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, 3,251 to 3,300
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
3251	Emerald Family Medical ClinicSan Gabriel · 1 site	-	1	2	Decision makers
3252	Encinitas Family CareEncinitas · 1 site	-	1	2	Decision makers
3253	Endocrine Consultants of MontereyMonterey · 1 site	Parent on file	1	2	Decision makers
3254	Endocrinology and Rheumatology ClinicChico · 2 sites	-	1	2	Decision makers
3255	EVOLVETarzana · 1 site	-	1	2	Decision makers
3256	EZER MEDICAL CLINIC & MED SPAFullerton · 1 site	-	1	2	Decision makers
3257	Family Allergy Asthma, Immunology & Sinus CenterPoway · 1 site	-	1	2	Decision makers
3258	Family Care Clinic IncBakersfield · 1 site	-	1	2	Decision makers
3259	Family Health & Wellness CenterNorthridge · 1 site	-	1	2	Decision makers
3260	Fargo Meds ClinicFresno · 1 site	-	1	2	Decision makers
3261	First Integrated Care Medical GroupLong Beach · 1 site	Parent on file	1	2	Decision makers
3262	First Step RegenerativeSanta Barbara · 1 site	-	1	2	Decision makers
3263	Flintridge Surgical SolutionsLa Canada Flintridge · 1 site	-	1	2	Decision makers
3264	Folsom City MDFolsom · 2 sites	-	1	2	Decision makers
3265	Folsom Family & Sports Medical GroupFolsom · 2 sites	-	1	2	Decision makers
3266	Foothill Arthritis ClinicTujunga · 1 site	-	1	2	Decision makers
3267	Foothill Surgical Associates & Varicose Vein CareCorona Del Mar · 1 site	-	1	2	Decision makers
3268	Four Square ClinicalsPlacentia · 1 site	-	1	2	Decision makers
3269	Gary Johnson, MD Family PracticeSan Andreas · 1 site	-	1	2	Decision makers
3270	Gastrointestinal & Non-Surgical Weight Loss SolutionsArcadia · 1 site	-	1	2	Decision makers
3271	Gaurav Datta MDElk Grove · 1 site	-	1	2	Decision makers
3272	Genesis Sleep MDNewport Beach · 1 site	-	1	2	Decision makers
3273	Genus Medical GroupBuena Park · 1 site	-	1	2	Decision makers
3274	Georgina HealthChico · 1 site	-	1	2	Decision makers
3275	Gerges Medical Clinic, Inc.Visalia · 1 site	-	1	2	Decision makers
3276	Get AgingSan Francisco · 1 site	Parent on file	1	2	Decision makers
3277	Gharghoury, M.D.Yucca Valley · 2 sites	-	1	2	Decision makers
3278	Ghazvini & Javaheri M.D. IncLaguna Hills · 2 sites	Parent on file	1	2	Decision makers
3279	Gigi Thomas, MDBrea · 3 sites	Parent on file	1	2	Decision makers
3280	Gilroy GastroGilroy · 1 site	-	1	2	Decision makers
3281	GJE INC.Newbury Park · 1 site	-	1	2	Decision makers
3282	Glendale VascularGlendale · 1 site	-	1	2	Decision makers
3283	Golden Health and Beauty CenterEncino · 1 site	-	1	2	Decision makers
3284	Gonzales Medical CenterGonzales · 2 sites	-	1	2	Decision makers
3285	Grace Geriatric Care, Inc. (Family Practice Associates)Garden Grove · 1 site	-	1	2	Decision makers
3286	Granite Bay Allergy, Asthma, and ImmunologyRoseville · 1 site	-	1	2	Decision makers
3287	Greenhaven Family PracticeSacramento · 1 site	-	1	2	Decision makers
3288	Hacienda Medical ClinicHacienda Heights · 1 site	-	1	2	Decision makers
3289	Hani Hashem, MDCovina · 1 site	-	1	2	Decision makers
3290	Harbor Arthritis & Medical ClinicGarden Grove · 1 site	-	1	2	Decision makers
3291	Harishchandra N. Patel, M.D., Inc.Anaheim · 1 site	-	1	2	Decision makers
3292	Harwood OrthopedicsMorgan Hill · 2 sites	-	1	2	Decision makers
3293	Haven HealthLos Angeles · 1 site	-	1	2	Decision makers
3294	HEAL Medical GroupSan Diego · 2 sites	Parent on file	1	2	Decision makers
3295	Healing Horizon Wound CareSun Valley · 1 site	Parent on file	1	2	Decision makers
3296	Health Alliance Medical GroupHacienda Heights · 1 site	-	1	2	Decision makers
3297	Health Link HospiceSan Francisco · 1 site	Parent on file	1	2	Decision makers
3298	Health Solutions Medical CorporationLaguna Niguel · 2 sites	-	1	2	Decision makers
3299	Healthcare Medical Clinic of PomonaPomona · 1 site	-	1	2	Decision makers
3300	Heart & Wellness CenterChula Vista · 1 site	-	1	2	Decision makers

Showing 3,251 to 3,300 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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