Company lists · Data refreshed September 2026

Top 25 Private medical practices based in the United States

Name: Private medical practices based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 3,466 companies tracked

RevenueBase identified 3,466 private medical practices headquartered in the United States as of September 2026 and tracks 44,624 professional contacts across them, including 8,620 with verified work emails. New York is the largest hub.

This list covers private medical practices headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

3,466Companies

44,624Contacts tracked

8,620Verified emails

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The 25 largest private medical practices based in the United States

Ranked by team size

Top 25 of 3,466 private medical practices based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to private medical practices: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	IHA	Partial evidence	Ann Arbor, MI, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,339 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
2	Hattiesburg Clinic, PA	Partial evidence	Hattiesburg, MS, United StatesHQ checked Sep 17, 2026	1,001-5,000	932 contacts →
	Partial evidence “Hattiesburg Clinic’s mission as a group practice is to provide high quality, patient-centered health care in an efficient and cost-effective manner.” Source: RevenueBase Database · checked Sep 17, 2026
3	Regal Medical Group	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	840 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
4	Crystal RUN Health	Indirect evidence	Middletown, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	771 contacts →
	Indirect evidence “We’re redefining & transforming the approach to health, the business of health, & the overall well-being of the community.” Source: RevenueBase Database · checked Sep 17, 2026
5	The Toledo Clinic	Partial evidence	Toledo, OH, United StatesHQ checked Sep 17, 2026	1,001-5,000	546 contacts →
	Partial evidence “A large private multi-specialty physician group in the city of Toledo.” Source: RevenueBase Database · checked Sep 17, 2026
6	Sharp Rees-Stealy Medical Group	Partial evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	545 contacts →
	Partial evidence “As one of the largest, most comprehensive medical groups in San Diego County, our 16 locations offer services such as primary and specialty care, laboratory, physical therapy…” Source: RevenueBase Database · checked Sep 17, 2026
7	Medrite Urgent Care	Indirect evidence	New York, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	537 contacts →
	Indirect evidence “Welcome to our page!” Source: RevenueBase Database · checked Sep 17, 2026
8	Piedmont Healthcare	Indirect evidence	Statesville, NC, United StatesHQ checked Sep 17, 2026	1,001-5,000	495 contacts →
	Indirect evidence “Piedmont HealthCare is one of the largest physician-owned and directed, multi-specialty groups in North Carolina and the Southeast regions.” Source: RevenueBase Database · checked Sep 17, 2026
9	Intermed, P.A	Partial evidence	Portland, ME, United StatesHQ checked Sep 17, 2026	501-1,000	455 contacts →
	Partial evidence “InterMed is the largest physician-owned primary care practice in Maine, with 90 physicians and more than 650 non-physician employees.” Source: RevenueBase Database · checked Sep 17, 2026
10	Starling Physicians	Partial evidence	Rocky Hill, CT, United StatesHQ checked Sep 17, 2026	501-1,000	367 contacts →
	Partial evidence “Starling Physicians has over 300 providers who deliver care across 27 medical specialties in 30 convenient locations.” Source: RevenueBase Database · checked Sep 17, 2026
11	Duke Health	Indirect evidence	Durham, NC, United StatesHQ checked Sep 17, 2026	10001+	335 contacts →
	Indirect evidence “Visit our main page: Duke University Health System” Source: RevenueBase Database · checked Sep 17, 2026
12	Total Access Urgent Care	Indirect evidence	St. Louis, MO, United StatesHQ checked Sep 17, 2026	201-500	330 contacts →
	Indirect evidence “Total Access Urgent Care (TAUC) has been proudly providing top-ranked patient care for St.” Source: RevenueBase Database · checked Sep 17, 2026
13	Loudoun Medical Group, P.C	Partial evidence	Leesburg, VA, United StatesHQ checked Sep 17, 2026	1,001-5,000	318 contacts →
	Partial evidence “Our goal at Loudoun Medical Group (LMG) is to provide every single patient with top-quality medical care and personalized service.” Source: RevenueBase Database · checked Sep 17, 2026
14	Longstreet Clinic	Strong evidence	Gainesville, GA, United StatesHQ checked Sep 17, 2026	501-1,000	312 contacts →
	Strong evidence “Longstreet Clinic is a leading-edge, private medical group located in north Georgia.” Source: RevenueBase Database · checked Sep 17, 2026
15	The Jackson Clinic	Strong evidence	Jackson, TN, United StatesHQ checked Sep 17, 2026	201-500	280 contacts →
	Strong evidence “Established in 1950 by five medical and surgical specialists, The Jackson Clinic was the first multi-specialty group practice in Tennessee.” Source: RevenueBase Database · checked Sep 17, 2026
16	Bethany Medical	Partial evidence	High Point, NC, United StatesHQ checked Sep 17, 2026	201-500	276 contacts →
	Partial evidence “At Bethany Medical, Your Health is Our Concern!” Source: RevenueBase Database · checked Sep 17, 2026
17	Midwest Express Clinic	Indirect evidence	Willowbrook, IL, United StatesHQ checked Sep 17, 2026	201-500	272 contacts →
	Indirect evidence “We believe the most important things in life should be done with heart.” Source: RevenueBase Database · checked Sep 17, 2026
18	Tryon Medical Partners	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 17, 2026	201-500	270 contacts →
	Partial evidence “As an independent practice, the difference is personal.” Source: RevenueBase Database · checked Sep 17, 2026
19	Providence Medical Group, Dayton, OH	Partial evidence	Dayton, OH, United StatesHQ checked Sep 17, 2026	51-200	261 contacts →
	Partial evidence “Welcome to Providence Medical Group, Dayton, Ohio “Where nothing comes between you and your doctor.” At Providence Medical Group, that simple statement is our founding principle…” Source: RevenueBase Database · checked Sep 17, 2026
20	Arizona Community Physicians	Strong evidence	Tucson, AZ, United StatesHQ checked Sep 17, 2026	501-1,000	242 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
21	Spectrum Healthcare Partners	Partial evidence	South Portland, ME, United StatesHQ checked Sep 17, 2026	501-1,000	238 contacts →
	Partial evidence “Serving Northern New England, Spectrum Healthcare Partners is an independent, multi-specialty, physician owned healthcare practice delivering best practice diagnostics and…” Source: RevenueBase Database · checked Sep 17, 2026
22	Texas Medclinic	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 17, 2026	201-500	235 contacts →
	Indirect evidence “Texas MedClinic Urgent Care is now CareNow Urgent Care/HCA Healthcare.” Source: RevenueBase Database · checked Sep 17, 2026
23	Premier Medical Group Of The Hudson Valley	Indirect evidence	Poughkeepsie, NY, United StatesHQ checked Sep 17, 2026	501-1,000	209 contacts →
	Indirect evidence “We provide patients with in-depth and compassionate care to treat the whole you in the fields of urology, gynecology, gastroenterology, rheumatology, cardiology, dermatology…” Source: RevenueBase Database · checked Sep 17, 2026
24	White-Wilson Medical Center, P.A	Partial evidence	Fort Walton Beach, FL, United StatesHQ checked Sep 17, 2026	201-500	208 contacts →
	Partial evidence “White-Wilson Medical Center is a multi-specialty healthcare organization committed to providing high-quality, patient-centered care to the communities we serve.” Source: RevenueBase Database · checked Sep 17, 2026
25	Optima Medical	Partial evidence	Scottsdale, AZ, United StatesHQ checked Sep 17, 2026	501-1,000	207 contacts →
	Partial evidence “Optima Medical is an Arizona-based medical group consisting of 30 locations and over 130+ medical providers, who care for more than patients statewide.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: private medical practices. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names private medical practices.
Partial evidence: Its own public description names part of private medical practices, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name private medical practices. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 3,466 private medical practices based in the United States

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Private medical practices based in the United States at a glance

As of Sep 17, 2026

19.3%Verified-email coverage

12.9Average contacts per company

1-10Median size (employees)

2.2%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

1,960

11-50

1,094

51-200

260

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 3,466 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among private medical practices, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “private medical practices”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names private medical practices), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among private medical practices, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 8,620 across the full list. 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 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Private medical practices by metro

Private medical practices in New York77
Private medical practices in Houston50
Private medical practices in Austin31
Private medical practices in Dallas26
Private medical practices in Miami26
Private medical practices in San Antonio25

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names private medical practices, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many private medical practices are there based in the United States?

RevenueBase identified 3,466 private medical practices headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

IHA, headquartered in Ann Arbor, tops this list with the largest team on record.

Which city has the most private medical practices?

New York leads with 77 headquartered companies, followed by Houston (50) and Austin (31).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 8,620 verified decision-maker contacts tracked across these 3,466 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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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 Smart Search, 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.