the city of Toledo.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Intermed, P.Aintermed.com HQ: Portland, ME, United StatesReported employees: 501-1,000 | Portland, ME, United States | 501-1,000 | Exact match | 455 contacts → |
“InterMed is the largest physician-owned primary care practice in Maine, with 90 physicians and more than 650 non-physician employees.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Rwjbarnabas Health Medical Grouprwjbh.org HQ: West Orange, NJ, United StatesReported employees: 501-1,000 | West Orange, NJ, United States | 501-1,000 | Exact match | 406 contacts → |
“RWJBarnabas Health Medical Group is a multi-specialty group practice comprised of highly trained and experienced world class primary and specialty care physicians.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Buffalo Medical Groupbuffalomedicalgroup.comHQ: Buffalo, NY, United StatesReported employees: 501-1,000 | Buffalo, NY, United States | 501-1,000 | Exact match | 386 contacts → |
“At Buffalo Medical Group, we offer care that goes beyond simply treating you when you’re sick.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | The Villages Healththevillageshealth.com HQ: The Villages, FL, United StatesReported employees: 501-1,000 | The Villages, FL, United States | 501-1,000 | Exact match | 349 contacts → |
“The Villages Health (soon becoming CenterWell Senior Primary Care) offers a revolutionary style of care that puts the patient at the center of their own well being!” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Duke Healthdukehealth.org HQ: Durham, NC, United StatesReported employees: 10001+ | Durham, NC, United States | 10001+ | Exact match | 335 contacts → |
“Visit our main page: Duke University Health System” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Loudoun Medical Group, P.Clmgdoctors.com HQ: Leesburg, VA, United StatesReported employees: 1,001-5,000 | Leesburg, VA, United States | 1,001-5,000 | Exact match | 318 contacts → |
“Our goal at Loudoun Medical Group (LMG) is to provide every single patient with top-quality medical care and personalized service.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Longstreet Cliniclongstreetclinic.com HQ: Gainesville, GA, United StatesReported employees: 501-1,000 | Gainesville, GA, United States | 501-1,000 | Exact match | 312 contacts → |
“Longstreet Clinic is a leading-edge, private medical group located in north Georgia.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Bethany Medicalmybethanymedical.com HQ: High Point, NC, United StatesReported employees: 201-500 | High Point, NC, United States | 201-500 | Exact match | 276 contacts → |
“At Bethany Medical, Your Health is Our Concern!” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Coastal Medicalcoastalmedical.com HQ: Providence, RI, United StatesReported employees: 501-1,000 | Providence, RI, United States | 501-1,000 | Exact match | 256 contacts → |
“A member of the Lifespan health system, Coastal Medical is a primary care driven practice serving over patients with a team of 150 clinicians located in medical offices across…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Arizona Community Physiciansazacp.com HQ: Tucson, AZ, United StatesReported employees: 501-1,000 | Tucson, AZ, United States | 501-1,000 | Exact match | 242 contacts → |
“Arizona Community Physicians is the largest physician owned medical practice in the state of Arizona, with 130 physicians and a total of 35 Physician Assistants and Nurse…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Texas Medcliniccarenow.comHQ: San Antonio, TX, United StatesReported employees: 201-500 | San Antonio, TX, United States | 201-500 | Exact match | 235 contacts → |
“Texas MedClinic Urgent Care is now CareNow Urgent Care/HCA Healthcare.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Epic Careepic-care.com HQ: Antioch, CA, United StatesReported employees: 201-500 | Antioch, CA, United States | 201-500 | Exact match | 230 contacts → |
“Founded in the 1990’s, Epic Care started as a group of board certified hematologists and oncologists based in Northern California’s East Bay area.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Internal Medicine Groupimgwy.com HQ: Cheyenne, WY, United StatesReported employees: 51-200 | Cheyenne, WY, United States | 51-200 | Exact match | 227 contacts → |
“Specialist focused Multi-Specialist Internal Medicine Group located in Cheyenne, WY.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Integrated Medical Services IMSimsaz.com HQ: Phoenix, AZ, United StatesReported employees: 501-1,000 | Phoenix, AZ, United States | 501-1,000 | Exact match | 223 contacts → |
“IMS Care Center is a physician-led organization united through its providers’ commitment to high-quality, innovative health care.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Galen Medical Groupgalenmedical.com HQ: Hixson, TN, United StatesReported employees: 501-1,000 | Hixson, TN, United States | 501-1,000 | Exact match | 218 contacts → |
“Galen Medical Group was founded in October 1992, as a multispecialty medical group to meet the goals set forth in its Mission Statement.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Premier Medical Group Of The Hudson Valleypremiermedicalhv.com HQ: Poughkeepsie, NY, United StatesReported employees: 501-1,000 | Poughkeepsie, NY, United States | 501-1,000 | Exact match | 209 contacts → |
“We provide patients with in-depth and compassionate care to treat the whole you in the fields of urology, gynecology, gastroenterology, rheumatology, cardiology, dermatology…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,469 company matches
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Internal medicine practices: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
3,431 records in the displayed employee bands.
38 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,469 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Internal medicine practices by metro
Questions about this company list
What does Exact match mean for internal medicine practices?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many internal medicine practices did RevenueBase find based in the United States?
The saved snapshot records 3,469 matching company records, 49,060 tracked contacts and 10,788 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Internal medicine practices by geography
- Internal medicine practices based in Houston, United States
- Internal medicine practices based in New York, United States
- Internal medicine practices based in Australia
- Internal medicine practices based in Belgium
- Internal medicine practices based in Canada
- Internal medicine practices based in the Netherlands
- Internal medicine practices based in New Zealand
- Internal medicine practices based in Switzerland
- Internal medicine practices based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 internal medicine practices based in the United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/internal-medicine-practices/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Internal medicine practices based in Houston, United States
- Internal medicine practices based in New York, United States
- Internal medicine practices based in Australia
- Internal medicine practices based in Belgium
- Internal medicine practices based in Canada
- Internal medicine practices based in the Netherlands
Company intelligence · public preview
Top 25 internal medicine practices based in the United States
RevenueBase records 3,469 matching company records for internal medicine practices based in the United States, with 49,060 tracked contacts and 10,788 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 internal medicine practices based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Lahey Hospital & Medical Centerlahey.org HQ: Burlington, MA, United StatesReported employees: 5,001-10,000 | Burlington, MA, United States | 5,001-10,000 | Exact match | 4,441 contacts → |
“Lahey Hospital & Medical Center, part of Beth Israel Lahey Health, is a physician-led, nonprofit, group practice.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | The Permanente Medical Group, INCnortherncalifornia.permanente.org HQ: Pleasanton, CA, United StatesReported employees: 10001+ | Pleasanton, CA, United States | 10001+ | Exact match | 3,258 contacts → |
“The Permanente Medical Group (TPMG) is the largest physician-led medical group in the United States.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Atrius Healthatriushealth.org HQ: Newton, MA, United StatesReported employees: 5,001-10,000 | Newton, MA, United States | 5,001-10,000 | Exact match | 1,906 contacts → |
“Atrius Health, an innovative healthcare leader, delivers an effective system of connected care for adult and pediatric patients at 30 medical practice locations in eastern…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Dupage Medical Groupdulyhealthandcare.com HQ: Downers Grove, IL, United StatesReported employees: 1,001-5,000 | Downers Grove, IL, United States | 1,001-5,000 | Exact match | 1,438 contacts → |
“Are you ready to challenge the expected to deliver the extraordinary?” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | IHAihacares.com HQ: Ann Arbor, MI, United StatesReported employees: 1,001-5,000 | Ann Arbor, MI, United States | 1,001-5,000 | Exact match | 1,339 contacts → |
“Established in 1994, Trinity Health IHA Medical Group is one of the largest multi-specialty medical groups in Michigan delivering more than one million patient visits each year…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Hattiesburg Clinic, PAhattiesburgclinic.com HQ: Hattiesburg, MS, United StatesReported employees: 1,001-5,000 | Hattiesburg, MS, United States | 1,001-5,000 | Exact match | 932 contacts → |
“Hattiesburg Clinic’s mission as a group practice is to provide high quality, patient-centered health care in an efficient and cost-effective manner.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Regal Medical Groupregalmed.com HQ: Los Angeles, CA, United StatesReported employees: 1,001-5,000 | Los Angeles, CA, United States | 1,001-5,000 | Exact match | 840 contacts → |
“Regal Medical Group, Lakeside Community Healthcare, ADOC Medical Group, and Community Surgery Center of Glendale – part of the Heritage Provider Network – is recognized as one of…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Crystal RUN Healthcrystalrunhealthcare.com HQ: Middletown, NY, United StatesReported employees: 1,001-5,000 | Middletown, NY, United States | 1,001-5,000 | Exact match | 771 contacts → |
“We’re redefining & transforming the approach to health, the business of health, & the overall well-being of the community.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | The Toledo Clinictoledoclinic.com HQ: Toledo, OH, United StatesReported employees: 1,001-5,000 | Toledo, OH, United States | 1,001-5,000 | Exact match | 546 contacts → |
“A large private multi-specialty physician group in the city of Toledo.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Intermed, P.Aintermed.com HQ: Portland, ME, United StatesReported employees: 501-1,000 | Portland, ME, United States | 501-1,000 | Exact match | 455 contacts → |
“InterMed is the largest physician-owned primary care practice in Maine, with 90 physicians and more than 650 non-physician employees.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Rwjbarnabas Health Medical Grouprwjbh.org HQ: West Orange, NJ, United StatesReported employees: 501-1,000 | West Orange, NJ, United States | 501-1,000 | Exact match | 406 contacts → |
“RWJBarnabas Health Medical Group is a multi-specialty group practice comprised of highly trained and experienced world class primary and specialty care physicians.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Buffalo Medical Groupbuffalomedicalgroup.com HQ: Buffalo, NY, United StatesReported employees: 501-1,000 | Buffalo, NY, United States | 501-1,000 | Exact match | 386 contacts → |
“At Buffalo Medical Group, we offer care that goes beyond simply treating you when you’re sick.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | The Villages Healththevillageshealth.com HQ: The Villages, FL, United StatesReported employees: 501-1,000 | The Villages, FL, United States | 501-1,000 | Exact match | 349 contacts → |
“The Villages Health (soon becoming CenterWell Senior Primary Care) offers a revolutionary style of care that puts the patient at the center of their own well being!” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Duke Healthdukehealth.org HQ: Durham, NC, United StatesReported employees: 10001+ | Durham, NC, United States | 10001+ | Exact match | 335 contacts → |
“Visit our main page: Duke University Health System” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Loudoun Medical Group, P.Clmgdoctors.com HQ: Leesburg, VA, United StatesReported employees: 1,001-5,000 | Leesburg, VA, United States | 1,001-5,000 | Exact match | 318 contacts → |
“Our goal at Loudoun Medical Group (LMG) is to provide every single patient with top-quality medical care and personalized service.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Longstreet Cliniclongstreetclinic.com HQ: Gainesville, GA, United StatesReported employees: 501-1,000 | Gainesville, GA, United States | 501-1,000 | Exact match | 312 contacts → |
“Longstreet Clinic is a leading-edge, private medical group located in north Georgia.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Bethany Medicalmybethanymedical.com HQ: High Point, NC, United StatesReported employees: 201-500 | High Point, NC, United States | 201-500 | Exact match | 276 contacts → |
“At Bethany Medical, Your Health is Our Concern!” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Coastal Medicalcoastalmedical.com HQ: Providence, RI, United StatesReported employees: 501-1,000 | Providence, RI, United States | 501-1,000 | Exact match | 256 contacts → |
“A member of the Lifespan health system, Coastal Medical is a primary care driven practice serving over patients with a team of 150 clinicians located in medical offices across…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Arizona Community Physiciansazacp.com HQ: Tucson, AZ, United StatesReported employees: 501-1,000 | Tucson, AZ, United States | 501-1,000 | Exact match | 242 contacts → |
“Arizona Community Physicians is the largest physician owned medical practice in the state of Arizona, with 130 physicians and a total of 35 Physician Assistants and Nurse…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Texas Medcliniccarenow.com HQ: San Antonio, TX, United StatesReported employees: 201-500 | San Antonio, TX, United States | 201-500 | Exact match | 235 contacts → |
“Texas MedClinic Urgent Care is now CareNow Urgent Care/HCA Healthcare.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Epic Careepic-care.com HQ: Antioch, CA, United StatesReported employees: 201-500 | Antioch, CA, United States | 201-500 | Exact match | 230 contacts → |
“Founded in the 1990’s, Epic Care started as a group of board certified hematologists and oncologists based in Northern California’s East Bay area.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Internal Medicine Groupimgwy.com HQ: Cheyenne, WY, United StatesReported employees: 51-200 | Cheyenne, WY, United States | 51-200 | Exact match | 227 contacts → |
“Specialist focused Multi-Specialist Internal Medicine Group located in Cheyenne, WY.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Integrated Medical Services IMSimsaz.com HQ: Phoenix, AZ, United StatesReported employees: 501-1,000 | Phoenix, AZ, United States | 501-1,000 | Exact match | 223 contacts → |
“IMS Care Center is a physician-led organization united through its providers’ commitment to high-quality, innovative health care.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Galen Medical Groupgalenmedical.com HQ: Hixson, TN, United StatesReported employees: 501-1,000 | Hixson, TN, United States | 501-1,000 | Exact match | 218 contacts → |
“Galen Medical Group was founded in October 1992, as a multispecialty medical group to meet the goals set forth in its Mission Statement.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Premier Medical Group Of The Hudson Valleypremiermedicalhv.com HQ: Poughkeepsie, NY, United StatesReported employees: 501-1,000 | Poughkeepsie, NY, United States | 501-1,000 | Exact match | 209 contacts → |
“We provide patients with in-depth and compassionate care to treat the whole you in the fields of urology, gynecology, gastroenterology, rheumatology, cardiology, dermatology…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Internal medicine practices: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
3,431 records in the displayed employee bands.
38 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,469 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Internal medicine practices by metro
Questions about this company list
What does Exact match mean for internal medicine practices?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many internal medicine practices did RevenueBase find based in the United States?
The saved snapshot records 3,469 matching company records, 49,060 tracked contacts and 10,788 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Internal medicine practices by geography
- Internal medicine practices based in Houston, United States
- Internal medicine practices based in New York, United States
- Internal medicine practices based in Australia
- Internal medicine practices based in Belgium
- Internal medicine practices based in Canada
- Internal medicine practices based in the Netherlands
- Internal medicine practices based in New Zealand
- Internal medicine practices based in Switzerland
- Internal medicine practices based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 internal medicine practices based in the United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/internal-medicine-practices/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Internal medicine practices based in Houston, United States
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- Internal medicine practices based in Australia
- Internal medicine practices based in Belgium
- Internal medicine practices based in Canada
- Internal medicine practices based in the Netherlands