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Radiation Oncology in Appleton, Wisconsin

Data updated monthly · Last refresh September 2026

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

Radiation Oncology providers in Appleton

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. Carol Grabowski, MD

Appleton, WI · No drug or device payments recorded (2025) · (920) 749-1171

Dr. Douglas Calvin, M.D.

Appleton, WI · $209 in drug and device payments (2025) · (920) 749-1171

Dr. Michael Ray, MD PHD

Appleton, WI · No drug or device payments recorded (2025) · (920) 738-6340

Dr. Nathan Munson, M.D.

Appleton, WI · No drug or device payments recorded (2025) · (920) 738-6340

Dr. Sara Beltran Ponce, MD

Appleton, WI · No drug or device payments recorded (2025) · (920) 831-8900

Common questions

How many Radiation Oncology providers are in Appleton, Wisconsin?

There are 5 Radiation Oncology providers with active NPI records practicing in Appleton, 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 Appleton Radiation Oncology across Wisconsin

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.