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, 1,001 to 1,050
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1001	El Camino Medical AssociatesLos Gatos · 6 sites	Parent on file	16	20	Decision makers
1002	Health Allies Clinic IncSan Diego · 2 sites	-	16	20	Decision makers
1003	Mineral King RadiologyVisalia · 5 sites	-	16	20	Decision makers
1004	Specialty Eye Care Medical CenterGlendale · 3 sites	-	16	20	Decision makers
1005	Superclinic Professionals Medical CorpNorth Hollywood · 3 sites	-	16	20	Decision makers
1006	West Coast NeurologySouth Pasadena · 4 sites	-	16	20	Decision makers
1007	Advanced Cardiovascular SpecialistsMountain View · 2 sites	Parent on file	16	18	Decision makers
1008	Coastal Pulmonary AssociatesEncinitas · 5 sites	-	16	18	Decision makers
1009	Prestige Pulmonary Consultants IncMonterey Park · 1 site	-	16	18	Decision makers
1010	Murrieta Valley Surgery AssociatesWildomar · 1 site	-	16	17	Decision makers
1011	Retina Vitreous Associates Medical GroupLos Angeles · 7 sites	-	16	17	Decision makers
1012	San Pedro Hospitalist Medical GroupEl Segundo · 2 sites	-	16	17	Decision makers
1013	Springhill Medical GroupPittsburg · 2 sites	Parent on file	16	17	Decision makers
1014	Centinela Medical GroupInglewood · 2 sites	-	16	16	Decision makers
1015	Muir Pulmonary Critical Care and Sleep MedicineWalnut Creek · 2 sites	-	16	16	Decision makers
1016	UCLA Health, Torrance Skypark Specialty CareTorrance · 3 sites	Parent on file	16	16	Decision makers
1017	White Memorial GYNLos Angeles · 2 sites	Parent on file	16	16	Decision makers
1018	Blue Stone Health & WellnessWeimar · 4 sites	Parent on file	15	44	Decision makers
1019	Center for Family Health & EducationVannuys · 9 sites	Parent on file	15	43	Decision makers
1020	Priority Urgent CareBakersfield · 8 sites	Parent on file	15	42	Decision makers
1021	UCLA Medical GroupLos Angeles · 6 sites	Parent on file	15	41	Decision makers
1022	New Foundation Medical GroupSanta Ana · 3 sites	-	15	40	Decision makers
1023	Coastal Health AlliancePoint Reyes Station · 3 sites	Parent on file	15	39	Decision makers
1024	Virta HealthSan Francisco · 2 sites	-	15	36	Decision makers
1025	Modesto Surgical AssociatesModesto · 4 sites	-	15	35	Decision makers
1026	UCI Plastic SurgeryOrange · 2 sites	Parent on file	15	34	Decision makers
1027	UMMA Community ClinicLos Angeles · 5 sites	Parent on file	15	34	Decision makers
1028	Cajon Medical GroupRedlands · 19 sites	-	15	33	Decision makers
1029	Clinica Medica FamiliarCorona · 9 sites	-	15	30	Decision makers
1030	Huntington OrthopedicsPasadena · 5 sites	-	15	30	Decision makers
1031	Ocean Skin and Vein InstituteTustin · 4 sites	-	15	26	Decision makers
1032	Orthopedic Trauma Surgeons of Northern CaliforniaCarmichael · 3 sites	-	15	26	Decision makers
1033	De Anza Orthopedic Medical GroupMoreno Valley · 7 sites	Parent on file	15	25	Decision makers
1034	Jiva HealthConcord · 5 sites	-	15	23	Decision makers
1035	Mayflower Medical GroupWest Covina · 7 sites	-	15	22	Decision makers
1036	The Neurology GroupPomona · 3 sites	-	15	22	Decision makers
1037	West Coast OB/GYNSan Diego · 1 site	-	15	22	Decision makers
1038	Central Coast Orthopedic Medical GroupSanta Maria · 3 sites	-	15	21	Decision makers
1039	Central Coast Family CareSana Maria · 9 sites	-	15	19	Decision makers
1040	Hill HealthOakland · 3 sites	Parent on file	15	19	Decision makers
1041	Mt. San Antonio GardensPomona · 4 sites	Parent on file	15	19	Decision makers
1042	OSO Home Care, Inc.Irvine · 4 sites	Parent on file	15	19	Decision makers
1043	Talia Medical GroupTemecula · 2 sites	Parent on file	15	18	Decision makers
1044	Advantage HospitalistsAgoura Hills · 3 sites	-	15	17	Decision makers
1045	Bear Creek AnesthesiologyMerced · 4 sites	-	15	17	Decision makers
1046	First Medical CenterCerritos · 5 sites	Parent on file	15	17	Decision makers
1047	Roseville CardiologyRoseville · 2 sites	-	15	17	Decision makers
1048	Sacramento Heart & Vascular Medical AssociatesSacramento · 4 sites	-	15	17	Decision makers
1049	San Jose GastroenterologySan Jose · 3 sites	-	15	17	Decision makers
1050	Children's Hospital Los Angeles Medical GroupLos Angeles · 2 sites	Parent on file	15	16	Decision makers

Showing 1,001 to 1,050 of 10,378 medical groups in California

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

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