Updated October 2026

Largest primary care groups in California

Medical group directory
California
Primary care

Groups: 3,969
Internal Medicine groups: 1,835
Family Medicine groups: 1,169
Internal medicine specialists: 22,438
Family physicians: 4,605

There are 3,969 primary care groups in California with a Medicare PAC ID: 1,835 internal medicine, 1,169 family medicine, 619 nurse practitioner, 207 physician assistant and 138 general practice. The Permanente Medical Group, Inc. is the largest internal medicine group, with 3,018 internal medicine specialists, and MemorialCare Medical Group the largest family medicine group, with 247 family physicians.

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The Permanente Medical Group, Inc. is the largest primary care 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. 119 California groups have 100 or more physicians.

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Primary care groups in California, ranked by physicians, 3,301 to 3,350
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
3301	Heartstone CA Health Provider IncLos Angeles · 1 site	Parent on file	1	2	Decision makers
3302	Heather Shenkman MDTarzana · 1 site	-	1	2	Decision makers
3303	Hee Yong Oh MD IncWest Covina · 2 sites	-	1	2	Decision makers
3304	Herr Kostic Medical GroupBermuda Dunes · 1 site	Parent on file	1	2	Decision makers
3305	High Desert Internal MedicineHesperia · 2 sites	Parent on file	1	2	Decision makers
3306	Honest Cardiology, Inc.Montrose · 1 site	-	1	2	Decision makers
3307	Hong S. Kim, M.D., Inc.Garden Grove · 1 site	Parent on file	1	2	Decision makers
3308	Hope Family MedicineNorthridge · 1 site	-	1	2	Decision makers
3309	Hope Professional Medical Group & Nursing CorporationEl Segundo · 1 site	-	1	2	Decision makers
3310	Horizon Wound SpecialistsNorthridge · 1 site	-	1	2	Decision makers
3311	Hospice of San JoaquinStockton · 1 site	Parent on file	1	2	Decision makers
3312	Hrachya Paruyryan, MDGlendale · 1 site	-	1	2	Decision makers
3313	Huong T Nguyen MDSan Diego · 1 site	Parent on file	1	2	Decision makers
3314	Huy Dao, DOTurlock · 3 sites	Parent on file	1	2	Decision makers
3315	Idyllwild Health CenterIdyllwild · 1 site	-	1	2	Decision makers
3316	IMD Medical Group Adult & Senior Health ClinicLos Angeles · 1 site	-	1	2	Decision makers
3317	Inland Empire Extra CareRancho Cucamonga · 1 site	Parent on file	1	2	Decision makers
3318	Innovative Medical CareGlendale · 1 site	-	1	2	Decision makers
3319	Integrity Wound SolutionsMerced · 1 site	-	1	2	Decision makers
3320	Intercare Medical ClinicWestminster · 1 site	-	1	2	Decision makers
3321	Intercommunity Medical GroupFairfield · 2 sites	Parent on file	1	2	Decision makers
3322	J. Robert Evans, M.D. P.C.San Bernardino · 1 site	Parent on file	1	2	Decision makers
3323	Jacob Ahdoot, MDLos Angeles · 1 site	-	1	2	Decision makers
3324	Jaga Medical Group, Inc.Eagle Rock · 1 site	-	1	2	Decision makers
3325	Jagdeep S. Tung, MDManhattan Beach · 1 site	-	1	2	Decision makers
3326	Jahandar R Saleh MDNorthridge · 1 site	-	1	2	Decision makers
3327	James Liu, MDSan Gabriel · 1 site	Parent on file	1	2	Decision makers
3328	James Song, MD Inc.Hacienda Heights · 1 site	Parent on file	1	2	Decision makers
3329	Jeffrey E. Galpin, MDTarzana · 1 site	-	1	2	Decision makers
3330	Jeffrey R. Polito, MDSanta Barbara · 1 site	-	1	2	Decision makers
3331	Jeffrey S. Goodman, MDLos Angeles · 1 site	-	1	2	Decision makers
3332	Jennifer Ross M.D.San Francisco · 1 site	-	1	2	Decision makers
3333	Johnny A Liquete MDMoreno Valley · 1 site	-	1	2	Decision makers
3334	Jose Fernando Velasquez Saldarriaga MDLaguna Hills · 1 site	-	1	2	Decision makers
3335	Joshua Medical GroupPalmdale · 2 sites	-	1	2	Decision makers
3336	Joshua Wolfsohn, DOCamarillo · 1 site	-	1	2	Decision makers
3337	Junix MedicalMontclair · 2 sites	-	1	2	Decision makers
3338	Kalpana Natrajan MD IncSan Diego · 1 site	-	1	2	Decision makers
3339	Kamalakar Rambhatla, MD INCEl Monte · 2 sites	Parent on file	1	2	Decision makers
3340	Karin C. Li, MDChino · 2 sites	-	1	2	Decision makers
3341	Kathy Karamlou M.D.Newport Beach · 1 site	-	1	2	Decision makers
3342	Kaveh Bagheri MDLa Mesa · 1 site	-	1	2	Decision makers
3343	Kaweah HealthVisalia · 1 site	Parent on file	1	2	Decision makers
3344	Kenneth Tway, M.D.San Luis Obispo · 1 site	-	1	2	Decision makers
3345	Kern Cardiology Medical GroupBakersfield · 1 site	-	1	2	Decision makers
3346	Kiavash Nikkhou, M.D.Thousand Oaks · 1 site	-	1	2	Decision makers
3347	Kind Health GroupEncinitas · 1 site	-	1	2	Decision makers
3348	Kindly Wound PhysiciansSanta Clarita · 1 site	-	1	2	Decision makers
3349	Kirkby Advanced Wound CareTorrance · 1 site	-	1	2	Decision makers
3350	Kramer OrthopedicsNewport Beach · 1 site	-	1	2	Decision makers

Showing 3,301 to 3,350 of 3,969 primary care groups in California

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

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