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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. Steven Merandi, M.D.
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Steven Portale, M.D.
El Segundo, CA · No drug or device payments recorded (2025) · (813) 250-2506
Dr. Te-jung Tsai
El Segundo, CA · $127 in drug and device payments (2025) · (281) 766-0959
Dr. Todd Standley, MD
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Yashodeep Jadhav, M.D.,M.P.H.
El Segundo, CA · No drug or device payments recorded (2025) · (570) 213-5571
Dr. Edwin Rodgers, M.D.
Encino, CA · No drug or device payments recorded (2025) · (818) 981-7475
Dr. Hedayat Golcheh, M.D.
Encino, CA · No drug or device payments recorded (2025) · (818) 905-7323
Dr. Joseph Saucier, MD
Encino, CA · No drug or device payments recorded (2025) · (310) 301-6800
Dr. Nader Golian, MD
Encino, CA · No drug or device payments recorded (2025) · (818) 835-9451
Dr. Patrick Alore, M.D.
Encino, CA · $262 in drug and device payments (2025) · (818) 933-2020
Dr. Thomas Herbold, MD
Encino, CA · No drug or device payments recorded (2025) · (818) 986-3472
Dr. Allen Nalbandian, M.D.
Escondido, CA · No drug or device payments recorded (2025) · (858) 554-2626
Dr. Amar Amin, MD
Escondido, CA · $135 in drug and device payments (2025) · Telehealth · (760) 291-6700
Dr. James Esther, M.D.
Escondido, CA · No drug or device payments recorded (2025) · (760) 739-5400
Dr. Jeremy Stupin, M.D
Escondido, CA · No drug or device payments recorded (2025) · (442) 281-3000
Dr. Michael Wang
Escondido, CA · No drug or device payments recorded (2025) · (619) 714-9100
Dr. Philip Eaton, D.O.
Escondido, CA · No drug or device payments recorded (2025) · (442) 281-5000
Dr. Raymond Sung, M.D.
Escondido, CA · No drug or device payments recorded (2025) · (760) 739-5400
Dr. Thomas Goergen, M.D.
Escondido, CA · No drug or device payments recorded (2025) · (760) 739-5400
Dr. Abraham Pera, DO
Eureka, CA · No drug or device payments recorded (2025) · (707) 442-3704
Dr. Dean Holland, MD
Eureka, CA · No drug or device payments recorded (2025) · (707) 442-3704
Dr. Donald Wheeler, M.D.
Eureka, CA · No drug or device payments recorded (2025) · (707) 445-5431
Dr. James Moore, M.D.
Eureka, CA · No drug or device payments recorded (2025) · (707) 445-5431
Dr. Matthew Fluke, MD
Eureka, CA · No drug or device payments recorded (2025) · (707) 442-7814
Dr. Richard Greaney, MD
Eureka, CA · No drug or device payments recorded (2025) · (707) 442-3704
Dr. Timothy Dalsaso, MD
Eureka, CA · $28 in drug and device payments (2025) · (707) 442-7814
Dr. Bryson Borg, MD
Fairfield, CA · No drug or device payments recorded (2025) · (855) 292-1401
Dr. James Bronk, M.D.
Fairfield, CA · No drug or device payments recorded (2025) · (707) 429-3600
Dr. James Mcmahon, M.D.
Fairfield, CA · No drug or device payments recorded (2025) · (707) 429-3600
Dr. Robert Bloom, M.D.
Fairfield, CA · No drug or device payments recorded (2025) · (925) 296-7156
Dr. Stephen Farrell, MD
Fairfield, CA · No drug or device payments recorded (2025) · (707) 427-4000
Dr. William Gonser, M.D.
Fairfield, CA · No drug or device payments recorded (2025) · (707) 464-6510
Dr. David Nakamura, M.D.
Folsom, CA · No drug or device payments recorded (2025) · (916) 986-5230
Dr. David Zezoff, DO
Folsom, CA · $402 in drug and device payments (2025) · (916) 342-1744
Dr. Paul Cripe, M.D.
Folsom, CA · No drug or device payments recorded (2025) · (916) 986-5200
Dr. Adam Bauer, M.D.
Fontana, CA · No drug or device payments recorded (2025) · (909) 427-7724
Dr. Alexander Ho, M.D.
Fontana, CA · No drug or device payments recorded (2025) · (909) 427-3562
Dr. Jerome Tsai, MD
Fontana, CA · No drug or device payments recorded (2025) · (909) 427-4321
Dr. John Tucker
Fontana, CA · No drug or device payments recorded (2025) · (909) 427-7649
Dr. Saveen Ahuja
Fontana, CA · No drug or device payments recorded (2025) · (909) 427-3914
Dr. Shams Sheikh, MD
Foothill Ranch, CA · No drug or device payments recorded (2025) · (949) 388-3049
Dr. Johnmark Farlett, MD
Fort Irwin, CA · No drug or device payments recorded (2025) · (866) 957-9224
Dr. Francis Cutruzzola, M.D.
Fortuna, CA · No drug or device payments recorded (2025) · (707) 725-3361
Dr. Gary Baker, M D
Fortuna, CA · No drug or device payments recorded (2025) · (707) 725-3361
Dr. Stephen Viltrakis, M D
Fortuna, CA · No drug or device payments recorded (2025) · (707) 725-3361
Dr. William French, M.D.
Fortuna, CA · No drug or device payments recorded (2025) · (707) 725-3361
Dr. Connie Montgomery, MD
Foster City, CA · No drug or device payments recorded (2025) · (909) 224-6336
Dr. Anita Boorman, DO
Fountain Valley, CA · No drug or device payments recorded (2025) · (714) 964-6229
Dr. David Cassidy, M.D.
Fountain Valley, CA · No drug or device payments recorded (2025) · (714) 968-7706
Dr. David Mai, M.D.
Fountain Valley, CA · $269 in drug and device payments (2025) · (714) 968-8998

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.