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, 3,301 to 3,350
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
3301	HLMG Pain Management, Inc.Glendale · 1 site	-	3	4	Decision makers
3302	Holistic Nursing MedicalOntario · 3 sites	-	3	4	Decision makers
3303	ICPMG Walk-In Clinic (Imperial County Physicians Medical Group)El Centro · 1 site	Parent on file	3	4	Decision makers
3304	Inland Cancer CenterSan Bernardino · 2 sites	-	3	4	Decision makers
3305	Institute of Plant-Based MedicineNewport Beach · 2 sites	-	3	4	Decision makers
3306	JHS Medical CenterGlendale · 1 site	-	3	4	Decision makers
3307	Krishna J Mohan MD INCCovina · 2 sites	Parent on file	3	4	Decision makers
3308	L.A. Sinus & Allergy SpecialistsLos Angeles · 1 site	-	3	4	Decision makers
3309	LA Community Health CenterVannuys · 1 site	Parent on file	3	4	Decision makers
3310	LA Eye Medical GroupLos Angeles · 1 site	-	3	4	Decision makers
3311	Lake Elsinore Clinica Medica FamiliarLake Elsinore · 1 site	Parent on file	3	4	Decision makers
3312	Leo Tanaka MD IncLa Mesa · 2 sites	-	3	4	Decision makers
3313	Linda VisionMonterey Park · 1 site	-	3	4	Decision makers
3314	Medical Laboratory Services Medical Group, Inc.Wildomar · 2 sites	Parent on file	3	4	Decision makers
3315	Mind Space KetamineLaguna Beach · 1 site	-	3	4	Decision makers
3316	Monterey Bay VascularAptos · 5 sites	-	3	4	Decision makers
3317	Neuron Medical CorporationThousand Oaks · 2 sites	-	3	4	Decision makers
3318	North Valley Eye Medical GroupMission Hills · 3 sites	Parent on file	3	4	Decision makers
3319	Northern California Pain SpecialistsSan Jose · 1 site	-	3	4	Decision makers
3320	Nova Eye InstituteValencia · 1 site	-	3	4	Decision makers
3321	NuVation Pain GroupBuena Park · 2 sites	-	3	4	Decision makers
3322	Oasis Advanced GastroenterologyPalm Springs · 3 sites	-	3	4	Decision makers
3323	Olde Del Mar SurgicalLa Jolla · 2 sites	-	3	4	Decision makers
3324	Orange County Vascular Access CenterGarden Grove · 2 sites	Parent on file	3	4	Decision makers
3325	Orange County Vascular SpecialistsNewport Beach · 1 site	-	3	4	Decision makers
3326	Osato Medical ClinicTorrance · 1 site	-	3	4	Decision makers
3327	Pacific Medical GroupLos Angeles · 3 sites	-	3	4	Decision makers
3328	Pacifica Center for Plastic SurgeryCamarillo · 1 site	-	3	4	Decision makers
3329	Pacifica OrthopedicsHuntington Beach · 1 site	-	3	4	Decision makers
3330	Pathology Medical Group Of RiversideRiverside · 1 site	-	3	4	Decision makers
3331	Pediatric Infectology GroupLong Beach · 1 site	Parent on file	3	4	Decision makers
3332	Peninsula Dermatologic SurgeryMenlo Park · 1 site	-	3	4	Decision makers
3333	Peninsula Laser Eye Medical GroupMountain View · 1 site	-	3	4	Decision makers
3334	Perri & Siddique Spine SurgeryLos Angeles · 1 site	Parent on file	3	4	Decision makers
3335	Preventive Medical Center of MarinSan Rafael · 2 sites	-	3	4	Decision makers
3336	Primary Care at Home, INC.Oakland · 1 site	-	3	4	Decision makers
3337	Prime 5 Medical GroupLos Angeles · 1 site	-	3	4	Decision makers
3338	Private Physicians Medical AssociatesNewport Beach · 1 site	-	3	4	Decision makers
3339	Prudential Health CareCerritos · 1 site	Parent on file	3	4	Decision makers
3340	Rebecca Fitzgerald MDLos Angeles · 1 site	-	3	4	Decision makers
3341	Reddy Medical Group IncFresno · 1 site	Parent on file	3	4	Decision makers
3342	Regional Radiological Associates A Medical GroupRedding · 1 site	-	3	4	Decision makers
3343	Rose Women's HealthArcadia · 1 site	-	3	4	Decision makers
3344	RPM Care Coordination, PCEl Segundo · 1 site	-	3	4	Decision makers
3345	Samy Metyas, M.D., Inc.Covina · 1 site	-	3	4	Decision makers
3346	San Diego Gastroenterology AssociatesLa Mesa · 2 sites	-	3	4	Decision makers
3347	San Diego Institute of Gastroenterology & NutritionSan Diego · 2 sites	-	3	4	Decision makers
3348	San Francisco Campus for Jewish LivingSan Francisco · 1 site	Parent on file	3	4	Decision makers
3349	Sani Eye CenterTempleton · 3 sites	-	3	4	Decision makers
3350	Santa Barbara DoctorsSanta Barbara · 2 sites	-	3	4	Decision makers

Showing 3,301 to 3,350 of 10,378 medical groups in California

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

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