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. Simon Abramson, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 852-3274 Dr. Thomas Osborne, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 493-5000 Dr. Tracey Dellaripa, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 321-4121 Dr. Vida Campbell, M.D.Palo Alto, CA · No drug or device payments recorded (2025) ·
(650) 853-2955 Dr. Vythao Tran, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(818) 458-1142 Dr. William Virgen, R.T. (R)Palo Alto, CA · No drug or device payments recorded (2025) ·
(650) 493-5000 Dr. Woojin Kim, MDPalo Alto, CA · $5,434 in drug and device payments (2025) ·
(650) 493-5000 Dr. Yueyang Guo, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 497-8000 Dr. Yu-ping Loh, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 321-4121 Dr. Zachary Plotz, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 497-8000 Dr. Thomas Gandy, MDPalo Cedro, CA · No drug or device payments recorded (2025) ·
(530) 547-3697 Dr. Peter Herwitt, M.D.Palos Verdes Estates, CA · No drug or device payments recorded (2025) ·
(310) 339-1514 Dr. Eliho Pakravan, M.D.Panorama City, CA · No drug or device payments recorded (2025) ·
(818) 375-2000 Dr. James Choi, MDPanorama City, CA · No drug or device payments recorded (2025) ·
(818) 375-2000 Dr. Andrew King, MEDICAL DOCTORPasadena, CA · $48 in drug and device payments (2025) ·
(626) 397-5139 Dr. Andy Wang, MEDICAL DOCTORPasadena, CA · $62 in drug and device payments (2025) ·
(626) 397-5139 Dr. Angelos Konstas, MD, PHDPasadena, CA · $158 in drug and device payments (2025) ·
(626) 397-5139 Dr. Aram Salem, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(310) 602-5020 Dr. Binh Tran, MDPasadena, CA · $35 in drug and device payments (2025) ·
(626) 397-5139 Dr. Christopher Hedley, MEDICAL DOCTORPasadena, CA · $259 in drug and device payments (2025) ·
(626) 397-5139 Dr. David Bryan, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 793-6141 Dr. Gita Varaprasathan, M.D.Pasadena, CA · $49 in drug and device payments (2025) ·
(626) 397-5139 Dr. Hanna Tomsan, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5000 Dr. Heather Moreno, M.D.Pasadena, CA · $28 in drug and device payments (2025) ·
(626) 793-6141 Dr. Howard Marx, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 398-7642 Dr. January Lopez, MDPasadena, CA · $1,008 in drug and device payments (2025) ·
(949) 236-8620 Dr. Jimmy Kang, M.D.Pasadena, CA · $69 in drug and device payments (2025) ·
(626) 397-5139 Dr. Jinha Park, M.D., PH.D.Pasadena, CA · $483 in drug and device payments (2025) ·
(626) 397-5139 Dr. Jon Foran, MEDICAL DOCTORPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5139 Dr. Lakshmi Tegulapalle, D.O.Pasadena, CA · $170 in drug and device payments (2025) ·
(626) 397-5139 Dr. Leonard Petrus, MEDICAL DOCTORPasadena, CA · $69 in drug and device payments (2025) ·
(626) 397-5139 Dr. Luis Gutierrez, M.D.Pasadena, CA · $87 in drug and device payments (2025) ·
(626) 397-5139 Dr. Mark Yeh, MEDICAL DOCTORPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5139 Dr. Michael Lee, MDPasadena, CA · $223 in drug and device payments (2025) ·
(626) 795-8051 Dr. Michael Quinn, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 755-7054 Dr. Navid Moradshahi, M.D.Pasadena, CA · $28 in drug and device payments (2025) ·
(626) 397-5188 Dr. Nehal Patel, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 405-7914 Dr. Pia Luedtke, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5139 Dr. Raymond Wong, MEDICAL DOCTORPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5139 Dr. Reema Munir, MDPasadena, CA · $69 in drug and device payments (2025) ·
(626) 397-5139 Dr. Richard Reed, MEDICAL DOCTORPasadena, CA · $14 in drug and device payments (2025) ·
(626) 397-5139 Dr. Saadia Chaudhary, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5139 Dr. Sean Bowman, M.D.Pasadena, CA · $3,078 in drug and device payments (2025) ·
(626) 397-5188 Dr. Susie Kim, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 319-7429 Dr. Terry Becker, MEDICAL DOCTORPasadena, CA · No drug or device payments recorded (2025) ·
(626) 793-8189 Dr. Una Morris, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 405-8070 Dr. Victoria Yiu-chiu, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 564-1180 Dr. Vivian Mccorvey, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5139 Dr. Warren Lam, MEDICAL DOCTORPasadena, CA · $30 in drug and device payments (2025) ·
(626) 397-5139 Dr. Vananh Nguyen, MDPlacentia, CA · No drug or device payments recorded (2025) ·
(714) 348-8301 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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