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Radiation Oncology in Denver, Colorado

Data updated monthly · Last refresh September 2026

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

Radiation Oncology providers in Denver

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. Andrzej Wojcieszynski, MD
Denver, CO · $323 in drug and device payments (2025) · (303) 338-4545
Dr. Ari Ballonoff, MD
Denver, CO · $33 in drug and device payments (2025) · (303) 338-4545
Dr. Brandon Patton, MD
Denver, CO · $77 in drug and device payments (2025) · (303) 338-4545
Dr. Christopher Deig, M.D.
Denver, CO · $1,202 in drug and device payments (2025) · Telehealth · (812) 449-1243
Dr. Elaine Weng, MD
Denver, CO · No drug or device payments recorded (2025) · (303) 493-7000
Dr. Eugene Chung, M.D.
Denver, CO · $540 in drug and device payments (2025) · Telehealth · (303) 338-4545
Dr. James Jacobs, MD
Denver, CO · No drug or device payments recorded (2025) · (303) 338-4545
Dr. Kathryn Howell, MD
Denver, CO · No drug or device payments recorded (2025) · (303) 839-6530
Dr. Mark Chidel, MD
Denver, CO · $901 in drug and device payments (2025) · (303) 338-4545
Dr. Michelle Klem, M.D.
Denver, CO · $46 in drug and device payments (2025) · (303) 338-4545
Dr. Narine Wandrey, MD
Denver, CO · $85 in drug and device payments (2025) · Telehealth · (720) 754-6000
Dr. Paige Dorn, M.D.
Denver, CO · No drug or device payments recorded (2025) · Telehealth · (303) 338-4545
Dr. Seth Reiner, M.D.
Denver, CO · No drug or device payments recorded (2025) · (303) 778-5714
Dr. Thomas Pugh, MD
Denver, CO · $23 in drug and device payments (2025) · Telehealth · (303) 825-8822

Common questions

How many Radiation Oncology providers are in Denver, Colorado?

There are 14 Radiation Oncology providers with active NPI records practicing in Denver, 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 Denver Radiation Oncology across Colorado

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.