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, 551 to 600
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
551	Tower Imaging Medical GroupSanta Monica · 7 sites	-	40	40	Decision makers
552	Inland Psychiatric Medical GroupRedlands · 38 sites	-	39	201	Decision makers
553	Solano County Health and Social ServicesFairfield · 28 sites	Parent on file	39	183	Decision makers
554	County of Santa Cruz Health Services Agency (HSA)Santa Cruz · 9 sites	Parent on file	39	130	Decision makers
555	UCSF Medical GroupSan Francisco · 10 sites	Parent on file	39	119	Decision makers
556	Elica Health CentersSacramento · 15 sites	Parent on file	39	111	Decision makers
557	Synergy Orthopedic Specialists Medical GroupSan Diego · 20 sites	-	39	90	Decision makers
558	Butte County Department of Behavioral HealthChico · 15 sites	Parent on file	39	87	Decision makers
559	Los Angeles Cancer NetworkGlendale · 25 sites	-	39	71	Decision makers
560	Golden West Emergency Medical AssociatesMonterey Park · 5 sites	Parent on file	39	56	Decision makers
561	Eastern Plumas Health CarePortola · 2 sites	Parent on file	39	55	Decision makers
562	AnesthesiaWorksEl Segundo · 8 sites	Parent on file	39	45	Decision makers
563	XiMED HospitalistsLa Jolla · 5 sites	Parent on file	39	43	Decision makers
564	Chemehuevi Health ClinicHavasu Lake · 3 sites	Parent on file	39	42	Decision makers
565	Pacific Inpatient PhysiciansVentura · 3 sites	Parent on file	39	42	Decision makers
566	Pacific ClinicsLos Gatos · 35 sites	Parent on file	38	364	Decision makers
567	Happier LivingWest Hollywood · 5 sites	-	38	179	Decision makers
568	MCHC Health CentersUkiah · 9 sites	Parent on file	38	121	Decision makers
569	Pacific Heritage Medical GroupWestlake Village · 9 sites	-	38	81	Decision makers
570	Clinica de Salud del Valle de SalinasSalinas · 17 sites	Parent on file	38	78	Decision makers
571	Epic Medical GroupSherman Oaks · 7 sites	Parent on file	38	68	Decision makers
572	Altura Centers for HealthTulare · 11 sites	Parent on file	38	66	Decision makers
573	Ignite Emergency PhysiciansVictorville · 4 sites	-	38	64	Decision makers
574	Shen Medical GroupAlhambra · 6 sites	Parent on file	38	63	Decision makers
575	Chinese HospitalSan Francisco · 7 sites	Parent on file	38	56	Decision makers
576	Cedar Springs Hospitalist Medical Group IncGlendale · 7 sites	-	38	53	Decision makers
577	AnesthesiaWorksEl Segundo · 8 sites	Parent on file	38	47	Decision makers
578	Precision Psychiatric ServicesSan Jose · 9 sites	Parent on file	38	44	Decision makers
579	Crescent Wound CareLa Jolla · 5 sites	Parent on file	38	42	Decision makers
580	Peninsula Hospitalist AssociatesBurlingame · 2 sites	-	38	39	Decision makers
581	Central Coast Emergency PhysiciansTempleton · 8 sites	Parent on file	38	38	Decision makers
582	Chapa-De Indian HealthAuburn · 8 sites	Parent on file	37	86	Decision makers
583	Pleasanton Emergency Medical GroupPleasanton · 6 sites	Parent on file	37	65	Decision makers
584	Willow Brook Critical Care Medical Group IncGlendale · 7 sites	-	37	65	Decision makers
585	Riverside Emergency Physicians Medical GroupRiverside · 6 sites	Parent on file	37	57	Decision makers
586	AnesthesiaWorksEl Segundo · 6 sites	Parent on file	37	46	Decision makers
587	Sunrise Medical AssociatesCorona · 4 sites	Parent on file	37	46	Decision makers
588	Beach Emergency Medical AssociatesHuntington Beach · 3 sites	Parent on file	37	41	Decision makers
589	San Diego Imaging Medical GroupSan Diego · 3 sites	-	37	37	Decision makers
590	SFUPG Medical GroupSan Francisco · 5 sites	-	37	37	Decision makers
591	CommuniCare+OLEDavis · 9 sites	Parent on file	36	104	Decision makers
592	East Valley Community Health CenterWest Covina · 9 sites	Parent on file	36	95	Decision makers
593	Imperial Valley Family Care Medical GroupImperial · 22 sites	-	36	86	Decision makers
594	Comprehensive Community Health CentersGlendale · 6 sites	Parent on file	36	82	Decision makers
595	Gracelight Community HealthLos Angeles · 7 sites	Parent on file	36	78	Decision makers
596	Northeast Community ClinicsAlhambra · 9 sites	Parent on file	36	77	Decision makers
597	Woodland Emergency Physicians Medical Group, Inc.Woodland · 6 sites	-	36	69	Decision makers
598	Primary Medical GroupVentura · 14 sites	Parent on file	36	62	Decision makers
599	ApolloMD/Santa Ynez River PhysiciansLompoc · 4 sites	Parent on file	36	58	Decision makers
600	California Cancer Associates for Research and Excellence (cCARE)Fresno · 13 sites	-	36	58	Decision makers

Showing 551 to 600 of 10,378 medical groups in California

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

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