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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 in Los Angeles594 providers
Diagnostic Radiology in San Diego377 providers
Diagnostic Radiology in San Francisco335 providers
Diagnostic Radiology in Stanford235 providers
Diagnostic Radiology in Sacramento233 providers
Diagnostic Radiology in Orange120 providers
Diagnostic Radiology in Walnut Creek99 providers
Diagnostic Radiology in Loma Linda74 providers
Diagnostic Radiology in Santa Barbara74 providers
Diagnostic Radiology in Palo Alto69 providers
Diagnostic Radiology in La Jolla69 providers
Diagnostic Radiology in San Jose69 providers
Diagnostic Radiology in Oakland68 providers
Diagnostic Radiology in Long Beach64 providers
Diagnostic Radiology in Torrance64 providers
Diagnostic Radiology in Modesto60 providers
Diagnostic Radiology in Fresno58 providers
Diagnostic Radiology in Santa Monica55 providers
Diagnostic Radiology in El Segundo50 providers
Diagnostic Radiology in West Hollywood45 providers
Diagnostic Radiology in Santa Rosa45 providers
Diagnostic Radiology in Newport Beach43 providers
Diagnostic Radiology in Bakersfield41 providers
Diagnostic Radiology in Beverly Hills37 providers

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 Holloway, DO
San Francisco, CA · No drug or device payments recorded (2025) · (714) 456-8888
Dr. John Mongan, MD, PHD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-8358
Dr. John Rhee, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 750-6025
Dr. John Schrumpf, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 750-6025
Dr. John Sowinski, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 502-2673
Dr. Jonathan Friedman, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 514-5681
Dr. Jonathan Liu, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (650) 723-4000
Dr. Jonathan Tran, DO
San Francisco, CA · No drug or device payments recorded (2025) · (415) 502-2673
Dr. Jon Shanser, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-6390
Dr. Jon Wack, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 750-6025
Dr. Joseph Leach, MD, PHD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 312-9843
Dr. Joshua Rabang, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-9056
Dr. Judong Pan, M.D.
San Francisco, CA · $35 in drug and device payments (2025) · (415) 476-8358
Dr. Judy Yee, M.D.
San Francisco, CA · $293 in drug and device payments (2025) · (415) 353-1079
Dr. Jun Wu, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 833-2000
Dr. Justin Banaga
San Francisco, CA · No drug or device payments recorded (2025) · (628) 206-8020
Dr. Justin Remer, MD
San Francisco, CA · $610 in drug and device payments (2025) · (415) 476-1000
Dr. Jyoti Narayanswami
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1537
Dr. Kali Xu, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-8358
Dr. Kambrie Kato, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (808) 292-5358
Dr. Karen Brown, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-2096
Dr. Katherine Cecil, MD
San Francisco, CA · $29 in drug and device payments (2025) · (415) 476-8358
Dr. Kevin Mcgill
San Francisco, CA · $198 in drug and device payments (2025) · (914) 960-9716
Dr. Kevin Oh, MD
San Francisco, CA · $675 in drug and device payments (2025) · (415) 600-3232
Dr. Kevin Sweetwood, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-8358
Dr. Kevin Zand, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 502-2673
Dr. Kimberly Kallianos, M.D.
San Francisco, CA · $14,551 in drug and device payments (2025) · (617) 459-9393
Dr. Kirk Moon, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 750-6025
Dr. Lauren Raher, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-8358
Dr. Leo Jia, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-9056
Dr. Leo Sugrue, M.D., PH.D.
San Francisco, CA · $1,967 in drug and device payments (2025) · (415) 476-8358
Dr. Leszek Pisinski, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1575
Dr. Liang Ge, MD
San Francisco, CA · No drug or device payments recorded (2025) · (628) 206-8020
Dr. Liina Poder, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1354
Dr. Lin Bailey, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (915) 577-6072
Dr. Loretta Strachowski, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 206-5871
Dr. Lori Schoenbrun, M.D
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1968
Dr. Lynne Steinbach, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-2096
Dr. Maggie Chung
San Francisco, CA · $42 in drug and device payments (2025) · (628) 206-8020
Dr. Mai Le, MD
San Francisco, CA · No drug or device payments recorded (2025)
Dr. Manav Kumar
San Francisco, CA · No drug or device payments recorded (2025) · (415) 885-7464
Dr. Maowen Hu, MD
San Francisco, CA · No drug or device payments recorded (2025) · (786) 683-7062
Dr. Marc-fernand Erian
San Francisco, CA · $463 in drug and device payments (2025) · (415) 885-7758
Dr. Marc Kohli, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 502-2673
Dr. Marianne Moon, MD
San Francisco, CA · No drug or device payments recorded (2025) · (203) 885-7464
Dr. Mariela Resendes, M.D.
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1079
Dr. Mark Mcarthur, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-1968
Dr. Mark Wilson, M.D.
San Francisco, CA · $213 in drug and device payments (2025) · (415) 353-1300
Dr. Mary Getz
San Francisco, CA · No drug or device payments recorded (2025) · (415) 353-9056
Dr. Masis Isikbay, MD
San Francisco, CA · No drug or device payments recorded (2025) · (415) 476-1239

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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Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Diagnostic Radiology in California? Get featured.