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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. Julie An, MD
El Centro, CA · $20 in drug and device payments (2025) · (800) 926-8273
Dr. Philame Oronan, MD
El Centro, CA · No drug or device payments recorded (2025) · (760) 370-3513
Dr. Ramon Pascual, M.D.
El Centro, CA · No drug or device payments recorded (2025) · (760) 339-7249
Dr. Byron Lais, M.D.
Elk Grove, CA · No drug or device payments recorded (2025) · (916) 691-9236
Dr. Dionesia Adraktas, MD
Elk Grove, CA · No drug or device payments recorded (2025) · (817) 321-0937
Dr. Ajay Pancholy, MD
El Segundo, CA · No drug or device payments recorded (2025) · (424) 290-8004
Dr. Amelia Anderson, M.D.
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Andrew Giorlando, MD
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Andrew Hartz
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Ashley Maru, M.D.
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Brett Heller
El Segundo, CA · No drug or device payments recorded (2025) · (877) 276-9842
Dr. Brian Scanlan, M.D.
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Bryan Hamade, MD
El Segundo, CA · $107 in drug and device payments (2025) · (281) 766-0959
Dr. Cassandra Fernandez, MD
El Segundo, CA · $24 in drug and device payments (2025) · (281) 766-0959
Dr. Christopher Tournade, MD
El Segundo, CA · $29 in drug and device payments (2025) · (281) 766-0959
Dr. David Lamar, M.D.
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Denise Kulesha, MD
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Douglas Ivancsits, MD
El Segundo, CA · No drug or device payments recorded (2025) · (424) 290-8004
Dr. Douglas Rodriguez, MD
El Segundo, CA · $139 in drug and device payments (2025) · (424) 290-8004
Dr. Dustin Meyer, DO
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Eric Tirnauer, M.D.
El Segundo, CA · $161 in drug and device payments (2025) · (424) 290-8004
Dr. Harpreet Grewal, MD
El Segundo, CA · $174 in drug and device payments (2025) · (281) 766-0959
Dr. Hristina Natcheva, M.D.
El Segundo, CA · $53 in drug and device payments (2025) · (244) 290-8004
Dr. James Grim, MD
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Jasmin Harvey, M.D.
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Jessica Misiti, ARNP
El Segundo, CA · $301 in drug and device payments (2025) · (424) 290-8004
Dr. Katie Lester, MD
El Segundo, CA · $44 in drug and device payments (2025) · (281) 766-0959
Dr. Kavitha Case, MD
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Kevin Lee, M.D.
El Segundo, CA · $14 in drug and device payments (2025) · (281) 766-0959
Dr. Kirankumar Sailagundla, MD
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Leelakrishna Nallamshetty, M.D.
El Segundo, CA · $181 in drug and device payments (2025) · (813) 245-5257
Dr. Leonardo Estevez, M.D.
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Marcello Scotti, MD
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Margo Roca, MD
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Mariam Hanna
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Mark Winter
El Segundo, CA · $864 in drug and device payments (2025) · (281) 766-0959
Dr. Michael Marrero, M.D.
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Mitchell Barnes, DO
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Nicholas D'alesio, DO, MPH
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Niketh Bandla, M.D.
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Nisha Rao, MD
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Orlando Ortiz, MD
El Segundo, CA · $360 in drug and device payments (2025) · (281) 766-0959
Dr. Rajendra Kedar, MD
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Randy Chang
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Ricardo Declet-bauzo, MD
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Richard Lastrapes, M.D.
El Segundo, CA · No drug or device payments recorded (2025) · (281) 766-0959
Dr. Richard Lichtenstein, MD
El Segundo, CA · $25 in drug and device payments (2025) · (281) 766-0959
Dr. Robert Zamore, MD
El Segundo, CA · $187 in drug and device payments (2025) · (424) 290-8004
Dr. Rudra Barua, M.D.
El Segundo, CA · No drug or device payments recorded (2025) · (424) 290-8004
Dr. Ryan Harvey, MD
El Segundo, CA · $108 in drug and device payments (2025) · (281) 766-0959

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.