Company lists · Data refreshed September 2026

Top 25 Walk-in clinics based in the United States

RevenueBase identified 2,027 company matches for walk-in clinics associated with the United States as of September 2026 and tracks 51,291 professional contacts across them, including 9,131 with verified work emails. Houston is the largest hub.

This list covers company matches for walk-in clinics 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 22, 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 22, 2026 How this list was built
2,027Companies
51,291Contacts tracked
9,131Verified emails
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The 25 largest walk-in clinics based in the United States

Ranked by team size
Top 25 of 2,027 company matches for walk-in clinics based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 matchGlen Allen, VA, United StatesHQ recorded Sep 22, 20261,001-5,0002,136 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchWoonsocket, RI, United StatesHQ recorded Sep 22, 202610001+1,740 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchChicago, TX, United StatesHQ recorded Sep 22, 202610001+1,609 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchAtlanta, GA, United StatesHQ recorded Sep 22, 20261,001-5,0001,353 contacts →

Exact match

“GoHealth partners with innovative and award-winning health systems to simplify and improve the way customers across the U.S.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchFort Myers, FL, United StatesHQ recorded Sep 22, 20261,001-5,0001,220 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchCa, United StatesHQ recorded Sep 22, 2026501-1,0001,110 contacts →

Exact match

“Carbon Health is a health technology company and modern healthcare provider that simplifies access to care through its EHR platform, locations with urgent and primary services…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchChicago, IL, United StatesHQ recorded Sep 22, 20261,001-5,0001,082 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchBirmingham, AL, United StatesHQ recorded Sep 22, 20261,001-5,0001,065 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchWaynesboro, TN, United StatesHQ recorded Sep 22, 20261,001-5,0001,009 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchTempe, AZ, United StatesHQ recorded Sep 22, 20261,001-5,000895 contacts →

Exact match

“At NextCare, we believe exceptional care starts with exceptional people.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchCincinnati, OH, United StatesHQ recorded Sep 22, 20261,001-5,000849 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchCoppell, TX, United StatesHQ recorded Sep 22, 20261,001-5,000790 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchDurham, NC, United StatesHQ recorded Sep 22, 2026501-1,000735 contacts →

Exact match

“FastMed is one of the largest urgent care providers in North Carolina.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchPortsmouth, NH, United StatesHQ recorded Sep 22, 20261,001-5,000591 contacts →

Exact match

“At ConvenientMD we’re on a mission to make good health more convenient for all.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Sep 22, 20261,001-5,000537 contacts →

Exact match

“Welcome to our page!”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchValencia, CA, United StatesHQ recorded Sep 22, 20261,001-5,000535 contacts →

Exact match

“CONCENTRA WELCOMES U.S.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchTigard, OR, United StatesHQ recorded Sep 22, 2026501-1,000514 contacts →

Exact match

“Founded in 2006 by two doctors and a belief that everyone deserves better healthcare, we opened the first ZoomCare clinic outside of Portland, Oregon, on the second floor of a…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchWest Palm Beach, FL, United StatesHQ recorded Sep 22, 2026501-1,000486 contacts →

Exact match

“110+ state-of-the-art urgent care clinics in Florida.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchJacksonville, FL, United StatesHQ recorded Sep 22, 2026501-1,000379 contacts →

Exact match

“To learn more about CareSpot or to find a location near you, visit CareSpot proudly serves communities across Florida with a commitment to improving how people experience…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchRosemont, IL, United StatesHQ recorded Sep 22, 2026501-1,000351 contacts →

Exact match

“Physicians Immediate Care, also known as Physicians Urgent Care, is a Midwest leader in urgent care and occupational health services.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchEl Segundo, CA, United StatesHQ recorded Sep 22, 2026501-1,000344 contacts →

Exact match

“Phishing Alert- Exer has recently been made aware of a phishing scam using our name and logo.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchSt. Louis, MO, United StatesHQ recorded Sep 22, 2026201-500330 contacts →

Exact match

“Total Access Urgent Care (TAUC) has been proudly providing top-ranked patient care for St.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchNew York, NY, United StatesHQ recorded Sep 22, 2026201-500319 contacts →

Exact match

“Sollis exists for those who believe healthcare should feel different.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Sep 22, 2026501-1,000310 contacts →

Exact match

“At Next Level, we treat people of all ages for conditions that need immediate attention but are not life-threatening.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchGarden City, ID, United StatesHQ recorded Sep 22, 2026501-1,000309 contacts →

Exact match

“At Primary Health Medical Group, we're committed to providing our patients with high-quality, comprehensive, convenient and friendly urgent care and family medicine services.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 2,027 walk-in clinics based in the United States

See the full list, filter by size, metro and specialty, and access 9,131 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Walk-in clinics based in the United States at a glance

As of Sep 22, 2026
17.8%Verified-email coverage
25.3Average contacts per company
11-50Median size (employees)
2.2%Largest-city concentration · Houston
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
800
11-50
844
51-200
232
201-500
70
501-1,000
30
1,001-5,000
22
5,001-10,000
2
10001+
6

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 2,027 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 “walk-in clinics” 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 9,131 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 22, 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 “walk-in clinics”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many walk-in clinics are there based in the United States?

RevenueBase identified 2,027 company matches for walk-in clinics 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?

Patient First tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most walk-in clinics?

Houston leads with 45 company records, followed by New York (33) and Dallas (15).

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 9,131 professional contacts with verified work emails tracked across these 2,027 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 22, 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.