Company lists · Data refreshed September 2026

Top 25 Primary care medical practices based in the United States

Name: Primary care 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 3,349 companies tracked

RevenueBase identified 3,349 primary care medical practices headquartered in 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 primary care 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

3,349Companies

44,327Contacts tracked

10,886Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest primary care medical practices based in the United States

Ranked by team size

Top 25 of 3,349 primary care 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 primary care 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	OAK Street Health, Part Of CVS Health	Strong evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	5,001-10,000	4,950 contacts →
	Strong evidence “Oak Street Health is a network of value-based primary care centers serving older adults on Medicare.” Source: RevenueBase Database · checked Sep 17, 2026
2	Atrius Health	Strong evidence	Newton, MA, United StatesHQ checked Sep 17, 2026	5,001-10,000	1,906 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
3	Community Health Center	Indirect evidence	Middletown, CT, United StatesHQ checked Sep 17, 2026	501-1,000	1,754 contacts →
	Indirect evidence “Community Health Center, Inc.(CHC).” Source: RevenueBase Database · checked Sep 17, 2026
4	Cano Health	Strong evidence	Miami, FL, United StatesHQ checked Sep 17, 2026	1,001-5,000	974 contacts →
	Strong evidence “We’re transforming primary health care by improving the health of our patients.” Source: RevenueBase Database · checked Sep 17, 2026
5	Esse Health	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 17, 2026	501-1,000	499 contacts →
	Partial evidence “Esse Health is leading the health care community by placing patients and their physicians at the center of health decisions.” Source: RevenueBase Database · checked Sep 17, 2026
6	Intermed, P.A	Strong evidence	Portland, ME, United StatesHQ checked Sep 17, 2026	501-1,000	455 contacts →
	Strong 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
7	Avance Care	Strong evidence	Durham, NC, United StatesHQ checked Sep 17, 2026	501-1,000	432 contacts →
	Strong evidence “Since 2008, Avance Care has been an innovative primary care provider offering convenient, cost effective health care services.” Source: RevenueBase Database · checked Sep 17, 2026
8	Starling Physicians	Strong evidence	Rocky Hill, CT, United StatesHQ checked Sep 17, 2026	501-1,000	367 contacts →
	Strong 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
9	The Villages Health	Strong evidence	The Villages, FL, United StatesHQ checked Sep 17, 2026	501-1,000	349 contacts →
	Strong evidence “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!” Source: RevenueBase Database · checked Sep 17, 2026
10	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
11	Diagnostic Clinic Of Longview	Partial evidence	Longview, TX, United StatesHQ checked Sep 17, 2026	501-1,000	278 contacts →
	Partial evidence “DCOL is the largest independent multi-specialty practice in East Texas owned and operated by more than 50 physician shareholders.” Source: RevenueBase Database · checked Sep 17, 2026
12	ONE Community Health Sacramento	Strong evidence	Sacramento, CA, United StatesHQ checked Sep 17, 2026	201-500	272 contacts →
	Strong evidence “One Community Health is a primary healthcare and specialty care provider dedicated to improving the health and well-being of our community.” Source: RevenueBase Database · checked Sep 17, 2026
13	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
14	Coastal Medical	Strong evidence	Providence, RI, United StatesHQ checked Sep 17, 2026	501-1,000	256 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
15	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
16	Maxhealth	Strong evidence	Tampa, FL, United StatesHQ checked Sep 17, 2026	501-1,000	217 contacts →
	Strong evidence “The MaxHealth Network is a network of primary care facilities for adults and seniors with over 50 locations throughout Florida.” Source: RevenueBase Database · checked Sep 17, 2026
17	Central Florida Health Care, INC	Indirect evidence	Winter Haven, FL, United StatesHQ checked Sep 17, 2026	501-1,000	210 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
18	Vera Whole Health	Partial evidence	Sandy, UT, United StatesHQ checked Sep 17, 2026	201-500	198 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
19	Eagle Physicians & Associates, P.A	Partial evidence	Greensboro, NC, United StatesHQ checked Sep 17, 2026	201-500	195 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
20	Camarena Health	Strong evidence	Madera, CA, United StatesHQ checked Sep 17, 2026	201-500	186 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
21	Signature Healthcare, Pllc	Strong evidence	Charlotte, NC, United StatesHQ checked Sep 17, 2026	n/a	171 contacts →
	Strong evidence “Signature Healthcare, PLLC provides world-class primary care concierge medicine in the Southpark area of Charlotte, NC.” Source: RevenueBase Database · checked Sep 17, 2026
22	Woodlands Medical Specialists	Strong evidence	Pensacola, FL, United StatesHQ checked Sep 17, 2026	51-200	163 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
23	Maryland Primary Care Physicians	Strong evidence	Hanover, MD, United StatesHQ checked Sep 17, 2026	201-500	160 contacts →
	Strong evidence “Since 1996, Maryland Primary Care Physicians (MPCP) has provided personalized, high-quality healthcare to families throughout Central Maryland.” Source: RevenueBase Database · checked Sep 17, 2026
24	Healthtexas Primary Care Doctors	Strong evidence	San Antonio, TX, United StatesHQ checked Sep 17, 2026	201-500	155 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
25	Allcare Primary & Immediate Care	Strong evidence	Rockville, United StatesHQ checked Sep 17, 2026	201-500	153 contacts →
	Strong evidence “AllCare Family Medicine is now a CloseKnit Primary Care practice.” 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: primary care 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 primary care medical practices.
Partial evidence: Its own public description names part of primary care medical practices, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name primary care 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 3,349 primary care medical practices based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 10,886 reachable decision-makers.

Free signup · no credit card

View the full list →

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

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

Primary care medical practices by metro

Primary care medical practices in New York56
Primary care medical practices in Houston48
Primary care medical practices in Austin28
Primary care 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 primary care 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 primary care medical practices are there based in the United States?

RevenueBase identified 3,349 primary care 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?

OAK Street Health, Part Of CVS Health, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most primary care medical practices?

New York leads with 56 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 10,886 verified decision-maker contacts tracked across these 3,349 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.

Ready to reach these companies? Verified emails and direct dials for all 3,349 primary care medical practices based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Primary care medical practices by geography

Browse the directory

Browse: Companies home · All United States lists · All Primary care medical practices lists · New lists

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.