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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. Gregory Thalken, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Gregory Vanley, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (562) 491-9167
Dr. Gretchen Stipec, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-7880
Dr. Hasti Larjani, MD
Long Beach, CA · $373 in drug and device payments (2025) · (562) 933-1550
Dr. James Hyun, MD
Long Beach, CA · $25 in drug and device payments (2025) · (562) 912-2507
Dr. Jane Hur, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Janice Hwang, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Jonathan Fournier, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Justin Mccoy, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Keith Burnett, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (949) 784-2303
Dr. Kourosh Nourisamie, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 912-2507
Dr. Macarthur Drake, M.D.
Long Beach, CA · $59 in drug and device payments (2025) · (562) 933-1550
Dr. Mahendra Panchal, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Marcin Kopec, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Mark Chambers, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 826-8000
Dr. Matthew Benedict, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Michael Liu
Long Beach, CA · $2,002 in drug and device payments (2025) · Telehealth · (562) 933-1550
Dr. Michael Weller, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Monica Rivera
Long Beach, CA · No drug or device payments recorded (2025) · (562) 826-8000
Dr. Murali Krishna Meka, M.D
Long Beach, CA · $6,754 in drug and device payments (2025) · (562) 933-1550
Dr. Natalia Zarzhevsky, MD, PHD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Natalie Sardjono, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-7880
Dr. Peyman Kangavari, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-2000
Dr. Philip Eisinger, DO
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Reza Lotfi, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (562) 826-8000
Dr. Richard Chai, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Richard Hollis, DO
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Robert Farrell, MD
Long Beach, CA · $62 in drug and device payments (2025) · (562) 933-1550
Dr. Robert Lindsey, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (562) 498-6322
Dr. Roi Lotan, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Ryan Jean-baptiste, M.D.
Long Beach, CA · $30,524 in drug and device payments (2025) · Telehealth · (562) 933-1550
Dr. Samih Elakkad, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Samuel Fenichel, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 431-5750
Dr. Sireesha Iruvuri, M.D.
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Timothy Bell, MD
Long Beach, CA · $23 in drug and device payments (2025) · (562) 912-2507
Dr. Ziad Deeb, MD
Long Beach, CA · No drug or device payments recorded (2025) · (562) 933-1550
Dr. Benjamin Cowan, MD
Los Alamitos, CA · No drug or device payments recorded (2025) · (714) 826-6400
Dr. Denis Bolton, D.O.
Los Alamitos, CA · No drug or device payments recorded (2025) · (714) 826-6400
Dr. George Morrison, DO
Los Alamitos, CA · No drug or device payments recorded (2025) · (949) 263-8620
Dr. Jhemon Lee, MD
Los Alamitos, CA · No drug or device payments recorded (2025) · (562) 598-1311
Dr. Kenneth Brown, MD
Los Alamitos, CA · No drug or device payments recorded (2025) · (714) 826-6400
Dr. Milan Andrus, M.D.
Los Alamitos, CA · No drug or device payments recorded (2025) · (562) 430-7675
Dr. Richard Pederson, MD
Los Alamitos, CA · No drug or device payments recorded (2025) · (562) 799-3294
Dr. Richard Shin, MD
Los Alamitos, CA · No drug or device payments recorded (2025) · (714) 826-6400
Dr. Vincent Polek, MD
Los Alamitos, CA · No drug or device payments recorded (2025) · (562) 799-3294
Dr. Anita Rich, M.D.
Los Altos, CA · No drug or device payments recorded (2025) · (650) 963-9222
Dr. Elizabeth Schneider, MD
Los Altos, CA · No drug or device payments recorded (2025) · (408) 358-6881
Dr. Elizabeth Guillaumin, M.D.
Los Altos Hills, CA · No drug or device payments recorded (2025) · (650) 917-1214
Dr. Aaron Schein, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 442-8541
Dr. Aarti Luhar, M.D.
Los Angeles, CA · $167 in drug and device payments (2025) · Telehealth · (310) 267-8758

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.