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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. Gary Spoto, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 658-6500
Dr. Gbenga Shogbesan, MD
San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273
Dr. Gene Heard, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 653-6130
Dr. Geoffrey Criqui, MD
San Diego, CA · No drug or device payments recorded (2025) · (619) 528-6087
Dr. George Leopold, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 543-3405
Dr. George Scher, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 446-1586
Dr. Gilbert Boswell, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273
Dr. Giuseppe Ammirati, M.D.
San Diego, CA · $1,006 in drug and device payments (2025) · Telehealth · (619) 543-3405
Dr. Giuseppe Carotenuto, MD
San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273
Dr. Glenn Tsukada, M.D.
San Diego, CA · $22 in drug and device payments (2025) · (619) 295-9729
Dr. Gordon Zink-brody, M.D.
San Diego, CA · $22 in drug and device payments (2025) · (619) 295-9729
Dr. Grant Holz, MD
San Diego, CA · No drug or device payments recorded (2025) · (877) 737-4636
Dr. Gregg Alzate, MD
San Diego, CA · $39,169 in drug and device payments (2025) · (858) 565-0950
Dr. Gregory Anderson, MD
San Diego, CA · No drug or device payments recorded (2025) · (919) 684-8111
Dr. Hamidreza Torshizy, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 543-3534
Dr. Han Yuan Alice Chong, MD
San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273
Dr. Harrison Wang, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (714) 331-0133
Dr. Heather Schultz, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273
Dr. Howard Bear, MD
San Diego, CA · $149 in drug and device payments (2025) · (858) 565-0950
Dr. Howard Schiffman, MD
San Diego, CA · No drug or device payments recorded (2025) · (858) 565-0950
Dr. Jack Resnick, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 446-1586
Dr. Jade De Guzman, MD
San Diego, CA · No drug or device payments recorded (2025) · (619) 543-2218
Dr. James Cooper, M.D.
San Diego, CA · $22 in drug and device payments (2025) · (866) 558-4320
Dr. James Ellingson, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 528-7799
Dr. James Lyon, MD
San Diego, CA · $1,415 in drug and device payments (2025) · (858) 565-0950
Dr. James Mucciarone, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 556-3563
Dr. James Wolff, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 543-7636
Dr. Janet Amundson, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (858) 546-3800
Dr. Jane Yin, MD
San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273
Dr. Jared Edwards, MD
San Diego, CA · No drug or device payments recorded (2025) · (619) 532-8666
Dr. Jared Heimbigner, D.O.
San Diego, CA · No drug or device payments recorded (2025) · (619) 584-1612
Dr. Jason Pierce, DO
San Diego, CA · $104 in drug and device payments (2025) · (800) 926-8273
Dr. Jason Sweet, MD
San Diego, CA · No drug or device payments recorded (2025) · (610) 955-9732
Dr. Jay Federhart, MD
San Diego, CA · $320 in drug and device payments (2025) · (800) 926-8273
Dr. Jeffrey Koning, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 543-2218
Dr. Jeffrey Lovin, MD
San Diego, CA · No drug or device payments recorded (2025) · (858) 442-0535
Dr. Jeffrey Moy, D.O.
San Diego, CA · No drug or device payments recorded (2025) · (619) 532-9729
Dr. Jennifer Foley, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 532-8038
Dr. Jennifer Karunamuni, MD
San Diego, CA · No drug or device payments recorded (2025) · (800) 926-8273
Dr. Jenny Yan
San Diego, CA · No drug or device payments recorded (2025) · (858) 939-3600
Dr. Jeremy Kuniyoshi, MD
San Diego, CA · No drug or device payments recorded (2025) · (619) 543-2218
Dr. Jill Furubayashi, M.D.
San Diego, CA · $34 in drug and device payments (2025) · (858) 546-3800
Dr. Joanna Krause, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (301) 943-6200
Dr. Joel Sigeti, MD
San Diego, CA · No drug or device payments recorded (2025) · (858) 565-0950
Dr. Joel Sokoloff, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 229-2299
Dr. John Amberg, MD
San Diego, CA · No drug or device payments recorded (2025) · (858) 565-0950
Dr. John Dente, MD
San Diego, CA · $67 in drug and device payments (2025) · (858) 565-0950
Dr. John Doemeny, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 295-9729
Dr. John Hauschildt, MD
San Diego, CA · No drug or device payments recorded (2025) · (858) 565-0950
Dr. John Healy, M.D.
San Diego, CA · No drug or device payments recorded (2025) · (619) 543-3856

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.