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, 851 to 900
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
851	Circle MedicalSan Francisco · 16 sites	Parent on file	20	69	Decision makers
852	Azul VisionPasadena · 27 sites	Parent on file	20	67	Decision makers
853	Hope Counseling CenterSan Jose · 1 site	Parent on file	20	63	Decision makers
854	Opsam HealthSan Diego · 10 sites	Parent on file	20	62	Decision makers
855	Citrus Valley Medical AssociatesCorona · 7 sites	-	20	42	Decision makers
856	Arcadia Intensivist Group Inc.Arcadia · 7 sites	-	20	40	Decision makers
857	Central Valley Indian Health, Inc.Clovis · 7 sites	Parent on file	20	40	Decision makers
858	Synergy Observation Specialists PCSimi Valley · 4 sites	-	20	39	Decision makers
859	Pacific Cancer CareMonterey · 3 sites	-	20	32	Decision makers
860	SCCT Medical GroupValencia · 4 sites	Parent on file	20	30	Decision makers
861	Aligned GeriatricsSan Diego · 2 sites	-	20	27	Decision makers
862	Professional Anesthesia AssociatesSan Pedro · 4 sites	-	20	27	Decision makers
863	Silicon Valley Anesthesia AssociatesSan Jose · 5 sites	-	20	27	Decision makers
864	Pacific Rim PathologyPasadena · 7 sites	Parent on file	20	23	Decision makers
865	Retinal Consultants Medical GroupSacramento · 20 sites	-	20	23	Decision makers
866	Urological Surgeons of Northern CaliforniaLos Gatos · 6 sites	-	20	23	Decision makers
867	Anesthesia Partners of North Valley Medical AssociatesLancaster · 4 sites	-	20	22	Decision makers
868	Valley Obstetrics and Gynecology Medical Group IncColton · 1 site	-	20	22	Decision makers
869	Diagnostic Medical Group of Southern CaliforniaSan Gabriel · 4 sites	Parent on file	20	20	Decision makers
870	East Bay Cardiovascular & Thoracic AssociatesDanville · 3 sites	-	20	20	Decision makers
871	Newport Critical Care PhysiciansNewport Beach · 3 sites	-	20	20	Decision makers
872	Pier Anesthesia Group, Inc.Chino · 4 sites	-	20	20	Decision makers
873	Vesta Radiology ServicesGlendale · 26 sites	Parent on file	20	20	Decision makers
874	HeadlightSan Diego · 9 sites	Parent on file	19	235	Decision makers
875	Imperial County Behavioral Health ServicesEl Centro · 4 sites	Parent on file	19	118	Decision makers
876	APA Medical Group, Inc.Los Angeles · 13 sites	Parent on file	19	107	Decision makers
877	All Inclusive Medical Services, Inc.Carmichael · 7 sites	-	19	80	Decision makers
878	Doctor On DemandSan Francisco · 11 sites	Parent on file	19	57	Decision makers
879	Heritage Victor Valley Medical GroupVictorville · 6 sites	Parent on file	19	53	Decision makers
880	SNF Specialists Medical CorporationFairfield · 4 sites	-	19	53	Decision makers
881	Southern California Emergency Medical GroupSan Pedro · 7 sites	Parent on file	19	52	Decision makers
882	Baz Allergy, Asthma & Sinus CenterFresno · 19 sites	Parent on file	19	50	Decision makers
883	South Coast Emergency Medical GroupAnaheim · 4 sites	Parent on file	19	39	Decision makers
884	Clínica Monseñor Oscar A. RomeroLos Angeles · 2 sites	Parent on file	19	37	Decision makers
885	San Fernando Valley Medical Group IncSherman Oaks · 4 sites	-	19	37	Decision makers
886	Jovive Wound CareEmeryville · 7 sites	Parent on file	19	36	Decision makers
887	Miramar Eye Specialists Medical GroupVentura · 9 sites	Parent on file	19	30	Decision makers
888	Turiya AnesthesiaNorwalk · 7 sites	Parent on file	19	30	Decision makers
889	Center for Advanced Cardiac and Vascular InterventionsLos Angeles · 3 sites	-	19	27	Decision makers
890	Luskin Orthopaedic Institute for ChildrenLos Angeles · 2 sites	Parent on file	19	27	Decision makers
891	AllSafe Medical GroupDowney · 4 sites	-	19	25	Decision makers
892	SCKE HealthLaguna Hills · 3 sites	-	19	25	Decision makers
893	Analytic Pathology Medical GroupLa Mesa · 7 sites	-	19	21	Decision makers
894	Association Of South Bay SurgeonsTorrance · 1 site	Parent on file	19	21	Decision makers
895	San Diego Family DermatologyNational City · 5 sites	-	19	21	Decision makers
896	St Francis Radiology Medical GroupLynwood · 7 sites	-	19	21	Decision makers
897	UCLA Surgical Oncology AssociatesLos Angeles · 17 sites	Parent on file	19	21	Decision makers
898	Anesthesiologists' Medical Group of San Francisco, Inc.San Francisco · 3 sites	-	19	20	Decision makers
899	Core Anesthesia Provider Services PCStockton · 4 sites	-	19	20	Decision makers
900	Inland Physicians Medical GroupMontclair · 5 sites	-	19	20	Decision makers

Showing 851 to 900 of 10,378 medical groups in California

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

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