Updated October 2026

Largest radiology and imaging groups in California

Medical group directory
California
Radiology and imaging

Groups: 266
Radiology groups: 264
Radiology specialists: 2,774
Physicians: 4,834
More than one site: 210

There are 266 radiology and imaging groups in California with a Medicare PAC ID. Beverly Radiology Medical Group is the largest, with 402 physicians.

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Beverly Radiology Medical Group is the largest radiology and imaging group in California, with 402 physicians

Ranked by physicians with a California address linked to each group. Martin Luther King Jr. Community Medical Group is second with 390, and Kern Medical third with 367. 32 California groups have 100 or more physicians.

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Radiology and imaging groups in California, ranked by physicians, 101 to 150
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
101	Turlock Imaging ServicesTurlock · 2 sites	Parent on file	25	26	Decision makers
102	Arcadia Radiology Medical GroupArcadia · 21 sites	Parent on file	25	25	Decision makers
103	Coast RadiologyMission Viejo · 3 sites	-	25	25	Decision makers
104	UCI Health PhysiciansOrange · 3 sites	Parent on file	24	27	Decision makers
105	Torrance Radiology Medical GroupTorrance · 4 sites	Parent on file	24	25	Decision makers
106	ONRADRiverside · 80 sites	Parent on file	24	24	Decision makers
107	Sol RadiologyVictorville · 6 sites	Parent on file	24	24	Decision makers
108	Sol RadiologyVictorville · 11 sites	Parent on file	24	24	Decision makers
109	Sierra Hematology & OncologyCarmichael · 6 sites	-	23	32	Decision makers
110	Adventist Health Simi Valley Medical CenterSimi Valley · 1 site	Parent on file	23	24	Decision makers
111	ForeFront RadiologyFresno · 3 sites	-	22	25	Decision makers
112	Beverly Radiology Medical GroupLos Angeles · 60 sites	Parent on file	22	22	Decision makers
113	Diagnostic Medical Group of Southern CaliforniaSan Gabriel · 4 sites	Parent on file	20	20	Decision makers
114	Vesta Radiology ServicesGlendale · 26 sites	Parent on file	20	20	Decision makers
115	St Francis Radiology Medical GroupLynwood · 7 sites	-	19	21	Decision makers
116	Pomona Valley Imaging Medical GroupPomona · 17 sites	Parent on file	19	20	Decision makers
117	Salinas Valley RadiologistsSalinas · 9 sites	Parent on file	19	20	Decision makers
118	Glendora Radiological AssociatesCovina · 3 sites	-	19	19	Decision makers
119	Jason L Hwang MD IncSonora · 52 sites	-	19	19	Decision makers
120	North County Radiology AssociatesEscondido · 4 sites	Parent on file	19	19	Decision makers
121	Silver Creek RadiologySan Jose · 12 sites	Parent on file	19	19	Decision makers
122	South Coast RadiologyLaguna Hills · 4 sites	Parent on file	19	19	Decision makers
123	ProHealth Advanced ImagingNorth Hollywood · 5 sites	Parent on file	18	20	Decision makers
124	Motherlode Diagnostic Imaging Medical Group, Inc.Jackson · 3 sites	-	18	18	Decision makers
125	Wishon Radiological Medical GroupFresno · 6 sites	Parent on file	18	18	Decision makers
126	Proton Doctors PCSan Diego · 4 sites	-	17	17	Decision makers
127	Mineral King RadiologyVisalia · 5 sites	-	16	20	Decision makers
128	First Medical CenterCerritos · 5 sites	Parent on file	15	17	Decision makers
129	Radiology Medical Group of NapaNapa · 34 sites	Parent on file	15	16	Decision makers
130	Coastal Radiation OncologySalinas · 11 sites	-	15	15	Decision makers
131	Fullerton Radiology Medical GroupAnaheim · 2 sites	-	14	15	Decision makers
132	UCLA Medical GroupLos Angeles · 7 sites	Parent on file	13	15	Decision makers
133	Arrowhead Radiology Medical GroupColton · 2 sites	Parent on file	13	13	Decision makers
134	IGT Radiology (Image Guided Therapeutics)San Francisco · 9 sites	-	13	13	Decision makers
135	Medical Imaging Center of Southern CaliforniaSanta Monica · 4 sites	Parent on file	12	16	Decision makers
136	Cancer Therapy Medical GroupAlamo · 4 sites	Parent on file	12	15	Decision makers
137	B&B Medical GroupBellflower · 1 site	-	12	13	Decision makers
138	Centinela Radiology Medical GroupInglewood · 2 sites	-	12	12	Decision makers
139	Advanced Urology Medical OfficesLos Angeles · 4 sites	-	11	14	Decision makers
140	Providence Rezolut ImagingChino Hills · 3 sites	Parent on file	11	12	Decision makers
141	Advanced Imaging Center (AIC)Lancaster · 5 sites	Parent on file	11	11	Decision makers
142	Minimally Invasive Surgical Solutions (MISS)San Jose · 1 site	-	11	11	Decision makers
143	Santa Barbara Radiology Medical GroupSanta Barbara · 2 sites	Parent on file	11	11	Decision makers
144	Thousand Oaks RadiologyThousand Oaks · 6 sites	Parent on file	11	11	Decision makers
145	Tri-Valley Urology Medical GroupMurrieta · 4 sites	-	10	11	Decision makers
146	Golden Gate RadiologySan Francisco · 4 sites	-	10	10	Decision makers
147	United Premier Physicians Imaging Centers (Calvin Yang, M.D.)Monterey Park · 3 sites	Parent on file	10	10	Decision makers
148	Dermatology & Laser Center of San DiegoChula Vista · 4 sites	-	9	15	Decision makers
149	Aria Vascular CenterStockton · 2 sites	-	9	12	Decision makers
150	Reza Shahbaz, M.D., Inc.Orange · 7 sites	-	9	10	Decision makers

Showing 101 to 150 of 266 radiology and imaging groups in California

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

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