Updated October 2026

Medical groups in California

Medical group directory
California

Medical groups: 10,378
Multi-specialty: 2,304
Single-specialty: 8,073
More than one site: 4,683
100+ physicians: 219

There are 10,378 medical groups in California with a Medicare PAC ID. The Permanente Medical Group, Inc. is the largest, with 11,708 California physicians. Kaiser Permanente has the most physicians across its groups, 22,698, and 73% of California groups are independent.

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The Permanente Medical Group, Inc. is the largest medical group in California, with 11,708 physicians

Ranked by physicians with a California address linked to each group. Southern California Permanente Medical Group is second with 11,175, and UCSF Pediatrics third with 3,527. 219 California groups have 100 or more physicians.

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Medical groups in California, ranked by physicians, 1,701 to 1,750
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1701	Trinity Medical Multi-Specialty GroupTemecula · 4 sites	-	7	25	Decision makers
1702	San Francisco Community Health CenterSan Francisco · 4 sites	Parent on file	7	24	Decision makers
1703	Besht Wellness GroupLos Angeles · 2 sites	-	7	23	Decision makers
1704	Nevada County Behavioral HealthGrass Valley · 1 site	Parent on file	7	23	Decision makers
1705	Inland Behavioral & Health Services, Inc.San Bernardino · 2 sites	Parent on file	7	21	Decision makers
1706	Medical Center of MarinSan Rafael · 3 sites	Parent on file	7	21	Decision makers
1707	Dream AnesthesiaIrvine · 3 sites	Parent on file	7	20	Decision makers
1708	Shepard Eye CenterSanta Maria · 9 sites	Parent on file	7	20	Decision makers
1709	The Elizabeth HospiceEscondido · 1 site	Parent on file	7	20	Decision makers
1710	Pacific Skin InstituteSacramento · 5 sites	-	7	19	Decision makers
1711	Stockton Hematology OncologyStockton · 6 sites	-	7	19	Decision makers
1712	Alexander Valley HealthcareCloverdale · 2 sites	Parent on file	7	18	Decision makers
1713	Alpha Hospitalist GroupFountain Valley · 3 sites	Parent on file	7	18	Decision makers
1714	CEP AmericaCampbell · 4 sites	Parent on file	7	18	Decision makers
1715	Sutter Lakeside HospitalLakeport · 5 sites	Parent on file	7	18	Decision makers
1716	TotalCare Walk-In ClinicChino · 4 sites	-	7	18	Decision makers
1717	Vital Total Health Medical Group, Inc.Walnut Creek · 2 sites	-	7	18	Decision makers
1718	Wilmington Community ClinicWilmington · 2 sites	Parent on file	7	18	Decision makers
1719	Mental Health Association of Orange CountySanta Ana · 7 sites	Parent on file	7	17	Decision makers
1720	Provident Primary Care IncMerced · 4 sites	-	7	17	Decision makers
1721	Digestive Disease Consultants of Orange CountyIrvine · 4 sites	-	7	16	Decision makers
1722	Docs Medical Group IncRedding · 4 sites	Parent on file	7	16	Decision makers
1723	Gastro Care InstituteLancaster · 4 sites	-	7	16	Decision makers
1724	Kolli Medical CorporationHemet · 3 sites	Parent on file	7	16	Decision makers
1725	ReMeDy Medical GroupSan Mateo · 7 sites	-	7	16	Decision makers
1726	UCLA HealthLos Angeles · 8 sites	Parent on file	7	16	Decision makers
1727	Zeiter Eye Medical GroupStockton · 10 sites	-	7	16	Decision makers
1728	Golden State Heart & VascularBurlingame · 5 sites	-	7	15	Decision makers
1729	Orthopaedic Surgery SpecialistsBurbank · 3 sites	Parent on file	7	15	Decision makers
1730	Pure Dermatology Cosmetic & Hair CenterNewport Beach · 1 site	-	7	15	Decision makers
1731	San Benito Health FoundationHollister · 1 site	-	7	15	Decision makers
1732	St. John Critical Care Medical Group, Inc.Bakersfield · 2 sites	-	7	15	Decision makers
1733	Beach Family Doctors Medical GroupHuntington Beach · 4 sites	-	7	14	Decision makers
1734	Core Physicians Medical GroupFountain Valley · 2 sites	-	7	14	Decision makers
1735	DermaSpaMEDBakersfield · 2 sites	-	7	14	Decision makers
1736	Foothills Pain Management ClinicCovina · 5 sites	-	7	14	Decision makers
1737	HouseCall MD of Southern CaliforniaLos Angeles · 1 site	Parent on file	7	14	Decision makers
1738	Livingstone Community Health ClinicStanton · 2 sites	Parent on file	7	14	Decision makers
1739	Los Angeles County Nephrology AssociatesMontebello · 2 sites	-	7	14	Decision makers
1740	Okerblom, Voegele and Hole MDSanta Maria · 3 sites	-	7	14	Decision makers
1741	Optic Eye CareMonterey Park · 2 sites	-	7	14	Decision makers
1742	Beach Cities Dermatology Medical CenterRedondo Beach · 4 sites	-	7	13	Decision makers
1743	Eye Physicians Medical / Surgical Center, Inc.Chula Vista · 1 site	-	7	13	Decision makers
1744	Gladstone ClinicDanville · 3 sites	-	7	13	Decision makers
1745	Mad River Community HospitalArcata · 2 sites	Parent on file	7	13	Decision makers
1746	Pacific Heights Medical GroupSan Francisco · 1 site	-	7	13	Decision makers
1747	Rheumatology and Arthritis Medical ClinicSan Marcos · 2 sites	-	7	13	Decision makers
1748	San Diego Arthritis Medical ClinicSan Diego · 3 sites	-	7	13	Decision makers
1749	Southern California TMS CenterPasadena · 6 sites	-	7	13	Decision makers
1750	Urology Associates of Central CaliforniaFresno · 1 site	-	7	13	Decision makers

Showing 1,701 to 1,750 of 10,378 medical groups in California

Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data

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