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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. Richard Cho, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 538-6731
Dr. Richard Moran, RPA
Orange, CA · No drug or device payments recorded (2025) · (714) 288-5400
Dr. Ridgely Meyers, M.D.
Orange, CA · $32 in drug and device payments (2025) · (714) 456-6595
Dr. Ryan Wycliffe
Orange, CA · No drug or device payments recorded (2025) · (714) 880-7812
Dr. Samir Shah, M.D.
Orange, CA · $25 in drug and device payments (2025) · (714) 571-5000
Dr. Samuel Yu, M.D.
Orange, CA · No drug or device payments recorded (2025) · (847) 990-0353
Dr. Scott Fleming, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 456-8888
Dr. Sohrab Nazertehrani, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 880-7812
Dr. Stanley Nakamoto, M.D.
Orange, CA · No drug or device payments recorded (2025) · (714) 538-6731
Dr. Steve Hom, M.D.
Orange, CA · No drug or device payments recorded (2025) · (714) 456-6579
Dr. Susan Snyder, M.D.
Orange, CA · No drug or device payments recorded (2025) · (714) 538-6731
Dr. Tariq Hameed, MD
Orange, CA · $91 in drug and device payments (2025) · (714) 456-8888
Dr. Thangavijayan Bosemani, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 456-7004
Dr. Thanh Huong T Nguyen, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 456-8978
Dr. Thong H Nguyen, MD
Orange, CA · No drug or device payments recorded (2025) · (714) 456-8978
Dr. Trien Dang, M.D.
Orange, CA · No drug or device payments recorded (2025) · (626) 675-3929
Dr. Tri Ngo, M.D.
Orange, CA · $30 in drug and device payments (2025) · (714) 456-3685
Dr. Vadim Chudnovsky, M.D.
Orange, CA · No drug or device payments recorded (2025) · (714) 633-0011
Dr. Wesley Oh
Orange, CA · No drug or device payments recorded (2025) · (714) 456-2986
Dr. William Holmes, M.D.
Orange, CA · No drug or device payments recorded (2025) · (714) 538-6731
Dr. William Velick, M.D.
Orange, CA · No drug or device payments recorded (2025) · (714) 538-6731
Dr. Yasuyuki Pham
Orange, CA · No drug or device payments recorded (2025) · (714) 456-6579
Dr. Yousra Abueleneen
Orange, CA · No drug or device payments recorded (2025) · (714) 456-6921
Dr. David Hansen, M.D.
Orinda, CA · No drug or device payments recorded (2025) · (925) 254-1328
Dr. Mark Larsen, M.D.
Orinda, CA · No drug or device payments recorded (2025) · (925) 258-4300
Dr. Richard Levey, M.D.
Oroville, CA · $21 in drug and device payments (2025) · (530) 532-8550
Dr. Behzad Noorbehesht, M.D.
Oxnard, CA · $48 in drug and device payments (2025) · (805) 604-9500
Dr. Irwin Grossman, M.D.
Oxnard, CA · No drug or device payments recorded (2025) · (805) 988-0616
Dr. Mark Mitchell, M.D.
Oxnard, CA · No drug or device payments recorded (2025) · (805) 988-0616
Dr. Paul Koscheski, MD
Oxnard, CA · No drug or device payments recorded (2025) · (310) 805-1667
Dr. Theodore Glaessner, M.D.
Pacific Palisades, CA · No drug or device payments recorded (2025) · (310) 454-4243
Dr. Christopher Hancock, M.D.
Palm Desert, CA · $13,319 in drug and device payments (2025) · (760) 776-8989
Dr. Donald Wade, MD
Palm Desert, CA · No drug or device payments recorded (2025) · (760) 346-6413
Dr. Edward Schulte, M.D.
Palm Desert, CA · No drug or device payments recorded (2025) · (951) 304-9779
Dr. Megan Foster, M.D.
Palm Desert, CA · No drug or device payments recorded (2025) · (760) 779-0906
Dr. Ronald Taylor, MD
Palm Desert, CA · No drug or device payments recorded (2025) · (760) 346-6413
Dr. Sheila Wilson, MD
Palm Desert, CA · No drug or device payments recorded (2025) · (760) 674-8800
Dr. Sydney Stevens, MD
Palm Desert, CA · No drug or device payments recorded (2025) · (760) 346-6413
Dr. Barbara Hamilton, M.D.
Palm Springs, CA · $993 in drug and device payments (2025) · (760) 778-5946
Dr. Barry Mantell, M.D.
Palm Springs, CA · No drug or device payments recorded (2025) · (760) 464-3892
Dr. Charles Yoo, M.D.
Palm Springs, CA · No drug or device payments recorded (2025) · (949) 263-8620
Dr. Abbas Charlie, DO
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 723-4000
Dr. Alexander Habibian, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 321-4121
Dr. Amirhossein Sarrami, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 497-8000
Dr. Andrew Cummings
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 493-5000
Dr. Andrew Kim, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 853-2955
Dr. Anjeza Chukus, M.D
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 724-2728
Dr. Ashley Hastings-robinson, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 853-2055
Dr. Ashwini Zenooz, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 391-9705
Dr. Chandan Misra
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 493-5000

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.