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, 6,351 to 6,400
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
6351	WellCare Valley Medical GroupGranada Hills · 1 site	-	1	3	Decision makers
6352	Wello Wound CarePorter Ranch · 1 site	-	1	3	Decision makers
6353	Western Health CareLos Angeles · 2 sites	Parent on file	1	3	Decision makers
6354	Western Neurological AssociatesBurbank · 1 site	-	1	3	Decision makers
6355	Westminster Medical OfficeWestminster · 1 site	Parent on file	1	3	Decision makers
6356	White Ink Brain ClinicSan Diego · 1 site	-	1	3	Decision makers
6357	Wirsa WellnessManteca · 1 site	-	1	3	Decision makers
6358	WoundologyPomona · 1 site	-	1	3	Decision makers
6359	WTFootcareRancho Cucamonga · 2 sites	-	1	3	Decision makers
6360	Yamin Shwe, MD Medical CorporationLos Alamitos · 2 sites	-	1	3	Decision makers
6361	Yaron Friedman MD, Inc.Walnut Creek · 1 site	-	1	3	Decision makers
6362	Zhuo Philip Yue Medical GroupMonterey Park · 1 site	-	1	3	Decision makers
6363	360 Sports, Spine and WellnessHuntington Beach · 1 site	-	1	2	Decision makers
6364	4Kids Urgent Care Medical CenterFresno · 2 sites	-	1	2	Decision makers
6365	A&E Professional Medical Group And Nursing CorporationHuntington Park · 1 site	-	1	2	Decision makers
6366	AAA Medical GroupGarden Grove · 1 site	-	1	2	Decision makers
6367	Abbas Kashani MDManteca · 1 site	Parent on file	1	2	Decision makers
6368	Abel Cesar Toledo MDChula Vista · 1 site	-	1	2	Decision makers
6369	Above HealthFullerton · 1 site	-	1	2	Decision makers
6370	Abrishami DermLos Angeles · 3 sites	-	1	2	Decision makers
6371	Abundant HealthTemecula · 1 site	Parent on file	1	2	Decision makers
6372	Ace Gastroenterology AssociatesRialto · 1 site	-	1	2	Decision makers
6373	ActivBody Physical Therapy, Inc.Huntington Beach · 2 sites	-	1	2	Decision makers
6374	Adeyemo Medical CorporationHemet · 1 site	-	1	2	Decision makers
6375	Adolph J. Nava M.D., Inc.Visalia · 1 site	Parent on file	1	2	Decision makers
6376	Adult & Children Allergy Asthma CenterPasadena · 1 site	-	1	2	Decision makers
6377	Adult Heart Clinic, Inc.Glendora · 1 site	-	1	2	Decision makers
6378	Advanced Cardiovascular InstituteLivermore · 1 site	-	1	2	Decision makers
6379	Advanced Care OrthopedicsSouth Gate · 1 site	-	1	2	Decision makers
6380	Advanced Center For Neurology & HeadacheValencia · 1 site	-	1	2	Decision makers
6381	Advanced Endoscopy ConsultantsSantee · 1 site	-	1	2	Decision makers
6382	Advanced GastroenterologyThousand Oaks · 1 site	Parent on file	1	2	Decision makers
6383	Advanced Internal Medicine of North CountyOceanside · 2 sites	-	1	2	Decision makers
6384	Advanced Mobile Wound CareSherman Oaks · 1 site	-	1	2	Decision makers
6385	Advanced Orthopedics & Sports MedicineEncinitas · 1 site	-	1	2	Decision makers
6386	Advanced Pain AssociatesEl Centro · 1 site	Parent on file	1	2	Decision makers
6387	Advanced Pain SolutionsFresno · 1 site	-	1	2	Decision makers
6388	Advanced Physical MedicineOakland · 1 site	-	1	2	Decision makers
6389	Advanced Vein CenterOrange · 2 sites	-	1	2	Decision makers
6390	Advanced Wound Care SpecialistsRancho Cucamonga · 1 site	-	1	2	Decision makers
6391	Advantage Health CenterChatsworth · 1 site	-	1	2	Decision makers
6392	Aesthetic Eye CareSan Luis Obispo · 1 site	-	1	2	Decision makers
6393	Affiliated Neurology CenterMission Viejo · 1 site	Parent on file	1	2	Decision makers
6394	After Hours Medical GroupWhittier · 1 site	Parent on file	1	2	Decision makers
6395	Agah MedicalMountain View · 2 sites	Parent on file	1	2	Decision makers
6396	Aissatou Haman, MDSan Francisco · 2 sites	Parent on file	1	2	Decision makers
6397	Al Amal Medical ClinicPico Rivera · 1 site	-	1	2	Decision makers
6398	Alamar Medical GroupLa Mesa · 1 site	-	1	2	Decision makers
6399	Alfaro-McField Medical Clinic IncSan Bernardino · 1 site	-	1	2	Decision makers
6400	Ali R. Namazie, MDEncino · 1 site	-	1	2	Decision makers

Showing 6,351 to 6,400 of 10,378 medical groups in California

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

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