Ranked list
The 10 largest medical groups in New York by HCPs
The same ranking for New York medical groups.
Ranked listRefreshed monthly
The 10 largest medical groups in the US by HCPs
The Permanente Medical Group, Inc. has the most HCPs of any medical group in the US, 21,772, followed by Southern California Permanente Medical Group in Pasaden (19,499) and Grow Therapy in Columbus (16,071). The 10 are in six states.
- The Permanente Medical Group, Inc.21,772HCPs12,229physicians
- Southern California Permanente Medical Group19,499HCPs11,438physicians
- Grow Therapy16,071HCPs68physicians
- Northwell Health Physician Partners Cardiology at Great Neck11,817HCPs6,536physicians
- NYU Langone Orthopedic Surgery Associates9,874HCPs5,858physicians
- Rula Health9,789HCPs17physicians
- New York Medical Behavioral Health Services9,601HCPs95physicians
- Cleveland Clinic8,431HCPs4,501physicians
- University of Pittsburgh Physicians, Department of Radiology8,411HCPs4,597physicians
- Signify Health8,187HCPs1,658physicians
The 10 highest of 114,975 US medical groups that report HCPs. Ranks compare size, not quality of care.
Every US medical group in the directoryThe median US medical group has 5 HCPs
114,975 US medical groups report HCPs. The median medical group has 5 HCPs, so The Permanente Medical Group, Inc. is about 4,354 times that size.
- the size of the median US medical group, which has 5 HCPs
- 4,354×
- of the 114,975 US medical groups that report HCPs
- <0.1%
How we ranked the top US medical groups
- Measure
- HCPs linked to each group in CMS enrollment and the Dmand AI database.
- What counts as a group
- One Medicare PAC ID. A group that bills under several names counts once.
- Field
- 114,975 US medical groups in the Dmand AI database report HCPs.
- Ties
- Medical groups with the same number share a rank.
- What a rank means
- Size only. A rank compares HCPs; it says nothing about quality of care.
- Refresh
- Monthly. Updated Oct 28, 2026.
FAQ
Questions about the top US medical groups
Answers from the same data, updated monthly.
Which US medical group has the most HCPs?
The Permanente Medical Group, Inc. in Pleasanton, California, with 21,772 HCPs. Southern California Permanente Medical Group is second with 19,499.
What are the top 10 US medical groups by HCPs?
The Permanente Medical Group, Inc. (21,772), Southern California Permanente Medical Group (19,499), Grow Therapy (16,071), Northwell Health Physician Partners Cardiology at Great Neck (11,817), NYU Langone Orthopedic Surgery Associates (9,874), Rula Health (9,789), New York Medical Behavioral Health Services (9,601), Cleveland Clinic (8,431), University of Pittsburgh Physicians, Department of Radiology (8,411), Signify Health (8,187).
Which state has the most of the 10 top medical groups?
New York, with three of the 10.
How many HCPs does a typical US medical group have?
The median US medical group that reports HCPs has 5 HCPs, out of 114,975 that report them.
How often is this list updated?
Every month, when the Dmand AI database refreshes. This version is from Oct 28, 2026.
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