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Radiation Oncology in Williamsport, Pennsylvania

Data updated monthly · Last refresh September 2026

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

Radiation Oncology providers in Williamsport

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. Brett Lewis, M.D.
Williamsport, PA · $3,670 in drug and device payments (2025) · Telehealth · (570) 326-8203
Dr. David Cousins, MD
Williamsport, PA · $690 in drug and device payments (2025) · (570) 326-8203
Dr. Francis Powers, MD
Williamsport, PA · No drug or device payments recorded (2025) · (570) 326-8470
Dr. Kenneth Glaser, MD
Williamsport, PA · No drug or device payments recorded (2025) · (570) 326-8470
Dr. Saul Arber, M.D.
Williamsport, PA · $26 in drug and device payments (2025) · (570) 326-8203
Dr. Whoon Jong Kil, M.D.
Williamsport, PA · $768 in drug and device payments (2025) · (570) 326-8203

Common questions

How many Radiation Oncology providers are in Williamsport, Pennsylvania?

There are 6 Radiation Oncology providers with active NPI records practicing in Williamsport, 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 Williamsport Radiation Oncology across Pennsylvania

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.