Company lists · Data refreshed September 2026

Top 25 Medical clinics based in the United States

RevenueBase identified 5,210 medical clinics headquartered in the United States as of September 2026 and tracks 133,863 professional contacts across them, including 31,619 with verified work emails. Houston is the largest hub.

This list covers medical clinics 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
5,210Companies
133,863Contacts tracked
31,619Verified emails
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The 25 largest medical clinics based in the United States

Ranked by team size
Top 25 of 5,210 medical clinics 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 medical clinics: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceFranklin, TN, United StatesHQ checked Sep 17, 202610001+8,914 contacts →

Indirect evidence

“Community Health Systems is one of the nation's leading healthcare providers.”

Source: RevenueBase Database · checked Sep 17, 2026
2Indirect evidenceMiami Gardens, FL, United StatesHQ checked Sep 17, 20261,001-5,0002,322 contacts →

Indirect evidence

“We’re on a mission.”

Source: RevenueBase Database · checked Sep 17, 2026
3Indirect evidenceGlen Allen, VA, United StatesHQ checked Sep 17, 20261,001-5,0002,136 contacts →

Indirect evidence

“Founded by a physician in 1981, Patient First provides non-appointment urgent care for routine injuries and illnesses as well as primary care for patients who do not have a…”

Source: RevenueBase Database · checked Sep 17, 2026
4Partial evidenceNewton, MA, United StatesHQ checked Sep 17, 20265,001-10,0001,906 contacts →

Partial 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
5Strong evidenceWoonsocket, RI, United StatesHQ checked Sep 17, 202610001+1,740 contacts →

Strong evidence

“With 900+ MinuteClinic medical clinics in local neighborhoods and virtual care options, we’re giving families greater access to quality care every day.”

Source: RevenueBase Database · checked Sep 17, 2026
6Indirect evidenceChicago, TX, United StatesHQ checked Sep 17, 202610001+1,609 contacts →

Indirect evidence

“VillageMD provides high-quality, accessible healthcare services for individuals and communities across the United States, with primary, multi-specialty, and urgent care providers…”

Source: RevenueBase Database · checked Sep 17, 2026
7Partial evidenceSpringfield, IL, United StatesHQ checked Sep 17, 20261,001-5,0001,581 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 17, 2026
8Indirect evidenceBrentwood, TN, United StatesHQ checked Sep 17, 202610001+1,340 contacts →

Indirect evidence

“Surgery Partners is a leading operator of surgical facilities and ancillary services with more than 180 locations nationwide.”

Source: RevenueBase Database · checked Sep 17, 2026
9Indirect evidenceProvo, UT, United StatesHQ checked Sep 17, 20261,001-5,0001,267 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
10Indirect evidenceFort Myers, FL, United StatesHQ checked Sep 17, 20261,001-5,0001,220 contacts →

Indirect evidence

“Founded in Port Charlotte, Florida, in 2008, and now headquartered in Fort Myers, Millennium Physician Group is one of the largest comprehensive physician-led groups with more…”

Source: RevenueBase Database · checked Sep 17, 2026
11Strong evidenceChicago, IL, United StatesHQ checked Sep 17, 20261,001-5,0001,082 contacts →

Strong evidence

“WellNow Urgent Care is one of the fastest-growing providers of urgent medical care, virtual care, occupational health services and clinical research in the United States.”

Source: RevenueBase Database · checked Sep 17, 2026
12Partial evidenceRancho Cordova, CA, United StatesHQ checked Sep 17, 20261,001-5,0001,076 contacts →

Partial evidence

“Dignity Health Medical Foundation, established in 1990, is a not-for-profit organization providing award-winning, patient-centered health care in a variety of areas, including…”

Source: RevenueBase Database · checked Sep 17, 2026
13Indirect evidenceSeattle, WA, United StatesHQ checked Sep 17, 20261,001-5,0001,071 contacts →

Indirect evidence

“Sea Mar Community Health Centers is a community-based organization committed to providing quality, comprehensive health, human, housing, educational and cultural services to…”

Source: RevenueBase Database · checked Sep 17, 2026
14Indirect evidenceBirmingham, AL, United StatesHQ checked Sep 17, 20261,001-5,0001,065 contacts →

Indirect evidence

“Starting with a single location in Alabama in 1982, American Family Care (AFC) has pioneered the concept of non–emergency room urgent care.”

Source: RevenueBase Database · checked Sep 17, 2026
15Strong evidenceLakeland, FL, United StatesHQ checked Sep 17, 20261,001-5,0001,046 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
16Partial evidenceHarvey, IL, United StatesHQ checked Sep 17, 2026n/a1,024 contacts →

Partial evidence

“For nearly a century we have pioneered sophisticated clinical care and developed the area's most convenient network of comprehensive outpatient centers, all dedicated to improve…”

Source: RevenueBase Database · checked Sep 17, 2026
17Partial evidenceWaynesboro, TN, United StatesHQ checked Sep 17, 20261,001-5,0001,009 contacts →

Partial evidence

“Fast Pace Urgent Care clinics provide treatments for a wide range of illnesses, injuries, and common conditions and provide a variety of wellness, diagnostic and screening…”

Source: RevenueBase Database · checked Sep 17, 2026
18Indirect evidenceMiami, FL, United StatesHQ checked Sep 17, 20261,001-5,000974 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
19Partial evidenceHattiesburg, MS, United StatesHQ checked Sep 17, 20261,001-5,000932 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
20Partial evidenceSeattle, WA, United StatesHQ checked Sep 17, 2026501-1,000860 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 17, 2026
21Partial evidenceCincinnati, OH, United StatesHQ checked Sep 17, 20261,001-5,000849 contacts →

Partial evidence

“The Little Clinic provides high quality, affordable healthcare located in convenient retail settings.”

Source: RevenueBase Database · checked Sep 17, 2026
22Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 20261,001-5,000840 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
23Strong evidenceZephyrhills, FL, United StatesHQ checked Sep 17, 20261,001-5,000818 contacts →

Strong evidence

“Florida Medical Clinic Orlando Health is a multi-specialty clinic that provides area residents with a resource for the latest advances in patient care.”

Source: RevenueBase Database · checked Sep 17, 2026
24Indirect evidenceCoppell, TX, United StatesHQ checked Sep 17, 20261,001-5,000790 contacts →

Indirect evidence

“CareNow® is dedicated to reducing your wait while improving your health.”

Source: RevenueBase Database · checked Sep 17, 2026
25Partial evidenceAmes, IA, United StatesHQ checked Sep 17, 20261,001-5,000788 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026

Showing 25 of 5,210 medical clinics based in the United States

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Medical clinics based in the United States at a glance

As of Sep 17, 2026
23.6%Verified-email coverage
25.7Average contacts per company
1-10Median size (employees)
1.9%Largest-city concentration · Houston
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
2,580
11-50
1,664
51-200
508
201-500
220
501-1,000
94
1,001-5,000
59
5,001-10,000
6
10001+
16

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 5,210 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 medical clinics, 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 “medical clinics”. 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 medical clinics), 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 medical clinics, 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, 31,619 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.

Medical clinics by metro

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 medical clinics, 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 medical clinics are there based in the United States?

RevenueBase identified 5,210 medical clinics 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?

Community Health Systems, headquartered in Franklin, tops this list with the largest team on record.

Which city has the most medical clinics?

Houston leads with 97 headquartered companies, followed by New York (68) and Chicago (43).

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 31,619 verified decision-maker contacts tracked across these 5,210 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.