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Radiation Oncology in Washington, Washington DC

Data updated monthly · Last refresh September 2026

26 Radiation Oncology providers practice in Washington, and 46% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Radiation Oncology providers in Washington

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. Adedamola Omogbehin, MD
Washington, DC · $46 in drug and device payments (2025) · (202) 877-3925
Dr. Aditya Halthore, MD
Washington, DC · No drug or device payments recorded (2025) · Telehealth · (202) 816-6254
Dr. Anatoly Dritschilo, M.D.
Washington, DC · No drug or device payments recorded (2025) · (202) 444-3320
Dr. Brandi Page, M.D.
Washington, DC · No drug or device payments recorded (2025) · Telehealth · (202) 537-4787
Dr. Brian Collins
Washington, DC · $357 in drug and device payments (2025) · Telehealth · (202) 444-3320
Dr. Carmen Kut, MD PHD
Washington, DC · No drug or device payments recorded (2025) · Telehealth · (202) 537-4788
Dr. Christina Tsien, MD
Washington, DC · $5,189 in drug and device payments (2025) · (314) 747-7236
Dr. Ebrahim Ashayeri, MD
Washington, DC · No drug or device payments recorded (2025) · (202) 865-1421
Dr. Jean Wright, MD
Washington, DC · No drug or device payments recorded (2025) · (202) 537-4788
Dr. Jill Remick, MD
Washington, DC · $421 in drug and device payments (2025) · (202) 715-4000
Dr. Joann Collier-manning
Washington, DC · No drug or device payments recorded (2025) · (202) 745-8314
Dr. Jonathan Lischalk, M.D.
Washington, DC · $25,523 in drug and device payments (2025) · Telehealth · (202) 444-3320
Dr. Keith Unger, MD
Washington, DC · $848 in drug and device payments (2025) · Telehealth · (202) 444-2600
Dr. Martin Ojong-ntui, M.D.
Washington, DC · $346 in drug and device payments (2025) · (202) 715-5120
Dr. Matthew Forsthoefel, M.D.
Washington, DC · $590 in drug and device payments (2025) · (202) 741-3000
Dr. Mihoko Fujita, MD
Washington, DC · No drug or device payments recorded (2025) · (202) 865-1421
Dr. Nam Nguyen, M.D.
Washington, DC · $67 in drug and device payments (2025) · (202) 865-1421
Dr. Nitika Paudel
Washington, DC · No drug or device payments recorded (2025) · Telehealth · (312) 926-2600
Dr. Pamela Randolph Jackson, MD
Washington, DC · $81 in drug and device payments (2025) · (800) 353-0788
Dr. Rachit Kumar, MD
Washington, DC · $17 in drug and device payments (2025) · Telehealth · (202) 537-4787
Dr. Robert White, MD
Washington, DC · No drug or device payments recorded (2025) · (202) 877-3925
Dr. Sana Dastgheyb, MD, PHD
Washington, DC · No drug or device payments recorded (2025) · (202) 745-8000
Dr. Sean Collins
Washington, DC · $102,699 in drug and device payments (2025) · Telehealth · (202) 444-3320
Dr. Sherif Shaaban, MD
Washington, DC · No drug or device payments recorded (2025) · (202) 537-2000
Dr. Sophia Rizvi, MD
Washington, DC · No drug or device payments recorded (2025) · (202) 444-2000
Dr. Victoria Croog, M.D.
Washington, DC · No drug or device payments recorded (2025) · Telehealth · (202) 537-4787

Common questions

How many Radiation Oncology providers are in Washington, Washington DC?

There are 26 Radiation Oncology providers with active NPI records practicing in Washington, according to federal NPPES data refreshed monthly.

How many Radiation Oncology providers in Washington received drug or device company payments?

12 of 26 (46%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

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 Washington Radiation Oncology across Washington DC

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.