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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. Khadija Aziz, M.D
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 315-1000
Dr. Khalid Javeri, M.D.
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 315-1000
Dr. Kim Nguyen, M.D.
Santa Monica, CA · $37 in drug and device payments (2025) · (866) 487-7621
Dr. Kiran Gangadhar, MD
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 315-1000
Dr. Kourosh Naeini
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 315-1000
Dr. Lauren Fitzgerald, RT R
Santa Monica, CA · No drug or device payments recorded (2025) · (774) 242-4250
Dr. Leonard Ong, M.D.
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 315-1000
Dr. Maikel Mankarious, M.D./M.B.A.
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 315-1000
Dr. Mark Stein, M.D.
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 828-9640
Dr. Nhan Tran, MD
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 264-9000
Dr. Omar Arafat, M.D.
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 315-1000
Dr. Omid Jafari, MD
Santa Monica, CA · $1,151 in drug and device payments (2025) · (310) 829-9788
Dr. Peter Joyce, MD
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 264-9000
Dr. Richard Chang, M.D.
Santa Monica, CA · $152 in drug and device payments (2025) · (310) 260-8581
Dr. Richard Goldman, MD
Santa Monica, CA · $17 in drug and device payments (2025) · (310) 264-9000
Dr. Rita Perrella, MD
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 613-5505
Dr. Robert Gray, MD
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 264-9000
Dr. Robert Lufkin, MD
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 227-4126
Dr. Ross Goldberg, MD
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 394-2761
Dr. Roxanne Chan, MD
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 456-7828
Dr. Sunil Ram, MD
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 315-1000
Dr. Theodore Hittle, M.D.
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 264-9000
Dr. Timothy Carmody, M. D.
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 315-1000
Dr. Vicki Schiller, M.D.
Santa Monica, CA · $20 in drug and device payments (2025) · (310) 264-9000
Dr. Waleed Qaisi, MD
Santa Monica, CA · No drug or device payments recorded (2025) · (310) 315-1000
Dr. Alvaris Duffis, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 576-4475
Dr. Anthony Sajewicz, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 521-4480
Dr. Anusuya Mokashi, M.D.
Santa Rosa, CA · $210 in drug and device payments (2025) · (707) 546-4062
Dr. Barbara Cohn, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 546-4062
Dr. Bradley Restel, M.D.
Santa Rosa, CA · $140 in drug and device payments (2025) · (707) 521-4480
Dr. Brendan Bottari, M.D.
Santa Rosa, CA · $101 in drug and device payments (2025) · (707) 546-4062
Dr. Christopher Trebino
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 521-4480
Dr. Clifford Sweet, MD
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 569-4740
Dr. Craig Polson, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 546-4062
Dr. Daniel Doran, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 546-4062
Dr. Daniel Penn, MD
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 571-4000
Dr. David Feinberg, M.D.
Santa Rosa, CA · $10,897 in drug and device payments (2025) · (707) 525-6124
Dr. David Schmidt, M.D.
Santa Rosa, CA · $55 in drug and device payments (2025) · (707) 546-4062
Dr. Dona Brumbley, RT (R) (CT)
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 523-7025
Dr. Douglas Munro, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 546-4062
Dr. Durba Dutta, MD
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 521-4480
Dr. Frank Modic, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 546-4062
Dr. Gary Roper, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 521-4480
Dr. Gene Babbitt, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 576-4475
Dr. Gregory Penning, R.T.(R)(CT)ARRT
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 576-4000
Dr. Jeremy Scott Lomax, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 546-4062
Dr. Jesse Rael, MD
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 521-4480
Dr. Joel Smith, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 571-4205
Dr. John Mcgovern, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 546-4062
Dr. Katherine Vickery, MD
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 571-4000

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.

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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.