Radiation Oncology in Orange, California
Data updated monthly · Last refresh September 2026
19 Radiation Oncology providers practice in Orange. Listings are drawn from federal public records and are not endorsements.
Radiation Oncology providers in Orange
Listed alphabetically. 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. Aaron Simon, MD, PHDOrange, CA · $10,099 in drug and device payments (2025) · Telehealth ·
(714) 456-8074 Dr. Allen Chen, M.D.Orange, CA · $1,260 in drug and device payments (2025) ·
(714) 880-7812 Dr. Caressa Hui, MDOrange, CA · $119 in drug and device payments (2025) · Telehealth ·
(714) 456-8888 Dr. Christina Abel, NURSE PRACTITIONER Dr. Eric Chen, MDOrange, CA · $119 in drug and device payments (2025) · Telehealth ·
(657) 579-3129 Dr. Erin Healy, MDOrange, CA · $62 in drug and device payments (2025) · Telehealth ·
(714) 880-7812 Dr. Garrett Harada, MDOrange, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 456-8000 Dr. Jason Wong, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-5651 Dr. Jeffrey Kuo, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-8978 Dr. Jeremy Harris, MDOrange, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 456-8095 Dr. Jino Park, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-5651 Dr. Krishna Hanubal, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-8000 Dr. Megan Daly, M.D.Orange, CA · $10,308 in drug and device payments (2025) · Telehealth ·
(714) 456-8888 Dr. Robert Hesselgesser, MD Dr. Shera Feinstein, MDOrange, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 456-8888 Dr. Steven Davis, M.D.Orange, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 880-7812 Common questions
How many Radiation Oncology providers are in Orange, California?There are 19 Radiation Oncology providers with active NPI records practicing in Orange, according to federal NPPES data refreshed monthly.
Where does this data come from?Provider records 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.
All specialties in Orange Radiation Oncology across California
