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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. Young Yun, MD
Garden Grove, CA · No drug or device payments recorded (2025) · (714) 636-0133
Dr. Alan Miyamoto, M.D.
Glendale, CA · No drug or device payments recorded (2025) · (818) 247-2095
Dr. Armen Aivazi, MD
Glendale, CA · No drug or device payments recorded (2025) · (310) 222-2345
Dr. Craig Moritz, MD
Glendale, CA · No drug or device payments recorded (2025) · (818) 790-7100
Dr. George Reyes, M.D.
Glendale, CA · No drug or device payments recorded (2025) · (818) 409-8000
Dr. James Engelhart, MD
Glendale, CA · No drug or device payments recorded (2025) · (818) 409-8000
Dr. James Lilley, M.D.
Glendale, CA · No drug or device payments recorded (2025) · (818) 241-3369
Dr. James Wu, MD
Glendale, CA · No drug or device payments recorded (2025) · (818) 507-4139
Dr. Jeanne Lammering, MD
Glendale, CA · No drug or device payments recorded (2025) · (310) 780-6688
Dr. Jeffrey Caverly, MD
Glendale, CA · No drug or device payments recorded (2025) · (818) 409-8000
Dr. Jose Ospina, MD, PHD
Glendale, CA · No drug or device payments recorded (2025) · (818) 409-8000
Dr. Kien Vuu, MD
Glendale, CA · $150 in drug and device payments (2025) · (626) 673-5436
Dr. Linh Chen, MD
Glendale, CA · $39,524 in drug and device payments (2025) · (818) 507-4139
Dr. Marie Arnal, D.O.
Glendale, CA · No drug or device payments recorded (2025) · (818) 409-8000
Dr. Maurice Hale, MD
Glendale, CA · No drug or device payments recorded (2025) · (818) 548-8333
Dr. Sameer Patel, M.D.
Glendale, CA · No drug or device payments recorded (2025) · (818) 790-7100
Dr. Samuel Chen, M.D.
Glendale, CA · No drug or device payments recorded (2025) · (818) 247-2095
Dr. Sepand Salehian, M.D.
Glendale, CA · No drug or device payments recorded (2025) · (818) 409-8000
Dr. Steven Wong, M.D.
Glendale, CA · $109 in drug and device payments (2025) · (818) 241-3369
Dr. Agustinus Suhardja, MD
Glendora, CA · No drug or device payments recorded (2025) · (626) 963-2057
Dr. Omar Khan
Goleta, CA · No drug or device payments recorded (2025) · (805) 689-5722
Dr. Simran Sekhon, M.B.B.S
Granite Bay, CA · $80 in drug and device payments (2025) · (352) 870-8135
Dr. Anna Wilson, D.O.
Grass Valley, CA · No drug or device payments recorded (2025) · (530) 273-2720
Dr. Mark Richey, M.D.
Grass Valley, CA · No drug or device payments recorded (2025) · (530) 274-6107
Dr. Melisa Agness, MD
Grass Valley, CA · No drug or device payments recorded (2025) · (530) 273-2720
Dr. Michael Hallenbeck, M.D.
Grass Valley, CA · No drug or device payments recorded (2025) · (530) 274-6107
Dr. Patricia Niemeyer, M.D.
Grass Valley, CA · No drug or device payments recorded (2025) · (530) 477-4480
Dr. Betsy Holland, M.D.
Greenbrae, CA · No drug or device payments recorded (2025) · (415) 464-8080
Dr. Brian Salmen, M.D.
Greenbrae, CA · No drug or device payments recorded (2025) · (415) 925-7301
Dr. Chad Goodman, M.D.
Greenbrae, CA · No drug or device payments recorded (2025) · (415) 925-7301
Dr. Damon Sacco, M.D.
Greenbrae, CA · No drug or device payments recorded (2025) · (415) 464-8080
Dr. Dennis Orwig, M.D.
Greenbrae, CA · No drug or device payments recorded (2025) · (415) 925-7301
Dr. Donna Hoghooghi, M.D.
Greenbrae, CA · No drug or device payments recorded (2025) · (415) 925-7080
Dr. Jay Kaiser, M.D.
Greenbrae, CA · No drug or device payments recorded (2025) · (415) 461-9033
Dr. Natalya Lvoff, M.D.
Greenbrae, CA · $20 in drug and device payments (2025) · (415) 461-4282
Dr. Peter Smith, M.D.
Greenbrae, CA · $766 in drug and device payments (2025) · (415) 925-7000
Dr. Philip Kurzman, M.D.
Greenbrae, CA · $49 in drug and device payments (2025) · (415) 884-3418
Dr. Ralph Koenker, M.D.
Greenbrae, CA · $109 in drug and device payments (2025) · (415) 925-7000
Dr. Russell Fritz, M.D.
Greenbrae, CA · No drug or device payments recorded (2025) · (415) 884-3415
Dr. William Demartini, M.D.
Greenbrae, CA · No drug or device payments recorded (2025) · (415) 925-7301
Dr. Andrea Mallet-reece, MD
Hacienda Heights, CA · No drug or device payments recorded (2025) · (626) 913-1665
Dr. Daniel Hou, M.D.
Hacienda Heights, CA · No drug or device payments recorded (2025) · (626) 912-1457
Dr. James Thomas, M.D.
Hanford, CA · No drug or device payments recorded (2025) · (800) 627-9314
Dr. Mario Deguchi, MD
Hanford, CA · No drug or device payments recorded (2025) · (559) 783-1181
Dr. Sean Murray, MD
Hanford, CA · $17 in drug and device payments (2025) · (559) 585-5231
Dr. Ajay Rao, M.D.
Harbor City, CA · No drug or device payments recorded (2025) · (310) 517-3141
Dr. Daryl Chen, MD
Harbor City, CA · No drug or device payments recorded (2025) · (310) 257-5859
Dr. Mark Ashkan, M.D.
Harbor City, CA · No drug or device payments recorded (2025) · (510) 717-4999
Dr. Emelina Fa, MD
Hayward, CA · No drug or device payments recorded (2025) · (510) 784-4000
Dr. Ganesan Sriram, MD
Hayward, CA · No drug or device payments recorded (2025) · (510) 784-4000

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.

Related reading on HealthcareDiscovery.AI

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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.