24 Radiation Oncology providers practice in Montana, including 12 (50%) offering telehealth. The largest concentration is in Billings. 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.
Choose a city to see providers there.
| Radiation Oncology in Billings | 6 providers |
| Radiation Oncology in Great Falls | 4 providers |
| Radiation Oncology in Missoula | 4 providers |
| Radiation Oncology in Kalispell | 3 providers |
| Radiation Oncology in Sidney | 2 providers |
| Radiation Oncology in Butte | 2 providers |
| Radiation Oncology in Bozeman | 2 providers |
| Radiation Oncology in Big Sky | 1 providers |
From CMS Medicare enrollment records covering 15 of the 24 providers listed here (63%). Providers who do not bill Medicare are not included in these figures.
| Group (as registered with Medicare) | Radiation Oncologists | All clinicians in group | Main city |
| Billings Clinic | 2 | 814 | Billings |
| Kalispell Regional Medical Center Inc. | 2 | 422 | Eureka |
| Benefis Hospitals Inc. | 2 | 390 | Great Falls |
| Providence Health and Services Mt | 2 | 358 | Missoula |
| Scl Health Medical Group - Billings LLC | 2 | 291 | Billings |
| Hospital | City | Ownership | CMS star rating | Radiation Oncologists affiliated |
| Intermountain Health St Vincent Regional Hospital | Billings | Nonprofit | 4 of 5 | 4 |
| St. Patrick Hospital | Missoula | Nonprofit | 5 of 5 | 3 |
| Bitterroot Health - Daly Hospital | Hamilton | Nonprofit | 4 of 5 | 3 |
| Great Falls Clinic Hospital | Great Falls | For-profit | 2 of 5 | 3 |
| Benefis Hospitals Inc. | Great Falls | Nonprofit | 2 of 5 | 3 |
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.
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.
There are 24 Radiation Oncology providers with active NPI records practicing in Montana, according to federal NPPES data refreshed monthly.
Yes. 12 of the 24 Radiation Oncology providers in Montana (about 50%) report offering telehealth services in CMS data.
Billings (6), Great Falls (4), Missoula (4) have the highest concentration of Radiation Oncology providers in Montana.
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.
Among 15 Radiation Oncologists in Montana enrolled in Medicare, 7% bill through a solo or small practice with fewer than 10 clinicians, 27% through a mid-size group of 10 to 99, and 67% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
According to CMS facility affiliation records, the Montana hospitals where the most Radiation Oncologists hold privileges are Intermountain Health St Vincent Regional Hospital in Billings; St. Patrick Hospital in Missoula; Bitterroot Health - Daly Hospital in Hamilton.
Radiation Oncology in all 50 states Search all 24 in the directory Ask Zach for help choosing