HealthcareDiscovery.AI / Doctors / California / Antioch / Radiation Oncology

Radiation Oncology in Antioch, California

Data updated monthly · Last refresh September 2026

3 Radiation Oncology providers practice in Antioch. Listings are drawn from federal public records and are not endorsements.

Radiation Oncology providers in Antioch

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. Joseph Beck, M.D.
Antioch, CA · No drug or device payments recorded (2025) · (925) 778-0679
Dr. Mariam Korah, MD
Antioch, CA · $2,314 in drug and device payments (2025) · Telehealth · (925) 778-0679
Dr. Zahora Ally, MD
Antioch, CA · $1,684 in drug and device payments (2025) · Telehealth · (925) 778-0679

Common questions

How many Radiation Oncology providers are in Antioch, California?

There are 3 Radiation Oncology providers with active NPI records practicing in Antioch, 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 Antioch 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.