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, 801 to 850
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
801	Legacy MD Medical GroupEl Centro · 8 sites	-	22	46	Decision makers
802	ContinuEM Urgent CareLakewood · 5 sites	Parent on file	22	41	Decision makers
803	Care Partners California Medical PCCosta Mesa · 5 sites	Parent on file	22	37	Decision makers
804	Neurosurgical Associates of IrvineOrange · 4 sites	Parent on file	22	37	Decision makers
805	Pinnacle Health CareSalinas · 4 sites	Parent on file	22	31	Decision makers
806	Pacific Dermatology SpecialistsRolling Hills Estates · 9 sites	-	22	29	Decision makers
807	Dermatologist Medical Group of North CountyOceanside · 2 sites	-	22	27	Decision makers
808	Pontine Anesthesia Consultants (PAC)San Ramon · 4 sites	-	22	27	Decision makers
809	ForeFront RadiologyFresno · 3 sites	-	22	25	Decision makers
810	Concord Hospitalist GroupGlendale · 2 sites	-	22	24	Decision makers
811	Precision Medical Group, Inc.Santa Ana · 38 sites	-	22	24	Decision makers
812	Wound Physicians of California, P.C.Dinuba · 4 sites	-	22	23	Decision makers
813	Beverly Radiology Medical GroupLos Angeles · 60 sites	Parent on file	22	22	Decision makers
814	Valley Anesthesia Physicians Medical GroupIrvine · 1 site	-	22	22	Decision makers
815	Skin and Cancer InstituteSan Clemente · 45 sites	Parent on file	21	80	Decision makers
816	Senior DocOrange · 4 sites	Parent on file	21	78	Decision makers
817	Anesthesia Consultants of FresnoFresno · 11 sites	Parent on file	21	72	Decision makers
818	Napa County Health and Human Services AgencyNapa · 2 sites	Parent on file	21	70	Decision makers
819	Monterey Anesthesia ProfessionalsSalinas · 4 sites	Parent on file	21	58	Decision makers
820	90210 Surgery Medical CenterBeverly Hills · 5 sites	Parent on file	21	51	Decision makers
821	Psychiatric Centers at San DiegoSan Diego · 11 sites	-	21	51	Decision makers
822	Santa Barbara Neighborhood ClinicsSanta Barbara · 9 sites	Parent on file	21	47	Decision makers
823	Ventura Emergency PhysiciansVentura · 5 sites	-	21	47	Decision makers
824	UCLA Medical GroupLos Angeles · 9 sites	Parent on file	21	44	Decision makers
825	Mission Neighborhood Health CenterSan Francisco · 7 sites	Parent on file	21	42	Decision makers
826	Sierra Emergency Medical GroupSonora · 1 site	Parent on file	21	42	Decision makers
827	Excell Medical GroupParamount · 5 sites	Parent on file	21	38	Decision makers
828	COR Healthcare Medical AssociatesTorrance · 6 sites	-	21	31	Decision makers
829	Golden State Pediatrics and Family MedicineFontana · 6 sites	-	21	31	Decision makers
830	Anesthesia Care Consultants, Inc.Daly City · 3 sites	-	21	29	Decision makers
831	Pathway Medical GroupGarden Grove · 6 sites	-	21	29	Decision makers
832	Southern California Kidney ConsultantsGarden Grove · 4 sites	-	21	28	Decision makers
833	OC Surgeons, Saddleback Valley SurgicalMission Viejo · 5 sites	-	21	26	Decision makers
834	Seven Star Medical GroupHemet · 11 sites	-	21	26	Decision makers
835	Canyon Springs Medical GroupMoreno Valley · 3 sites	-	21	25	Decision makers
836	Los Angeles Bone and Joint InstituteEncino · 2 sites	-	21	25	Decision makers
837	Sierra Emergency Medical GroupPleasanton · 3 sites	Parent on file	21	25	Decision makers
838	UCLA Plastic Surgery AssociatesLos Angeles · 6 sites	Parent on file	21	25	Decision makers
839	CA Hospital Hospitalist Medical Group, Inc.Los Angeles · 1 site	-	21	24	Decision makers
840	Central California Hospital Medicine GroupFresno · 3 sites	-	21	23	Decision makers
841	Scenic Faculty Medical GroupModesto · 7 sites	-	21	23	Decision makers
842	Caremore Pediatric Hospitalist Medical GroupLos Angeles · 6 sites	Parent on file	21	22	Decision makers
843	Descanso Anesthesia GroupGlendale · 5 sites	-	21	22	Decision makers
844	Shasta Regional Medical GroupRedding · 11 sites	Parent on file	21	22	Decision makers
845	LGTC GroupSan Jose · 4 sites	Parent on file	20	140	Decision makers
846	PIH Health PhysiciansColorado Springs · 5 sites	Parent on file	20	104	Decision makers
847	Regional Anesthesia Associates, Inc.Bakersfield · 11 sites	Parent on file	20	86	Decision makers
848	County of San Luis Obispo Behavioral HealthSan Luis Obispo · 13 sites	Parent on file	20	84	Decision makers
849	Feather River Tribal Health, Inc.Oroville · 5 sites	Parent on file	20	75	Decision makers
850	Native American Health CenterOakland · 5 sites	Parent on file	20	70	Decision makers

Showing 801 to 850 of 10,378 medical groups in California

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

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