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.

Find the decision makers at all 10,378 California medical groups

Work emails and mobile numbers for practice owners, administrators and physician leaders, found through healthcare waterfall enrichment, with a free Dmand AI account.

View contacts for free

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.

Filter this list with a free account

Sort and filter all 10,378 California medical groups by specialty, city, parent organization, group size, EHR in use and decision makers in Dmand AI.

Filter in Dmand AI

Medical groups in California, ranked by physicians, 251 to 300
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
251	California Anesthesia Associates Medical Group, Inc.Long Beach · 11 sites	-	88	97	Decision makers
252	Prima Medical GroupNovato · 38 sites	Parent on file	88	97	Decision makers
253	Corona Regional Medical CenterCorona · 19 sites	Parent on file	87	138	Decision makers
254	UCI HealthOrange · 10 sites	Parent on file	87	122	Decision makers
255	Adventist Health and RideoutMarysville · 17 sites	Parent on file	87	112	Decision makers
256	Cottage Medical GroupSanta Barbara · 10 sites	Parent on file	87	109	Decision makers
257	Palomar Hospitalist Medical GroupEscondido · 8 sites	-	87	96	Decision makers
258	Newport Harbor Anesthesia ConsultantsNewport Beach · 12 sites	-	86	99	Decision makers
259	Encinitas Hospitalist AssociatesEncinitas · 8 sites	-	86	90	Decision makers
260	Clinicas del Camino Real, Inc.Ventura · 20 sites	Parent on file	83	236	Decision makers
261	Graybill Medical GroupEscondido · 11 sites	-	83	131	Decision makers
262	Pacific Redwood Medical GroupUkiah · 11 sites	Parent on file	83	115	Decision makers
263	Northern Inyo HospitalBishop · 3 sites	Parent on file	83	99	Decision makers
264	Buena Vista Anesthesia Medical GroupBurbank · 10 sites	Parent on file	83	94	Decision makers
265	Valley Regional Anesthesia AssociatesFresno · 44 sites	Parent on file	82	250	Decision makers
266	HMH Emergency Medical GroupPasadena · 11 sites	Parent on file	82	113	Decision makers
267	UCLA Health Westwood OBGYNLos Angeles · 11 sites	Parent on file	82	97	Decision makers
268	Exer Urgent CareLos Angeles · 38 sites	Parent on file	80	159	Decision makers
269	Mammoth HospitalMammoth Lakes · 2 sites	Parent on file	80	122	Decision makers
270	Victory Emergency Physicians Medical GroupLos Angeles · 9 sites	-	80	118	Decision makers
271	RADS, Inc.Manteca · 95 sites	-	80	84	Decision makers
272	Bayside Anesthesia Medical GroupSanta Monica · 7 sites	Parent on file	80	81	Decision makers
273	Centinela Freeman Emergency Medical Associates, Inc.Inglewood · 14 sites	-	79	130	Decision makers
274	Adventist Health Howard MemorialWillits · 4 sites	Parent on file	79	113	Decision makers
275	Lambert Radiology Medical GroupWhittier · 16 sites	Parent on file	79	94	Decision makers
276	Advanced Radiology and Interventional Associates (ARIA)Modesto · 47 sites	-	79	92	Decision makers
277	UCLA Department of Pathology and LaboratoryLos Angeles · 9 sites	Parent on file	79	84	Decision makers
278	Los Alamitos Radiology GroupLos Alamitos · 67 sites	Parent on file	79	81	Decision makers
279	Telecare CorporationAlameda · 60 sites	Parent on file	78	356	Decision makers
280	Golden State DermatologyWalnut Creek · 39 sites	Parent on file	78	143	Decision makers
281	Oroville HospitalOroville · 40 sites	Parent on file	78	120	Decision makers
282	UCI Health Gavin Herbert Eye InstituteOrange · 7 sites	Parent on file	78	100	Decision makers
283	Montclair Emergency Medical AssociatesMontclair · 8 sites	-	78	95	Decision makers
284	Imaging Healthcare SpecialistsSan Diego · 48 sites	Parent on file	78	81	Decision makers
285	Traditions Behavioral HealthSanta Rosa · 6 sites	Parent on file	78	78	Decision makers
286	Chino Emergency Medical Associates, Inc.Chino · 10 sites	-	77	95	Decision makers
287	Napa Valley Emergency Medical GroupSonoma · 10 sites	Parent on file	77	93	Decision makers
288	Solano Diagnostics ImagingFairfield · 37 sites	-	77	81	Decision makers
289	Community Health Centers of AmericaMariposa · 12 sites	Parent on file	76	182	Decision makers
290	ARC Physical TherapyTempleton · 22 sites	-	76	109	Decision makers
291	Emergency Physicians AssociatesFremont · 12 sites	Parent on file	76	97	Decision makers
292	Fullerton Radiology Medical GroupAnaheim · 43 sites	-	76	80	Decision makers
293	St. Jude Radiology Medical Group, Inc.Fullerton · 63 sites	-	76	77	Decision makers
294	Wesley Health Centers - JWCH Institute, Inc.Commerce · 25 sites	Parent on file	75	245	Decision makers
295	Asian Health ServicesOakland · 8 sites	Parent on file	75	134	Decision makers
296	Emergency Medicine Specialists of Orange CountyOrange · 9 sites	Parent on file	75	125	Decision makers
297	Skilled Physicians GroupGlendale · 43 sites	-	75	116	Decision makers
298	Dignity Health Medical Group - StocktonStockton · 7 sites	Parent on file	75	93	Decision makers
299	Adventist Health St. HelenaSaint Helena · 4 sites	Parent on file	74	120	Decision makers
300	United Medical Imaging HealthcareDowney · 41 sites	Parent on file	74	82	Decision makers

Showing 251 to 300 of 10,378 medical groups in California

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

For sales teams

Find the decision makers at California medical groups

Dmand AI maps the owners, administrators and physician leaders at each of the 10,378 California medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.

Try for free Book a meeting

Dmand AI

Find the right contacts at every California medical group

Search 10,378 groups by specialty, size and parent organization, with the physicians and leaders at each one.

Start free trial Book a demo

30 days free
Self-serve
No credit card