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Radiation Oncology in Great Falls, Montana

Data updated monthly · Last refresh September 2026

4 Radiation Oncology providers practice in Great Falls. Listings are drawn from federal public records and are not endorsements.

Radiation Oncology providers in Great Falls

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. Berna Demalignon, M.D.

Great Falls, MT · $33 in drug and device payments (2025) · Telehealth · (406) 991-3957

Dr. Carolyn Rutter, MD

Great Falls, MT · $198 in drug and device payments (2025) · Telehealth · (406) 731-8888

Dr. Joseph Clyde, MD

Great Falls, MT · $1,060 in drug and device payments (2025) · Telehealth · (406) 731-8888

Dr. Kelly Underhill, M.D.

Great Falls, MT · $16 in drug and device payments (2025) · (406) 454-2171

Common questions

How many Radiation Oncology providers are in Great Falls, Montana?

There are 4 Radiation Oncology providers with active NPI records practicing in Great Falls, 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 Great Falls Radiation Oncology across Montana

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.