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, 3,551 to 3,600
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
3551	Sierra Allergy Asthma and Sinus CenterFresno · 2 sites	-	1	2	Decision makers
3552	Sierra Family PracticeThree Rivers · 1 site	-	1	2	Decision makers
3553	SimiCare Medical GroupSimi Valley · 1 site	-	1	2	Decision makers
3554	Skinpeccable Dermatology & LasersLos Angeles · 2 sites	-	1	2	Decision makers
3555	Sleep Fit MedicalSonoma · 2 sites	-	1	2	Decision makers
3556	SLO Health Center (SLO Health)San Luis Obispo · 1 site	-	1	2	Decision makers
3557	SLS Medical CenterEncino · 1 site	-	1	2	Decision makers
3558	Smith Family MedicineRoseville · 1 site	-	1	2	Decision makers
3559	SOCAL EPAnaheim · 1 site	-	1	2	Decision makers
3560	SoCal Medi-SpaHuntington Beach · 1 site	Parent on file	1	2	Decision makers
3561	Sonoma Vein Cardiovascular Laser GroupSanta Rosa · 1 site	-	1	2	Decision makers
3562	Sophia Mirviss M.D.Berkeley · 1 site	-	1	2	Decision makers
3563	Soraya Medical GroupSouth Gate · 1 site	-	1	2	Decision makers
3564	South Main MedicalSanta Ana · 1 site	-	1	2	Decision makers
3565	Southern California Vein & Wound Care CenterGarden Grove · 1 site	-	1	2	Decision makers
3566	Southland Hematology-OncologyHemet · 1 site	-	1	2	Decision makers
3567	Specialized Urgent CareJurupa Valley · 1 site	Parent on file	1	2	Decision makers
3568	Spectrum Care and WellnessBurbank · 2 sites	-	1	2	Decision makers
3569	Sphere Wound Specialists IncBurbank · 1 site	-	1	2	Decision makers
3570	Sreedhar Chava, MDEl Monte · 3 sites	-	1	2	Decision makers
3571	Sseare Md, LLCSan Diego · 1 site	-	1	2	Decision makers
3572	St. Francis Medical CenterLynwood · 1 site	Parent on file	1	2	Decision makers
3573	St. Therese Medical GroupBakersfield · 1 site	Parent on file	1	2	Decision makers
3574	STAR Urology, Inc.Glendale · 1 site	-	1	2	Decision makers
3575	StatMD Urgent CareBakersfield · 1 site	Parent on file	1	2	Decision makers
3576	Steven H. Suchman MD, Inc.Thousand Oaks · 1 site	-	1	2	Decision makers
3577	Stockton Cardiology Medical GroupStockton · 1 site	-	1	2	Decision makers
3578	Stockton Pulmonary DoctorsStockton · 1 site	-	1	2	Decision makers
3579	STS ClinicCanoga Park · 1 site	-	1	2	Decision makers
3580	Sunrise Medical GroupEl Centro · 1 site	Parent on file	1	2	Decision makers
3581	SunVida Medical ClinicSun Valley · 1 site	-	1	2	Decision makers
3582	Syed J Raza MD IncApple Valley · 1 site	-	1	2	Decision makers
3583	Syed M Hossain Md IncLos Angeles · 1 site	Parent on file	1	2	Decision makers
3584	Sylvia J. Shaw, MDLynwood · 1 site	-	1	2	Decision makers
3585	Symphony HealthSan Ramon · 1 site	-	1	2	Decision makers
3586	Tailored Family HealthClaremont · 2 sites	-	1	2	Decision makers
3587	Tejas I. Patel, MDBurbank · 1 site	-	1	2	Decision makers
3588	The Healing RheumGlendale · 1 site	-	1	2	Decision makers
3589	The Home Visiting Doctors & Nurses CompanyGlendale · 1 site	-	1	2	Decision makers
3590	The Integrative Medicine Center of Santa BarbaraSanta Barbara · 1 site	-	1	2	Decision makers
3591	The LGBTQ Center Long BeachLong Beach · 1 site	Parent on file	1	2	Decision makers
3592	The Sleep Disorder CenterYuba City · 1 site	-	1	2	Decision makers
3593	The Symba CenterVictorville · 1 site	-	1	2	Decision makers
3594	Thrive Care Health & WellnessCorona · 1 site	-	1	2	Decision makers
3595	Tigalat Shalita DO Inc.West Hills · 1 site	-	1	2	Decision makers
3596	Tincopa Medical ClinicWhittier · 1 site	-	1	2	Decision makers
3597	Tinny Dohn, MDLos Gatos · 1 site	Parent on file	1	2	Decision makers
3598	Toluca Lake Medical Clinic IncToluca Lake · 1 site	-	1	2	Decision makers
3599	Tom Yang MD IncVisalia · 1 site	-	1	2	Decision makers
3600	Town Center Plaza Urgent CareApple Valley · 1 site	-	1	2	Decision makers

Showing 3,551 to 3,600 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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