Company lists · Data refreshed September 2026

Top 25 Primary care medical practices based in the United States

RevenueBase identified 3,349 company matches for primary care medical practices associated with the United States as of September 2026 and tracks 44,327 professional contacts across them, including 10,886 with verified work emails. New York is the largest hub.

This list covers company matches for primary care medical 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 17, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built
3,349Companies
44,327Contacts tracked
10,886Verified emails
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The 25 largest primary care medical practices based in the United States

Ranked by team size
Top 25 of 3,349 company matches for primary care medical practices based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchChicago, IL, United StatesHQ recorded Sep 17, 20265,001-10,0004,950 contacts →

Exact match

“Oak Street Health is a network of value-based primary care centers serving older adults on Medicare.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2Exact matchNewton, MA, United StatesHQ recorded Sep 17, 20265,001-10,0001,906 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 17, 2026 · View company records in RevenueBase
3Exact matchMiddletown, CT, United StatesHQ recorded Sep 17, 2026501-1,0001,754 contacts →

Exact match

“Community Health Center, Inc.(CHC).”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4Exact matchMiami, FL, United StatesHQ recorded Sep 17, 20261,001-5,000974 contacts →

Exact match

“We’re transforming primary health care by improving the health of our patients.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5Exact matchSt. Louis, MO, United StatesHQ recorded Sep 17, 2026501-1,000499 contacts →

Exact match

“Esse Health is leading the health care community by placing patients and their physicians at the center of health decisions.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6Exact matchPortland, ME, United StatesHQ recorded Sep 17, 2026501-1,000455 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 17, 2026 · View company records in RevenueBase
7Exact matchDurham, NC, United StatesHQ recorded Sep 17, 2026501-1,000432 contacts →

Exact match

“Since 2008, Avance Care has been an innovative primary care provider offering convenient, cost effective health care services.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8Exact matchRocky Hill, CT, United StatesHQ recorded Sep 17, 2026501-1,000367 contacts →

Exact match

“Starling Physicians has over 300 providers who deliver care across 27 medical specialties in 30 convenient locations.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9Exact matchThe Villages, FL, United StatesHQ recorded Sep 17, 2026501-1,000349 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 17, 2026 · View company records in RevenueBase
10Exact matchDurham, NC, United StatesHQ recorded Sep 17, 202610001+335 contacts →

Exact match

“Visit our main page: Duke University Health System”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11Exact matchLongview, TX, United StatesHQ recorded Sep 17, 2026501-1,000278 contacts →

Exact match

“DCOL is the largest independent multi-specialty practice in East Texas owned and operated by more than 50 physician shareholders.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12Exact matchSacramento, CA, United StatesHQ recorded Sep 17, 2026201-500272 contacts →

Exact match

“One Community Health is a primary healthcare and specialty care provider dedicated to improving the health and well-being of our community.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13Exact matchCharlotte, NC, United StatesHQ recorded Sep 17, 2026201-500270 contacts →

Exact match

“As an independent practice, the difference is personal.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14Exact matchProvidence, RI, United StatesHQ recorded Sep 17, 2026501-1,000256 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 17, 2026 · View company records in RevenueBase
15Exact matchTucson, AZ, United StatesHQ recorded Sep 17, 2026501-1,000242 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 17, 2026 · View company records in RevenueBase
16Exact matchTampa, FL, United StatesHQ recorded Sep 17, 2026501-1,000217 contacts →

Exact match

“The MaxHealth Network is a network of primary care facilities for adults and seniors with over 50 locations throughout Florida.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17Exact matchWinter Haven, FL, United StatesHQ recorded Sep 17, 2026501-1,000210 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18Exact matchSandy, UT, United StatesHQ recorded Sep 17, 2026201-500198 contacts →

Exact match

“When it comes to care, you really can have it all: improved health outcomes, a more human experience for members and providers, and significantly reduced overall costs.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19Exact matchGreensboro, NC, United StatesHQ recorded Sep 17, 2026201-500195 contacts →

Exact match

“Nationally Recognized Patient Medical Home in Greensboro, NC If having a lifetime of good health is important to you and your loved ones, you owe it to yourself to learn more…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20Exact matchMadera, CA, United StatesHQ recorded Sep 17, 2026201-500186 contacts →

Exact match

“We are the largest provider of primary health care services in Madera County and are focused on providing the best quality of health care to the members of our local communities.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21Exact matchCharlotte, NC, United StatesHQ recorded Sep 17, 2026n/a171 contacts →

Exact match

“Signature Healthcare, PLLC provides world-class primary care concierge medicine in the Southpark area of Charlotte, NC.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22Exact matchPensacola, FL, United StatesHQ recorded Sep 17, 202651-200163 contacts →

Exact match

“At Woodlands Medical Specialists, our primary care team is brought together by a shared commitment to caring for our community and preserving the trust at the heart of the…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23Exact matchHanover, MD, United StatesHQ recorded Sep 17, 2026201-500160 contacts →

Exact match

“Since 1996, Maryland Primary Care Physicians (MPCP) has provided personalized, high-quality healthcare to families throughout Central Maryland.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24Exact matchSan Antonio, TX, United StatesHQ recorded Sep 17, 2026201-500155 contacts →

Exact match

“HealthTexas Medical Group was established by local physicians in 1994 who recognized the need for primary care doctors to play a more significant role in a patient's overall…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25Exact matchRockville, United StatesHQ recorded Sep 17, 2026201-500153 contacts →

Exact match

“AllCare Family Medicine is now a CloseKnit Primary Care practice.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

Showing 25 of 3,349 primary care medical practices based in the United States

See the full list, filter by size, metro and specialty, and access 10,886 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Primary care medical practices based in the United States at a glance

As of Sep 17, 2026
24.6%Verified-email coverage
13.2Average contacts per company
1-10Median size (employees)
1.7%Largest-city concentration · New York
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
1,961
11-50
992
51-200
250
201-500
66
501-1,000
27
1,001-5,000
8
5,001-10,000
3
10001+
4

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 3,349 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 “primary care medical 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 10,886 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 17, 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.

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 “primary care medical practices”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 3,349 company matches for primary care medical 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?

OAK Street Health, Part Of CVS Health tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most primary care medical practices?

New York leads with 57 company records, followed by Houston (48) and Austin (28).

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 10,886 professional contacts with verified work emails tracked across these 3,349 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 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 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.