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, 151 to 200
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
151	Adventist Health GlendaleGlendale · 9 sites	Parent on file	145	173	Decision makers
152	Adventist Health Tehachapi ValleyTehachapi · 4 sites	Parent on file	145	162	Decision makers
153	Kansal IncWest Hollywood · 13 sites	-	144	155	Decision makers
154	Oro Health ProfessionalOroville · 14 sites	Parent on file	143	274	Decision makers
155	Neighborhood HealthcareEscondido · 37 sites	Parent on file	141	465	Decision makers
156	Exer Urgent CareCalabasas · 81 sites	Parent on file	141	400	Decision makers
157	Solano Gateway Medical Group, Inc.Fairfield · 32 sites	-	141	212	Decision makers
158	Golden State Emergency Physicians, Inc.Los Angeles · 22 sites	-	139	202	Decision makers
159	Adventist Health BakersfieldBakersfield · 5 sites	Parent on file	139	163	Decision makers
160	NorthBay HealthFairfield · 29 sites	Parent on file	137	241	Decision makers
161	TeamHealthPleasanton · 19 sites	Parent on file	136	216	Decision makers
162	Marshall Medical CenterEl Dorado Hills · 17 sites	Parent on file	134	200	Decision makers
163	United Medical DoctorsMurrieta · 30 sites	-	132	257	Decision makers
164	CareConnectMDCosta Mesa · 23 sites	Parent on file	131	199	Decision makers
165	CEP AmericaEmeryville · 29 sites	Parent on file	130	164	Decision makers
166	Orange Coast AnesthesiaOrange · 16 sites	Parent on file	130	138	Decision makers
167	Adventist Health Ukiah ValleyUkiah · 14 sites	Parent on file	129	189	Decision makers
168	24 On Physicians Of California PCPorterville · 5 sites	-	128	130	Decision makers
169	Pinnacle Emergency Physicians of BakersfieldBakersfield · 20 sites	-	127	211	Decision makers
170	Anesthesia Care Associates Medical GroupBurlingame · 19 sites	Parent on file	127	140	Decision makers
171	Mindpath Health Medical GroupSacramento · 80 sites	Parent on file	126	414	Decision makers
172	CEP AmericaEmeryville · 64 sites	Parent on file	126	206	Decision makers
173	American Specialty Physicians GroupModesto · 13 sites	-	125	172	Decision makers
174	UCLA Emergency MedicineLos Angeles · 9 sites	Parent on file	124	139	Decision makers
175	Venice Family ClinicVenice · 16 sites	Parent on file	123	201	Decision makers
176	Schweiger Dermatology Group, San PedroSan Pedro · 48 sites	Parent on file	123	189	Decision makers
177	Montage Medical GroupCarmel · 8 sites	Parent on file	122	152	Decision makers
178	Perlman ClinicLa Jolla · 46 sites	-	121	501	Decision makers
179	Tahoe Forest MultiSpecialty ClinicsTruckee · 14 sites	Parent on file	121	167	Decision makers
180	North East Medical Services (NEMS)Daly City · 27 sites	Parent on file	120	208	Decision makers
181	San Francisco Emergency Medical AssociatesMill Valley · 17 sites	-	120	169	Decision makers
182	G2 AnesthesiaLos Gatos · 10 sites	-	120	134	Decision makers
183	Magnetic Imaging AffiliatesOakland · 20 sites	-	120	127	Decision makers
184	UCLA NeurologyLos Angeles · 23 sites	Parent on file	119	148	Decision makers
185	Comprehensive Psychiatric ServicesWalnut Creek · 18 sites	-	119	124	Decision makers
186	San Ramon Emergency PhysiciansPleasanton · 19 sites	-	118	174	Decision makers
187	UCI HealthOrange · 12 sites	Parent on file	118	156	Decision makers
188	Cottage Medical GroupSanta Barbara · 18 sites	Parent on file	118	149	Decision makers
189	Palomar Emergency PhysiciansEscondido · 18 sites	Parent on file	118	147	Decision makers
190	Physicians' Medical GroupSanta Barbara · 29 sites	Parent on file	117	190	Decision makers
191	LifeLong Medical CareBerkeley · 23 sites	Parent on file	116	274	Decision makers
192	Modesto Radiological Medical GroupTracy · 101 sites	-	116	121	Decision makers
193	Focus Medical ImagingMonrovia · 82 sites	Parent on file	116	118	Decision makers
194	OB/GYN University AssociatesOrange · 7 sites	Parent on file	115	145	Decision makers
195	St. John's Community HealthLos Angeles · 29 sites	Parent on file	114	455	Decision makers
196	Kaweah Health Cardiothoracic Surgery ClinicVisalia · 31 sites	Parent on file	114	241	Decision makers
197	Santa Rosa Community HealthSanta Rosa · 16 sites	Parent on file	114	225	Decision makers
198	UCI Health PhysiciansOrange · 11 sites	Parent on file	114	203	Decision makers
199	US Acute Care SolutionsBakersfield · 19 sites	Parent on file	114	170	Decision makers
200	Desert Oasis HealthcarePalm Springs · 17 sites	Parent on file	112	241	Decision makers

Showing 151 to 200 of 10,378 medical groups in California

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

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