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 Johnson, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(619) 295-9729 Dr. John Lubisich, M.D.San Diego, CA · $15 in drug and device payments (2025) ·
(866) 558-4320 Dr. John Nguyen, M.D.San Diego, CA · $152 in drug and device payments (2025) ·
(952) 595-1100 Dr. John Renner, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Jonathan ChungSan Diego, CA · $187,282 in drug and device payments (2025) ·
(800) 926-8273 Dr. Jonathan CirielloSan Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Jonathan Gurney, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(858) 565-0950 Dr. Jonathan Wang, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(619) 543-7636 Dr. Jon Robins, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(866) 558-4320 Dr. Jordan Ziegler, MDSan Diego, CA · $15,761 in drug and device payments (2025) ·
(952) 595-1100 Dr. Jorge Mendoza, MDSan Diego, CA · $16 in drug and device payments (2025) ·
(858) 546-3800 Dr. Joseph Abrams, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Joseph Leeba, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(858) 554-2626 Dr. Joseph Wroblicka, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(858) 454-4235 Dr. Joshua Rosenbaum, MDSan Diego, CA · No drug or device payments recorded (2025) · Telehealth ·
(305) 951-1032 Dr. Joy Liau, M.D. PH.D.San Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Julie Marek Bykowski, M.D.San Diego, CA · $97 in drug and device payments (2025) ·
(619) 543-3534 Dr. Julie Payne, M.DSan Diego, CA · No drug or device payments recorded (2025) ·
(858) 565-0950 Dr. Justin Tan, M.D.San Diego, CA · $446 in drug and device payments (2025) ·
(619) 528-6000 Dr. Karen Chen, M.D.San Diego, CA · $210 in drug and device payments (2025) ·
(800) 926-8273 Dr. Karen Cheng, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Karl Grunseich, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(619) 346-8626 Dr. Kathleen Jacobs, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(619) 543-6268 Dr. Keir Fowler, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Keith Kortman, MDSan Diego, CA · $171 in drug and device payments (2025) ·
(858) 565-0950 Dr. Kelsey Bourm, MDSan Diego, CA · $120 in drug and device payments (2025) ·
(619) 543-2218 Dr. Kenneth Tan, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(877) 570-8362 Dr. Khaled Al TawilSan Diego, CA · No drug or device payments recorded (2025) ·
(858) 565-0950 Dr. Kira Chow, M.DSan Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Lauren Brown, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Lawrence Bogle, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(619) 819-6501 Dr. Lawrence Delasotta, MD, MPHSan Diego, CA · No drug or device payments recorded (2025) ·
(619) 543-2218 Dr. Lawrence Goldberger, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(858) 565-0950 Dr. Lee Harvey, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(858) 565-0950 Dr. Lee PinckneySan Diego, CA · No drug or device payments recorded (2025) ·
(858) 565-0950 Dr. Leif-erik Schumacher, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(858) 939-3600 Dr. Lejla Aganovic, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Lien Doan, MDSan Diego, CA · $66 in drug and device payments (2025) ·
(858) 546-3800 Dr. Lily Tang, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(619) 446-1586 Dr. Lindsay Burrowes, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(619) 471-0262 Dr. Logan Hubbard, MD, PHDSan Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Lorene Romine, M.D.San Diego, CA · $120 in drug and device payments (2025) ·
(619) 543-6222 Dr. Lori Baker, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(619) 295-9729 Dr. Louise O'shaughnessy, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(619) 295-9729 Dr. Louis Gagnon, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(858) 657-7000 Dr. Lucas Hiller, M.DSan Diego, CA · $34 in drug and device payments (2025) ·
(619) 543-2218 Dr. Luis Monterroso, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Luke Scalcione, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(516) 547-4997 Dr. Luke Wojdyla, DOSan Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Lydia Canavan, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(858) 454-4235 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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