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, 351 to 400
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
351	Valley Presbyterian Emergency Medical AssociatesVannuys · 10 sites	-	65	120	Decision makers
352	FocusHealthSan Diego · 6 sites	-	65	83	Decision makers
353	KC Tan MD Medical CorporationMonterey Park · 29 sites	Parent on file	65	69	Decision makers
354	Washington Health Medical GroupFremont · 72 sites	Parent on file	65	67	Decision makers
355	Delta Radiology Medical Group, Inc.Lodi · 16 sites	Parent on file	65	66	Decision makers
356	Camarena HealthMadera · 30 sites	Parent on file	64	195	Decision makers
357	Rancho Family Medical GroupTemecula · 23 sites	Parent on file	64	145	Decision makers
358	GEM Medical Group (GEM, Emergency Medicine Providers)Whittier · 6 sites	Parent on file	64	100	Decision makers
359	ApolloMed HospitalistsAlhambra · 8 sites	Parent on file	64	79	Decision makers
360	Good Medicine, Inc.Encinitas · 7 sites	-	64	69	Decision makers
361	Epic CareAntioch · 18 sites	-	63	95	Decision makers
362	Tulare County Health & Human Services Agency (HHSA)Visalia · 18 sites	Parent on file	62	125	Decision makers
363	Barton Memorial HospitalSouth Lake Tahoe · 18 sites	Parent on file	62	102	Decision makers
364	Hazel Hawkins Memorial HospitalHollister · 6 sites	Parent on file	62	79	Decision makers
365	San Dimas Community HospitalSan Dimas · 9 sites	Parent on file	62	65	Decision makers
366	Talbert Anesthesia GroupLos Alamitos · 12 sites	Parent on file	62	63	Decision makers
367	Central City Community Health CenterMonterey Park · 17 sites	Parent on file	61	135	Decision makers
368	La Maestra Community Health CentersSan Diego · 16 sites	Parent on file	61	130	Decision makers
369	High Desert Medical GroupLancaster · 7 sites	Parent on file	61	128	Decision makers
370	UCI Health PhysiciansOrange · 5 sites	Parent on file	61	78	Decision makers
371	El Camino HealthLos Gatos · 9 sites	Parent on file	61	76	Decision makers
372	Coachella Valley AnesthesiaBakersfield · 17 sites	Parent on file	60	172	Decision makers
373	Skilled BiologicsSacramento · 4 sites	-	60	73	Decision makers
374	VituityEmeryville · 296 sites	Parent on file	60	70	Decision makers
375	East Bay Anesthesiology Medical GroupOakland · 9 sites	Parent on file	60	62	Decision makers
376	Corona Anesthesia Group IncCorona · 9 sites	-	60	60	Decision makers
377	TrueCareSan Marcos · 15 sites	Parent on file	59	181	Decision makers
378	Marin Community ClinicsNovato · 12 sites	Parent on file	59	106	Decision makers
379	Temecula Valley Emergency PhysiciansTemecula · 10 sites	-	59	92	Decision makers
380	Community Research FoundationSan Diego · 19 sites	Parent on file	58	133	Decision makers
381	UCSF Clinical Integrated PartnersSan Francisco · 5 sites	Parent on file	58	103	Decision makers
382	Centric HealthBakersfield · 16 sites	Parent on file	58	97	Decision makers
383	Columbia Emergency Medical GroupLong Beach · 8 sites	-	58	96	Decision makers
384	Emanate Health Medical GroupCovina · 11 sites	Parent on file	58	83	Decision makers
385	Landmark Anesthesia Medical GroupLynwood · 4 sites	Parent on file	58	81	Decision makers
386	Anesthesia Specialists of Orange County, Inc.Anaheim · 7 sites	-	58	68	Decision makers
387	Valley Hospitalist Medical GroupVisalia · 4 sites	-	58	64	Decision makers
388	San Antonio Radiological Medical GroupUpland · 58 sites	-	58	59	Decision makers
389	Anesthesia ConsultantsEscondido · 7 sites	Parent on file	58	58	Decision makers
390	Sutter Santa Rosa Regional HospitalSanta Rosa · 22 sites	Parent on file	57	153	Decision makers
391	AIDS Healthcare FoundationLos Angeles · 82 sites	Parent on file	57	131	Decision makers
392	Huntington Park Emergency PhysiciansHuntington Park · 8 sites	Parent on file	57	91	Decision makers
393	VituityEmeryville · 7 sites	Parent on file	57	87	Decision makers
394	Emergency Physicians Of Orange CountyNewport Beach · 9 sites	Parent on file	57	81	Decision makers
395	Newport Harbor Radiology AssociatesNewport Beach · 11 sites	-	57	71	Decision makers
396	UCLA Division of DermatologyLos Angeles · 12 sites	Parent on file	57	62	Decision makers
397	Tower Imaging Medical GroupLos Angeles · 63 sites	-	57	57	Decision makers
398	X-Ray Medical GroupLa Mesa · 43 sites	Parent on file	57	57	Decision makers
399	Bay Area Community HealthFremont · 16 sites	Parent on file	56	178	Decision makers
400	Momentum for HealthSan Jose · 21 sites	Parent on file	56	114	Decision makers

Showing 351 to 400 of 10,378 medical groups in California

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

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