Diagnostic Radiologists in California
Data updated monthly · Last refresh October 2026
4,516 Diagnostic Radiology providers practice in California, including 50 (1%) offering telehealth. The largest concentration is in Los Angeles. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
4,516providers
50telehealth
Los Angelestop city
Diagnostic Radiology by city in California
Choose a city to see providers there.
Diagnostic Radiology providers in California
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. John Belville, M.D.Fountain Valley, CA · No drug or device payments recorded (2025) ·
(714) 966-7200 Dr. Mehran Tirandaz, M.D.Fountain Valley, CA · No drug or device payments recorded (2025) ·
(714) 966-7200 Dr. Richard Reitherman, MEDICAL DOCTORFountain Valley, CA · No drug or device payments recorded (2025) ·
(714) 378-7955 Dr. Robert Turner, M.D.Fountain Valley, CA · No drug or device payments recorded (2025) ·
(714) 966-7200 Dr. Ronald Frug, MDFountain Valley, CA · No drug or device payments recorded (2025) ·
(714) 431-0303 Dr. Sheldon Zide, M.D.Fountain Valley, CA · No drug or device payments recorded (2025) ·
(714) 966-7200 Dr. William Grandolfo, M.D.Fountain Valley, CA · No drug or device payments recorded (2025) ·
(714) 377-3198 Dr. Anjali Taneja, DOFremont, CA · No drug or device payments recorded (2025) ·
(510) 797-1111 Dr. Brian Nagai, M.D.Fremont, CA · No drug or device payments recorded (2025) ·
(510) 490-1222 Dr. Bruce Nixon, M.D.Fremont, CA · No drug or device payments recorded (2025) ·
(510) 797-3342 Dr. Chad Sarver, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 248-3000 Dr. Daniel Mcnay, M.D.Fremont, CA · No drug or device payments recorded (2025) ·
(510) 402-4846 Dr. David Chin, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 490-1222 Dr. Gregory Sabo, M.D.Fremont, CA · No drug or device payments recorded (2025) ·
(510) 248-7127 Dr. Haramrit Hansra, M.D.. Dr. Jacob Wouden, M.D.Fremont, CA · No drug or device payments recorded (2025) ·
(617) 797-1111 Dr. Jaskiran Sharkey, M.D.Fremont, CA · No drug or device payments recorded (2025) ·
(510) 454-7510 Dr. Lisa Kinoshita, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 498-2770 Dr. Maureen Chapman, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 498-2770 Dr. Maxine Alexandra GasparFremont, CA · No drug or device payments recorded (2025) ·
(510) 490-0961 Dr. Neda Najmi, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 248-3000 Dr. Sean Hilchey, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 530-0260 Dr. Thomas Efird, M.D.Fremont, CA · No drug or device payments recorded (2025) ·
(510) 498-2770 Dr. Vineet Sharma, MDFremont, CA · No drug or device payments recorded (2025) ·
(510) 490-1222 Dr. David Serrano, MDFrench Camp, CA · No drug or device payments recorded (2025) ·
(209) 647-2184 Dr. Dennis Jacobsen, M.D.French Camp, CA · No drug or device payments recorded (2025) ·
(209) 468-6937 Dr. Alysse Clark, MDFresno, CA · No drug or device payments recorded (2025) ·
(559) 499-6500 Dr. Anand Shivaprasad, DOFresno, CA · No drug or device payments recorded (2025) ·
(559) 450-5375 Dr. Anik PatelFresno, CA · No drug or device payments recorded (2025) ·
(559) 499-6416 Dr. Ashkan Heshmatzadeh Behzadi, MDFresno, CA · $2,616 in drug and device payments (2025) · Telehealth ·
(559) 450-6742 Dr. Azeem Noorani, MDFresno, CA · No drug or device payments recorded (2025) ·
(559) 450-3210 Dr. Chandrasekar Venugopal, MDFresno, CA · No drug or device payments recorded (2025) ·
(559) 325-5800 Dr. Cicely Roberts, M.D.Fresno, CA · No drug or device payments recorded (2025) ·
(559) 435-2630 Dr. Clement TranFresno, CA · No drug or device payments recorded (2025) ·
(559) 499-6500 Dr. Daniel Marks, M.D.Fresno, CA · No drug or device payments recorded (2025) ·
(559) 447-4000 Dr. David Sharp, M.D.Fresno, CA · No drug or device payments recorded (2025) ·
(559) 447-4000 Dr. Diana Artenian, MDFresno, CA · No drug or device payments recorded (2025) ·
(559) 325-5800 Dr. Edward Math, MDFresno, CA · No drug or device payments recorded (2025) ·
(559) 325-5800 Dr. Eric Raymond, M.D.Fresno, CA · No drug or device payments recorded (2025) ·
(559) 225-6100 Dr. Frank Chang, M.D.Fresno, CA · No drug or device payments recorded (2025) ·
(559) 325-5800 Dr. Fred Logalbo, M.D.Fresno, CA · No drug or device payments recorded (2025) ·
(559) 325-5800 Dr. George Rabey, MDFresno, CA · No drug or device payments recorded (2025) ·
(559) 448-4500 Dr. Gregory Linkowski, MDFresno, CA · No drug or device payments recorded (2025) ·
(559) 448-4500 Dr. Hans-joachim Hildebrandt, M.D.Fresno, CA · No drug or device payments recorded (2025) ·
(559) 325-5800 Dr. Harpreet Gill, M.D.Fresno, CA · No drug or device payments recorded (2025) ·
(559) 448-5034 Dr. Ivan Ramirez, MDFresno, CA · No drug or device payments recorded (2025) ·
(559) 325-5800 Dr. James Forsythe, MDFresno, CA · No drug or device payments recorded (2025) ·
(559) 432-7442 Common questions
How many Diagnostic Radiology providers are in California?There are 4,516 Diagnostic Radiology providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Diagnostic Radiology providers in California offer telehealth?Yes. 50 of the 4,516 Diagnostic Radiology providers in California (about 1%) report offering telehealth services in CMS data.
Which cities in California have the most Diagnostic Radiology providers?Los Angeles (594), San Diego (377), San Francisco (335) have the highest concentration of Diagnostic Radiology providers in California.
How many Diagnostic Radiology providers in California received drug or device company payments?917 of 4,516 Diagnostic Radiology providers in California (20%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Do most Diagnostic Radiologists in California work in independent practices or large health systems?Among 2,842 Diagnostic Radiologists in California enrolled in Medicare, 6% bill through a solo or small practice with fewer than 10 clinicians, 16% through a mid-size group of 10 to 99, and 78% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Diagnostic Radiologists in California work at?According to CMS facility affiliation records, the California hospitals where the most Diagnostic Radiologists hold privileges are UCSF Medical Center in San Francisco; UC San Diego Health Hillcrest - Hillcrest Med Ctr in San Diego; Uci Health-Orange in Orange.
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