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, 751 to 800
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
751	Redding Rancheria Tribal Health CenterRedding · 9 sites	Parent on file	24	64	Decision makers
752	Alliance Medical CenterHealdsburg · 4 sites	Parent on file	24	59	Decision makers
753	Desert Orthopedic CenterRancho Mirage · 9 sites	-	24	56	Decision makers
754	Ravenswood Family Health NetworkEast Palo Alto · 7 sites	Parent on file	24	54	Decision makers
755	PREMIER Orthopaedic & Trauma SpecialistsPomona · 15 sites	-	24	53	Decision makers
756	Enloe Specialty PhysiciansChico · 4 sites	Parent on file	24	43	Decision makers
757	Redlands Family PracticeRedlands · 2 sites	Parent on file	24	42	Decision makers
758	VituityEmeryville · 10 sites	Parent on file	24	39	Decision makers
759	Brotman Medical Anesthesia Group/KJD Anesthesia AssociatesWoodland Hills · 5 sites	-	24	37	Decision makers
760	Pacific Paradise Emergency PhysiciansNational City · 3 sites	-	24	35	Decision makers
761	Family Care Specialists (FCS) Medical CorporationLos Angeles · 5 sites	Parent on file	24	33	Decision makers
762	NewportCare Medical GroupNewport Beach · 7 sites	-	24	32	Decision makers
763	West Coast Pulmonary & Sleep Disorders CenterOxnard · 3 sites	-	24	32	Decision makers
764	Apex Healthcare Medical CenterHemet · 6 sites	Parent on file	24	30	Decision makers
765	East La Emergency PhysiciansLos Angeles · 3 sites	-	24	30	Decision makers
766	Anesthesia Medical Group of Santa MariaSanta Maria · 2 sites	Parent on file	24	27	Decision makers
767	Benchmark Hospitalists & IntensivistsEl Segundo · 3 sites	Parent on file	24	27	Decision makers
768	Desert Physicians Medical GroupPalm Springs · 3 sites	-	24	27	Decision makers
769	UCI Health PhysiciansOrange · 3 sites	Parent on file	24	27	Decision makers
770	Hp Intensivist Medical Group, Inc.Los Angeles · 1 site	-	24	25	Decision makers
771	Inland Anesthesia Partners, Inc.Covina · 3 sites	-	24	25	Decision makers
772	Rocket DoctorSanta Monica · 2 sites	Parent on file	24	25	Decision makers
773	Torrance Radiology Medical GroupTorrance · 4 sites	Parent on file	24	25	Decision makers
774	ONRADRiverside · 80 sites	Parent on file	24	24	Decision makers
775	Pacific HealthWorks, LLCEl Segundo · 4 sites	Parent on file	24	24	Decision makers
776	Sol RadiologyVictorville · 6 sites	Parent on file	24	24	Decision makers
777	Sol RadiologyVictorville · 11 sites	Parent on file	24	24	Decision makers
778	Families Together of Orange CountyTustin · 5 sites	Parent on file	23	109	Decision makers
779	Northern Valley Indian HealthWillows · 11 sites	Parent on file	23	107	Decision makers
780	Potawot Health VillageArcata · 13 sites	Parent on file	23	80	Decision makers
781	Arroyo Vista Family Health CenterLos Angeles · 5 sites	Parent on file	23	66	Decision makers
782	Southern California Family Medical CenterEl Monte · 4 sites	-	23	50	Decision makers
783	Summit Family Health CenterFontana · 6 sites	-	23	50	Decision makers
784	Dignity Health, Mark Twain Medical CenterSan Andreas · 4 sites	Parent on file	23	48	Decision makers
785	Providence Queen of the Valley Medical CenterNapa · 10 sites	Parent on file	23	37	Decision makers
786	Skin & Beauty Center (SBC Dermatology)Burbank · 13 sites	Parent on file	23	36	Decision makers
787	Sierra Hematology & OncologyCarmichael · 6 sites	-	23	32	Decision makers
788	Touro University Medical GroupStockton · 3 sites	-	23	25	Decision makers
789	Adventist Health Simi Valley Medical CenterSimi Valley · 1 site	Parent on file	23	24	Decision makers
790	Turiya AnesthesiaCovina · 3 sites	Parent on file	23	24	Decision makers
791	Benchmark Hospitalists & IntensivistsEscondido · 5 sites	Parent on file	23	23	Decision makers
792	Tarzana Anesthesia Medical Group, Inc.Tarzana · 1 site	-	23	23	Decision makers
793	Housecall Doctors Medical GroupLong Beach · 6 sites	-	22	136	Decision makers
794	Haight Ashbury Medical ClinicsSan Francisco · 10 sites	Parent on file	22	112	Decision makers
795	PIH Health Physicians (John M. Geiss, DO)Santa Ana · 22 sites	Parent on file	22	112	Decision makers
796	Lake County Tribal HealthLakeport · 3 sites	Parent on file	22	70	Decision makers
797	Baywell HealthOakland · 4 sites	Parent on file	22	69	Decision makers
798	Via Care Community Health CenterLos Angeles · 12 sites	Parent on file	22	65	Decision makers
799	Valley Community HealthcareNorth Hollywood · 3 sites	Parent on file	22	59	Decision makers
800	Allied Emergency PhysiciansSimi Valley · 4 sites	-	22	49	Decision makers

Showing 751 to 800 of 10,378 medical groups in California

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

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