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Radiation Oncology in San Jose, California

Data updated monthly · Last refresh September 2026

11 Radiation Oncology providers practice in San Jose. Listings are drawn from federal public records and are not endorsements.

Radiation Oncology providers in San Jose

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. Catherine Su, MD
San Jose, CA · $63 in drug and device payments (2025) · (408) 977-4673
Dr. Constance Bowie, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 947-2995
Dr. Elizabeth Dubose, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 984-7226
Dr. Gail Bellman, M.D.
San Jose, CA · No drug or device payments recorded (2025) · (408) 947-2500
Dr. Gregory Colburn, MD
San Jose, CA · No drug or device payments recorded (2025) · (408) 947-2995
Dr. Kaveh Zakeri, M.D.
San Jose, CA · $1,028 in drug and device payments (2025) · (408) 885-6300
Dr. Ly Do, M.D.
San Jose, CA · $1,645 in drug and device payments (2025) · (408) 729-4673
Dr. Morteza Dowlatshahi, M.D.
San Jose, CA · $1,686 in drug and device payments (2025) · (408) 729-4673
Dr. Susan Hiniker, M.D.
San Jose, CA · $35 in drug and device payments (2025) · Telehealth · (408) 885-6305
Dr. Tri Do, MD
San Jose, CA · $48 in drug and device payments (2025) · (408) 835-9601
Dr. Xingzhe Li
San Jose, CA · $19 in drug and device payments (2025) · Telehealth · (408) 885-5000

Common questions

How many Radiation Oncology providers are in San Jose, California?

There are 11 Radiation Oncology providers with active NPI records practicing in San Jose, 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 San Jose Radiation Oncology across California

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
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.