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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. Nilofar Firooznia, MD
San Diego, CA · $34 in drug and device payments (2025) · (619) 295-9729
Dr. Nima Azimi
San Diego, CA · No drug or device payments recorded (2025) · (858) 939-3600
Dr. Noeun Oh, MD
San Diego, CA · No drug or device payments recorded (2025) · (619) 543-7636
Dr. Norman Chen, MD
San Diego, CA · $103 in drug and device payments (2025) · (858) 565-0950
Dr. Noushin Vahdat, MD
San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273
Dr. Omar Yaghi
San Diego, CA · $26 in drug and device payments (2025) · (619) 543-3534
Dr. Paritosh Khanna, MD
San Diego, CA · $143 in drug and device payments (2025) · (858) 565-0950
Dr. Patrick Henderson, MD
San Diego, CA · $53 in drug and device payments (2025) · (803) 422-7377
Dr. Patrick Lee, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 653-6130
Dr. Paula Habib, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 543-7636
Dr. Pauline Chu, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 552-8585
Dr. Paul Jaffray, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273
Dr. Paul Manning, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273
Dr. Paul Schulman, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 997-8881
Dr. Peter Kruk, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 565-0950
Dr. Phillip Reich, M.D., MBA
San Diego, CA · No drug or device payments recorded (2025) · (619) 295-9729
Dr. Priya Patel, M.B.CH.B
San Diego, CA · $93 in drug and device payments (2025) · (800) 926-8273
Dr. Rahul Patel, M.D.
San Diego, CA · $24 in drug and device payments (2025) · (858) 678-6886
Dr. Rakesh Patel, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273
Dr. Ramin Saket, M.D
San Diego, CA · No drug or device payments recorded (2025) · (619) 543-3534
Dr. Ramon Saucedo
San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273
Dr. Randall Baldassarre, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273
Dr. Randy Fanous, M.D
San Diego, CA · $15 in drug and device payments (2025) · (858) 657-7000
Dr. Rashid Barnawi, MBBS.
San Diego, CA · No drug or device payments recorded (2025) · (619) 543-7242
Dr. Ratana Bhardwaj, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 454-4235
Dr. Rebecca Rakow-penner
San Diego, CA · $682 in drug and device payments (2025) · (650) 269-7132
Dr. Renee Glass, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 819-6577
Dr. Richard Campin, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 532-8670
Dr. Richard Montgomery, MD
San Diego, CA · No drug or device payments recorded (2025) · (619) 532-8670
Dr. Richard Rossin, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (208) 416-2932
Dr. Rita Gidwaney, M.D.
San Diego, CA · $4,164 in drug and device payments (2025) · (800) 926-8273
Dr. Robert Flynn, MD
San Diego, CA · $330 in drug and device payments (2025) · (858) 565-0950
Dr. Robert Fortuna, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 546-3800
Dr. Robert Haynes, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 446-1586
Dr. Robert Marks, M.D.
San Diego, CA · $23 in drug and device payments (2025) · (800) 926-8273
Dr. Robert Parkinson, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (952) 595-1242
Dr. Robert Prager, MD
San Diego, CA · No drug or device payments recorded (2025) · (858) 565-0950
Dr. Robert Yacullo, MD
San Diego, CA · No drug or device payments recorded (2025) · (858) 565-0950
Dr. Ronald Asto
San Diego, CA · No drug or device payments recorded (2025) · (858) 552-8585
Dr. Ronald Boucher, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 532-6460
Dr. Ronnie Thomas, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 528-5538
Dr. Rosalind Dietrich, MD
San Diego, CA · No drug or device payments recorded (2025) · (619) 543-6766
Dr. Ross Schwartzberg, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 295-9729
Dr. Rowena Tena, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 295-9729
Dr. Russell Low, MD
San Diego, CA · No drug or device payments recorded (2025) · (858) 565-0950
Dr. Ryan Frederiksen, MD
San Diego, CA · No drug or device payments recorded (2025) · (805) 403-9924
Dr. Saba Naamo, MD
San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273
Dr. Sagar Desai
San Diego, CA · No drug or device payments recorded (2025) · (845) 825-1602
Dr. Samar Naamo, MD
San Diego, CA · $143 in drug and device payments (2025) · (800) 926-8273
Dr. Sammer Jazbeh, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273

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.