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. Christopher Bedford, M.D.Northridge, CA · No drug or device payments recorded (2025) ·
(818) 435-1400 Dr. Geraldine Chang, M.D.Northridge, CA · No drug or device payments recorded (2025) ·
(818) 435-1400 Dr. Jeremy Chin, M.D.Northridge, CA · $112 in drug and device payments (2025) ·
(818) 435-1400 Dr. Kellie Curtis, MDNorthridge, CA · No drug or device payments recorded (2025) ·
(818) 435-1400 Dr. Lucas Payor, MDNorthridge, CA · No drug or device payments recorded (2025) ·
(818) 435-1400 Dr. Michael Hepfer, MDNorthridge, CA · $431 in drug and device payments (2025) ·
(818) 435-1400 Dr. Michael Zaghi, M.D.Northridge, CA · No drug or device payments recorded (2025) ·
(818) 435-1400 Dr. Parizad Hooshi, M.D.Northridge, CA · $19 in drug and device payments (2025) ·
(818) 349-5050 Dr. Rajiv Pai, M.D.Northridge, CA · No drug or device payments recorded (2025) ·
(818) 435-1400 Dr. Ryan FrankeNorthridge, CA · No drug or device payments recorded (2025) ·
(818) 435-1400 Dr. Tzyy Shyang Chao, M.D.Northridge, CA · No drug or device payments recorded (2025) ·
(818) 435-1400 Dr. Varand Ghazikhanian, MDNorthridge, CA · No drug or device payments recorded (2025) ·
(818) 435-1400 Dr. Fred Lau, MDNorwalk, CA · No drug or device payments recorded (2025) ·
(562) 868-3751 Dr. Ari Kane, MDNovato, CA · No drug or device payments recorded (2025) ·
(415) 209-1500 Dr. Crystal Chang, M.D.Novato, CA · No drug or device payments recorded (2025) ·
(415) 290-1500 Dr. Jean-pierre Phancao, M.D.Novato, CA · No drug or device payments recorded (2025) ·
(415) 464-8081 Dr. Mason Tippy, MDNovato, CA · No drug or device payments recorded (2025) ·
(415) 209-1522 Dr. Nicholas Hoehnle, MDNovato, CA · No drug or device payments recorded (2025) ·
(415) 209-1522 Dr. Robert Wirth, M.D.Novato, CA · No drug or device payments recorded (2025) ·
(415) 209-1500 Dr. Shital Gandhi, MDNovato, CA · No drug or device payments recorded (2025) ·
(415) 884-3415 Dr. Abhiram Nagaraj, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 437-4965 Dr. Amin Matin, M.D., M.P.H.Oakland, CA · No drug or device payments recorded (2025) ·
(925) 295-5758 Dr. Bebe Young, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-5984 Dr. Chung Lee, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 393-9106 Dr. David Lim, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-1000 Dr. David Sonne, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-1000 Dr. David Spring, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-1000 Dr. Derek Kubota, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-1000 Dr. Donald Breyer, M.D.Oakland, CA · No drug or device payments recorded (2025) ·
(510) 339-9204 Dr. Douglas Riehle, MDOakland, CA · No drug or device payments recorded (2025) ·
(925) 274-4950 Dr. Duard Enoch, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 428-3000 Dr. Edward Drasin, M.D.Oakland, CA · $100 in drug and device payments (2025) ·
(925) 274-4950 Dr. Ellen Clark, DOOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-5991 Dr. Eric PangOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-1000 Dr. Fredric Chin, M.D.Oakland, CA · No drug or device payments recorded (2025) ·
(510) 869-6588 Dr. Gabriel Howles-banerji, MD, PHDOakland, CA · $44,207 in drug and device payments (2025) ·
(510) 752-6035 Dr. Gina Song, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-1000 Dr. Grace Fan, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-1000 Dr. Hayden Evans, M.D.Oakland, CA · No drug or device payments recorded (2025) ·
(925) 274-4950 Dr. Hoiwan CheungOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-1933 Dr. Howard Glazer, M.D.Oakland, CA · No drug or device payments recorded (2025) ·
(510) 437-4201 Dr. Humphrey Mansfield, MDOakland, CA · No drug or device payments recorded (2025) ·
(925) 274-4950 Dr. Irene Balcar, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-1000 Dr. Jacque Jumper, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-1000 Dr. Jason Hwang, MDOakland, CA · No drug or device payments recorded (2025) ·
(925) 274-4950 Dr. Javier Rivera, M.DOakland, CA · No drug or device payments recorded (2025) ·
(510) 428-3000 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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