HealthcareDiscovery.AI / Doctors / Missouri / Columbia / Radiation Oncology

Radiation Oncology in Columbia, Missouri

Data updated monthly · Last refresh September 2026

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

Radiation Oncology providers in Columbia

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. Andrew Leiker
Columbia, MO · $2,242 in drug and device payments (2025) · (573) 874-7800
Dr. Bo Lu, MD, PHD
Columbia, MO · $12 in drug and device payments (2025) · (573) 884-7770
Dr. Gregory Biedermann, MD
Columbia, MO · $8,642 in drug and device payments (2025) · (573) 874-7800
Dr. Harold Johnson, MD
Columbia, MO · $2,433 in drug and device payments (2025) · (573) 874-7800
Dr. Mark Bryer, MD
Columbia, MO · $3,147 in drug and device payments (2025) · (573) 874-7800
Dr. Mohamed Abdelhakiem, MD
Columbia, MO · $88 in drug and device payments (2025) · (573) 884-7770
Dr. Reed Cope, MD
Columbia, MO · $2,717 in drug and device payments (2025) · (573) 874-7800
Dr. Roger Good, M.D.
Columbia, MO · $54 in drug and device payments (2025) · (573) 499-9995
Dr. Steven Gresswell, M.D.
Columbia, MO · $254 in drug and device payments (2025) · (573) 882-8643
Dr. Steven Westgate, M.D.
Columbia, MO · No drug or device payments recorded (2025) · (573) 882-8644

Common questions

How many Radiation Oncology providers are in Columbia, Missouri?

There are 10 Radiation Oncology providers with active NPI records practicing in Columbia, 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 Columbia Radiation Oncology across Missouri

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.