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 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. Thomas Lin, M.D.Rancho Cucamonga, CA · $19 in drug and device payments (2025) ·
(909) 620-8180 Dr. Thuyen Tran, MDRancho Cucamonga, CA · $122 in drug and device payments (2025) ·
(909) 620-8180 Dr. Van Khanh NguyenRancho Cucamonga, CA · No drug or device payments recorded (2025) ·
(909) 620-8180 Dr. Wilbur Sims, M.D.Rancho Cucamonga, CA · No drug or device payments recorded (2025) ·
(909) 620-8180 Dr. Curtis Handler, M.D.Rancho Cucamongo, CA · No drug or device payments recorded (2025) ·
(909) 620-8180 Dr. Joel Block, MDRancho Cucamongo, CA · No drug or device payments recorded (2025) ·
(909) 620-8180 Dr. Adele Fields, MDRancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 773-1574 Dr. Ahmed Mohammed, M.D.Rancho Mirage, CA · $20 in drug and device payments (2025) ·
(760) 674-3850 Dr. Bayani Evangelista, M.D.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 340-3911 Dr. Brandon Burk, M.D.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 773-1251 Dr. Christopher Meoli, DORancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 770-1920 Dr. Deborah Liebman, M.D.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 340-3911 Dr. Dhimiter Kondili, M.D.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 773-2038 Dr. Dinesh Patel, M.D.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 340-3911 Dr. Donna Fletman, M.D.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 340-3911 Dr. Jerry Chang, M.D.Rancho Mirage, CA · $1,212 in drug and device payments (2025) ·
(760) 340-3911 Dr. John Szabo, M.D.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 340-3911 Dr. Jonathan Blevins, M.D.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(949) 263-8620 Dr. Josephine Nguyen, MDRancho Mirage, CA · No drug or device payments recorded (2025) ·
(949) 263-8620 Dr. Joseph Roco, D.O.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 340-3911 Dr. Karin Fu, M.D.Rancho Mirage, CA · $24 in drug and device payments (2025) ·
(760) 340-3911 Dr. Kent Thompson, M.D.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 340-3911 Dr. Kristopher Foreman, MDRancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 340-3911 Dr. Mark Smith, MDRancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 674-3850 Dr. Mehran Elly, M.D., PH.DRancho Mirage, CA · $929 in drug and device payments (2025) ·
(760) 340-3911 Dr. Morton Cohn, M.D.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 340-3911 Dr. Muffadal Taher, M.D.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 340-3911 Dr. Paul Sylvan, M.D.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 773-2038 Dr. Ronald Becker, M.D.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 340-3911 Dr. Samantha Kaura, M.D.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 773-2038 Dr. Stephen Saponaro, MDRancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 636-6798 Dr. Conan Liang, MDRancho Mission Viejo, CA · No drug or device payments recorded (2025) ·
(949) 682-2600 Dr. Jeffrey Dym, MDRancho Mission Viejo, CA · No drug or device payments recorded (2025) ·
(949) 682-2600 Dr. Kenton Kagy, D.O.Rancho Mission Viejo, CA · $17 in drug and device payments (2025) ·
(949) 682-2600 Dr. Patrick Magoon, M.D.Rancho Mission Viejo, CA · $25 in drug and device payments (2025) ·
(949) 682-2600 Dr. Ravi Gupta, M.D.Rancho Mission Viejo, CA · $19 in drug and device payments (2025) ·
(949) 682-2600 Dr. Van Rye, M.D.Rancho Mission Viejo, CA · No drug or device payments recorded (2025) ·
(949) 304-1716 Dr. Yuqi Wang, MDRancho Mission Viejo, CA · No drug or device payments recorded (2025) ·
(805) 456-6349 Dr. Arthur Diamond, MDRancho Palos Verdes, CA · No drug or device payments recorded (2025) ·
(310) 265-8859 Dr. Robert Sweet, M.D.Rancho Santa Fe, CA · No drug or device payments recorded (2025) ·
(858) 914-3096 Dr. Vinton Vint, MDRancho Santa Fe, CA · No drug or device payments recorded (2025) ·
(858) 759-7790 Dr. Danny Casey, M.D.Red Bluff, CA · No drug or device payments recorded (2025) ·
(530) 529-8280 Dr. Irwin Maier, M.D.Red Bluff, CA · No drug or device payments recorded (2025) ·
(952) 595-1100 Dr. Jack Kure, M.D.Red Bluff, CA · No drug or device payments recorded (2025) ·
(530) 529-8280 Dr. Richard Steffens, M.D.Red Bluff, CA · No drug or device payments recorded (2025) ·
(530) 529-8280 Dr. Adam Attoun, D.O.Redding, CA · No drug or device payments recorded (2025) ·
(530) 243-1236 Dr. Amjad Rasheed, M.D.Redding, CA · No drug or device payments recorded (2025) ·
(530) 243-1236 Dr. Andrew Best, M.D.Redding, CA · No drug or device payments recorded (2025) ·
(530) 243-1236 Dr. Danford Bickmore, M.D.Redding, CA · No drug or device payments recorded (2025) ·
(530) 243-1236 Dr. Dilan Samarawickrama, M.D.Redding, CA · No drug or device payments recorded (2025) ·
(530) 243-1236 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.
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