Company lists · Data refreshed September 2026

Top 25 Independent physician practices based in the United States

RevenueBase identified 967 company matches for independent physician practices associated with the United States as of September 2026 and tracks 50,519 professional contacts across them, including 13,667 with verified work emails. New York is the largest hub.

This list covers company matches for independent physician 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
967Companies
50,519Contacts tracked
13,667Verified emails
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The 25 largest independent physician practices based in the United States

Ranked by team size
Top 25 of 967 company matches for independent physician practices based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchBurlington, MA, United StatesHQ recorded Sep 20, 20265,001-10,0004,441 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
2Exact matchNewton, MA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
3Exact matchSpringfield, IL, United StatesHQ recorded Sep 20, 20261,001-5,0001,581 contacts →

Exact match

“Springfield Clinic is dedicated to preserving the trusted patient-provider relationships we have carefully developed through 84 years of serving you with reliable, primary and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchDowners Grove, IL, United StatesHQ recorded Sep 20, 20261,001-5,0001,438 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
5Exact matchProvo, UT, United StatesHQ recorded Sep 20, 20261,001-5,0001,267 contacts →

Exact match

“Revere Health is the largest independent multispecialty physician group in Utah and employs over 200 physicians and 200 advanced practitioners.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchLakeland, FL, United StatesHQ recorded Sep 20, 20261,001-5,0001,046 contacts →

Exact match

“Watson Clinic is one of the largest multispecialty medical clinics in Florida.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchHattiesburg, MS, United StatesHQ recorded Sep 20, 20261,001-5,000932 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
8Exact matchSeattle, WA, United StatesHQ recorded Sep 20, 2026501-1,000860 contacts →

Exact match

“The Polyclinic is one of the largest, independent multi-specialty clinics in the Puget Sound area, with more than 170 primary care and specialty physicians in most areas of…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchLos Angeles, CA, United StatesHQ recorded Sep 20, 20261,001-5,000840 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
10Exact matchAmes, IA, United StatesHQ recorded Sep 20, 20261,001-5,000788 contacts →

Exact match

“McFarland Clinic is Iowa's largest physician-owned multi-specialty clinic.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchMiddletown, NY, United StatesHQ recorded Sep 20, 20261,001-5,000771 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
12Exact matchWesterville, OH, United StatesHQ recorded Sep 20, 20261,001-5,000752 contacts →

Exact match

“At Central Ohio Primary Care (COPC), we’re building something different: a healthcare model where people always come first, our patients and our team members.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchSilverdale, WA, United StatesHQ recorded Sep 20, 2026201-500724 contacts →

Exact match

“The Doctors Clinic, a part of Franciscan Medical Group, is a multi-specialty, physician-owned medical group with seven clinic locations across Kitsap County.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchSouth Ogden, UT, United StatesHQ recorded Sep 20, 2026501-1,000620 contacts →

Exact match

“Our mission is to be the clinic of choice for patients, employees, and providers, by remaining a thriving independent, physician-owned, multi-specialty group practice.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchNashville, TN, United StatesHQ recorded Sep 20, 20261,001-5,000598 contacts →

Exact match

“OneOncology was founded by community physicians, for community physicians, with the mission of improving the lives of everyone living with cancer and other diseases.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchToledo, OH, United StatesHQ recorded Sep 20, 20261,001-5,000546 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
17Exact matchSan Diego, CA, United StatesHQ recorded Sep 20, 20261,001-5,000545 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchEmeryville, CA, United StatesHQ recorded Sep 20, 20261,001-5,000543 contacts →

Exact match

“CEP America announced today that it has unified with its subsidiaries MedAmerica and MedAmerica Billing Services Inc.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchMission Hills, CA, United StatesHQ recorded Sep 20, 20261,001-5,000526 contacts →

Exact match

“Facey Medical Foundation is the MSO for Facey Medical Group with offices in the San Fernando, Santa Clarita, and Simi valleys.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchSt. Louis, MO, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
21Exact matchStatesville, NC, United StatesHQ recorded Sep 20, 20261,001-5,000495 contacts →

Exact match

“Piedmont HealthCare is one of the largest physician-owned and directed, multi-specialty groups in North Carolina and the Southeast regions.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchPortland, ME, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
23Exact matchGreen Bay, WI, United StatesHQ recorded Sep 20, 2026501-1,000437 contacts →

Exact match

“BayCare Clinic is the largest physician-owned specialty-care clinic serving 13 regional communities in northeastern Wisconsin and Michigan’s Upper Peninsula.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchSan Antonio, TX, United StatesHQ recorded Sep 20, 2026501-1,000387 contacts →

Exact match

“Gonzaba Medical Group’s founder, William Gonzaba, M.D, started his family practice in 1960 on South Flores Street, not far from the neighborhood where he was born and raised.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchBuffalo, NY, United StatesHQ recorded Sep 20, 2026501-1,000386 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

Showing 25 of 967 independent physician practices based in the United States

See the full list, filter by size, metro and specialty, and access 13,667 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Independent physician practices based in the United States at a glance

As of Sep 20, 2026
27.1%Verified-email coverage
52.2Average contacts per company
11-50Median size (employees)
3.0%Largest-city concentration · New York
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
437
11-50
251
51-200
116
201-500
65
501-1,000
44
1,001-5,000
39
5,001-10,000
8
10001+
1

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 967 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 “independent physician 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 13,667 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.

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

How many independent physician practices are there based in the United States?

RevenueBase identified 967 company matches for independent physician 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 independent physician practices?

New York leads with 29 company records, followed by Houston (13) and San Diego (9).

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 13,667 professional contacts with verified work emails tracked across these 967 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.

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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.