Company lists · Data refreshed September 2026
Top 25 Hospital medical staff organizations based in the United States
RevenueBase identified 186 hospital medical staff organizations headquartered in the United States as of September 2026 and tracks 9,378 professional contacts across them, including 1,503 with verified work emails. Chicago is the largest hub.
This list covers hospital medical staff organizations 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 16, 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.
The 25 largest hospital medical staff organizations based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,346 contacts → | ||||
Partial evidence “At Cookeville Regional Medical Center, we are dedicated to providing the highest quality care to our patients and making a positive impact on our community.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 687 contacts → | ||||
Strong evidence “Delnor Hospital is part of Northwestern Medicine.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 666 contacts → | ||||
Partial evidence “Apogee Physicians is the largest entirely physician-owned and operated hospitalist group in the nation*.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 423 contacts → | ||||
Partial evidence “Beth Israel Deaconess Hospital−Needham (BID−Needham) is a licensed 58-bed acute care community hospital.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 251 contacts → | ||||
Indirect evidence “AFMC was incorporated in 1972 as a private nonprofit educational organization.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 174 contacts → | ||||
Strong evidence “At UNM Sandoval Regional Medical Center (SRMC), you benefit from the personal attention of a community hospital and the expertise and resources of an academic health care facility.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 173 contacts → | ||||
Partial evidence “The California Medical Association is a professional association representing more than California physicians (#CMAdocs) in all medical specialties and modes of practice.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 165 contacts → | ||||
Strong evidence “The Society of Hospital Medicine (SHM) exists to promote exceptional care for hospitalized patients.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 151 contacts → | ||||
Indirect evidence “At Hardenbergh Group, a Sentact Company, we are stewards and protectors of healthcare organizations.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 144 contacts → | ||||
Strong evidence “Greeley is a partner to healthcare organizations nationwide, helping them optimize medical staff services for the past 30+ years.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 126 contacts → | ||||
Strong evidence “The Finley Hospital, in Dubuque, Iowa, is recognized as a top-rated community hospital in the Tri-State area, who offer a full-range of medical services from caring and dedicated…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 103 contacts → | ||||
Partial evidence “Lafayette Surgical Specialty Hospital (LSSH) is a 20-bed physician-owned hospital built in 2004 in Lafayette, Louisiana.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 91 contacts → | ||||
Indirect evidence “PAMED helps Pennsylvania's physicians put patients over paperwork by advocating, educating, and navigating on their behalf.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 80 contacts → | ||||
Partial evidence “It is the mission of Practice Resources, LLC, a Management Service Organization, to provide quality management services in the areas of billing, electronic medical records, human…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 76 contacts → | ||||
Strong evidence “For over 20 years, IN Compass Health has been developing, managing, and improving emergency medicine and hospital medicine services for hospitals and health systems nationwide.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 74 contacts → | ||||
Indirect evidence “The UC San Diego PACE Program is an industry leader in competency assessments, age-based screening evaluations, fitness for duty evaluations, practice and billing monitoring…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 65 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 63 contacts → | ||||
Partial evidence “The Ohio State Medical Association (OSMA) is a professional association representing nearly physicians, residents and medical students in the state of Ohio on issues including…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 61 contacts → | ||||
Partial evidence “The Hannibal Clinic is a physician directed corporation whose mission is to support and assist its physicians and other healthcare providers in the practice of medicine founded…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 51 contacts → | ||||
Partial evidence “Hospitalist Group” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 48 contacts → | ||||
Indirect evidence “MACIPA is a physician membership organization, established in 1985.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 35 contacts → | ||||
Partial evidence “The Wisconsin Hospital Association advocates on behalf of its members who provide high quality, affordable, and accessible healthcare services - resulting in healthier Wisconsin…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 33 contacts → | ||||
Partial evidence “Paradigm is a multiple award-winning medical education company committed to delivering innovative, certified educational initiatives for healthcare professionals.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 31 contacts → | ||||
Partial evidence “WHO WE ARE: The Tennessee Medical Association is the state's largest physician organization dedicated to serving MDs and DOs.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 30 contacts → | ||||
Partial evidence “The Minnesota Medical Association is a non-profit professional association representing physicians, residents and medical students.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
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: hospital medical staff organizations. 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 hospital medical staff organizations.
- Partial evidence
- Its own public description names part of hospital medical staff organizations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name hospital medical staff organizations. 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 186 hospital medical staff organizations based in the United States
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Hospital medical staff organizations based in the United States at a glance
As of Sep 16, 2026Companies by employee count
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 186 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 hospital medical staff organizations, 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 “hospital medical staff organizations”. 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 hospital medical staff organizations), 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 hospital medical staff organizations, 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, 1,503 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 16, 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.
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 hospital medical staff organizations, 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 hospital medical staff organizations are there based in the United States?
RevenueBase identified 186 hospital medical staff organizations 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?
Cookeville Regional Medical Center, headquartered in Cookeville, tops this list with the largest team on record.
Which city has the most hospital medical staff organizations?
Chicago leads with 7 headquartered companies, followed by Miami (4) and Sacramento (4).
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 1,503 verified decision-maker contacts tracked across these 186 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 16, 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.
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