Radiation Oncologists in Colorado
Data updated monthly · Last refresh October 2026
111 Radiation Oncology providers practice in Colorado, including 46 (41%) offering telehealth. The largest concentration is in Aurora. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
111providers
46telehealth
Auroratop city
Radiation Oncology by city in Colorado
Choose a city to see providers there.
Where Radiation Oncologists in Colorado practice
From CMS Medicare enrollment records covering 78 of the 111 providers listed here (70%). Providers who do not bill Medicare are not included in these figures.
3%solo or small practice (under 10 clinicians)
17%mid-size group (10 to 99)
81%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Radiation Oncologists | All clinicians in group | Main city |
| University Physicians Inc.orporated | 19 | 3,189 | Aurora |
| Colorado Permanente Medical Group PC | 12 | 1,325 | Denver |
| Catholic Health Initiatives Colorado | 10 | 1,230 | Lakewood |
| Intermountain Medical Group Denver LLC | 9 | 571 | Firestone |
| Rocky Mountain Cancer Centers LLP | 9 | 131 | Boulder |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Radiation Oncologists affiliated |
| University of Colorado Hospital Authority | Aurora | Government | 5 of 5 | 14 |
| Uchealth Highlands Ranch Hospital | Highlands Ranch | Nonprofit | 5 of 5 | 12 |
| HCA-Healthone Dba Swedish Medical Center | Englewood | For-profit | 4 of 5 | 10 |
| Medical Center of the Rockies | Loveland | Nonprofit | 5 of 5 | 8 |
| Saint Joseph Hospital | Denver | Nonprofit | 5 of 5 | 8 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Radiation Oncology providers in Colorado
Listed by city, largest first. 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. Arthur Liu, MDAurora, CO · No drug or device payments recorded (2025) · Telehealth ·
(720) 848-0000 Dr. Blair Murphy, M.D.Aurora, CO · No drug or device payments recorded (2025) · Telehealth ·
(720) 718-5160 Dr. Brian Kavanagh, MDAurora, CO · $893 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Christine Fisher, M.D.Aurora, CO · No drug or device payments recorded (2025) · Telehealth ·
(720) 848-0000 Dr. David Binder, MDAurora, CO · No drug or device payments recorded (2025) · Telehealth ·
(720) 848-0100 Dr. David Nagel, M.D.Aurora, CO · No drug or device payments recorded (2025) ·
(720) 848-0000 Dr. David Raben, MDAurora, CO · No drug or device payments recorded (2025) ·
(720) 848-0000 Dr. Dennis Carter, MDAurora, CO · $223 in drug and device payments (2025) · Telehealth ·
(303) 418-7600 Dr. Karyn Goodman, M.D.Aurora, CO · $2,301 in drug and device payments (2025) · Telehealth ·
(720) 848-0909 Dr. Katherine Tzou, MDAurora, CO · $253 in drug and device payments (2025) · Telehealth ·
(720) 848-4000 Dr. Mackenzie Daly, MDAurora, CO · $28 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Meera Patel, M.D.Aurora, CO · $4,197 in drug and device payments (2025) · Telehealth ·
(303) 418-7600 Dr. Michelle Ludwig, M.D.Aurora, CO · $203 in drug and device payments (2025) · Telehealth ·
(720) 848-0100 Dr. Rachel Rabinovitch, MDAurora, CO · No drug or device payments recorded (2025) · Telehealth ·
(720) 848-0000 Dr. Ryan Lanning, M.D., PHD.Aurora, CO · No drug or device payments recorded (2025) · Telehealth ·
(720) 848-0100 Dr. Sameer Nath, M.D.Aurora, CO · No drug or device payments recorded (2025) · Telehealth ·
(720) 848-0000 Dr. Sarah Milgrom, M.D.Aurora, CO · No drug or device payments recorded (2025) · Telehealth ·
(720) 848-0000 Dr. Tracey Schefter, MDAurora, CO · No drug or device payments recorded (2025) ·
(720) 848-0000 Dr. Tyler Robin, MDAurora, CO · No drug or device payments recorded (2025) · Telehealth ·
(720) 848-0100 Dr. William Daniel, MDAurora, CO · No drug or device payments recorded (2025) ·
(303) 418-7600 Dr. Andrew Antell, MDBoulder, CO · No drug or device payments recorded (2025) ·
(303) 385-2000 Dr. Dario PasalicBoulder, CO · $89 in drug and device payments (2025) · Telehealth ·
(303) 385-2000 Dr. Patrick Richard, M.D./M.P.H.Boulder, CO · $108 in drug and device payments (2025) · Telehealth ·
(303) 285-2000 Dr. David Marcus, M.D.Carbondale, CO · $307 in drug and device payments (2025) · Telehealth ·
(214) 415-7432 Dr. Alan Monroe, M.D.Colorado Springs, CO · $244 in drug and device payments (2025) · Telehealth ·
(719) 776-5281 Dr. Andrew Tanner, MDColorado Springs, CO · $31 in drug and device payments (2025) ·
(719) 776-5281 Dr. Barry Gardner, M.D.Colorado Springs, CO · $328 in drug and device payments (2025) ·
(719) 247-5500 Dr. Daniel Tandberg, M.D.Colorado Springs, CO · $116 in drug and device payments (2025) · Telehealth ·
(719) 776-5281 Dr. Jane Ridings, M.D.Colorado Springs, CO · $28 in drug and device payments (2025) ·
(719) 365-6800 Dr. Jeffrey Olsen, MDColorado Springs, CO · $166 in drug and device payments (2025) · Telehealth ·
(719) 365-6800 Dr. John Schiller, M.D.Colorado Springs, CO · No drug or device payments recorded (2025) ·
(719) 776-5281 Dr. Kaleigh Doke, MDColorado Springs, CO · $20 in drug and device payments (2025) ·
(719) 365-6800 Dr. Mark Hazuka, M.D.Colorado Springs, CO · $16 in drug and device payments (2025) ·
(719) 776-5281 Dr. Mihir Naik, D.O.Colorado Springs, CO · $47 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Paul Mitchell, MDColorado Springs, CO · No drug or device payments recorded (2025) ·
(719) 577-2555 Dr. Richard Ross, MDColorado Springs, CO · $255 in drug and device payments (2025) ·
(719) 365-3800 Dr. Timothy Waxweiler, M.D.Colorado Springs, CO · No drug or device payments recorded (2025) · Telehealth ·
(719) 365-6800 Dr. Andrzej Wojcieszynski, MD Dr. Christopher Deig, M.D.Denver, CO · $1,202 in drug and device payments (2025) · Telehealth ·
(812) 449-1243 Dr. Elaine Weng, MDDenver, 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, MDDenver, CO · No drug or device payments recorded (2025) ·
(303) 338-4545 Dr. Kathryn Howell, MDDenver, CO · No drug or device payments recorded (2025) ·
(303) 839-6530 Dr. Narine Wandrey, MDDenver, CO · $85 in drug and device payments (2025) · Telehealth ·
(720) 754-6000 Common questions
How many Radiation Oncology providers are in Colorado?There are 111 Radiation Oncology providers with active NPI records practicing in Colorado, according to federal NPPES data refreshed monthly.
Do Radiation Oncology providers in Colorado offer telehealth?Yes. 46 of the 111 Radiation Oncology providers in Colorado (about 41%) report offering telehealth services in CMS data.
Which cities in Colorado have the most Radiation Oncology providers?Aurora (22), Denver (14), Colorado Springs (13) have the highest concentration of Radiation Oncology providers in Colorado.
How many Radiation Oncology providers in Colorado received drug or device company payments?68 of 111 Radiation Oncology providers in Colorado (61%) 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 counts and profiles 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.
Do most Radiation Oncologists in Colorado work in independent practices or large health systems?Among 78 Radiation Oncologists in Colorado enrolled in Medicare, 3% bill through a solo or small practice with fewer than 10 clinicians, 17% through a mid-size group of 10 to 99, and 81% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Radiation Oncologists in Colorado work at?According to CMS facility affiliation records, the Colorado hospitals where the most Radiation Oncologists hold privileges are University of Colorado Hospital Authority in Aurora; Uchealth Highlands Ranch Hospital in Highlands Ranch; HCA-Healthone Dba Swedish Medical Center in Englewood.
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