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Radiation Oncology in Montana

26 licensed radiation oncologists practicing in Montana across 9 cities.

Data from NPI Registry · last checked

Radiation oncologists by city in Montana

Billings 6 Missoula 5 Great Falls 4 Kalispell 3 Bozeman 2 Butte 2 Sidney 2 Walla Walla 1 Big Sky 1

Directory

Showing 26 of 26 providers, alphabetical by last name. Contact details from the NPI Registry — verify currency with the provider's office.

Christopher Barnett Baker, MD

931 Highland Blvd Ste 3130

Bozeman, MT 59715 · (406) 414-5070

License: MED-PHYS-LIC-127559 (MT)

NPI 1609223932 →

Richard Nmn Belgrad, MD

9200 Trooper Trl

Bozeman, MT 59715 · (406) 522-1520

License: 9719 (MT)

NPI 1023061488 →

Joseph Wright Clyde, MD

1117 29th St S

Great Falls, MT 59405 · (406) 731-8888

License: 118264 (MT)

NPI 1710478698 →

Berna Roig Demalignon, MD

202 2nd Ave S Ste 103

Great Falls, MT 59405 · (406) 991-3957

License: 57381 (MT)

NPI 1770560948 →

Jeffrey S. Eshleman, MD

343 Sunnyview Ln

Kalispell, MT 59901 · (406) 752-1790

License: 49277 (MT)

NPI 1770561433 →

Ian Salzman Gallaher, MD

401 W Poplar St

Walla Walla, WA 99362 · (509) 897-5700

License: MD61349342 (WA)

NPI 1801152160 →

Christopher C Goulet, MD

801 N 29th St

Billings, MT 59101 · (406) 238-2500

License: 11062 (MT)

NPI 1437137155 →

Christopher Dave Hellekson, MD

900 N Orange St Ste 202

Missoula, MT 59802 · (406) 327-3362

License: MED-PHYS-LIC-10457 (MT)

NPI 1205369287 →

Eugene Frank Hughes, MD

5 Green Ln

Butte, MT 59701 · (406) 494-2636

License: 4945 (MT)

NPI 1952519761 →

Ralf K Kiehl, MD

214 14th Ave Sw

Sidney, MT 59270 · (406) 488-2504

License: 200385 (NY)

NPI 1760483788 →

Frank R Lamm, MD

1315 Golden Valley Cir

Billings, MT 59102 · (406) 238-6290

License: 6850 (MT)

NPI 1417949033 →

Justin M. Linam, MD

343 Sunnyview Ln

Kalispell, MT 59901 · (406) 752-1790

License: 54066 (MT)

NPI 1750727152 →

Katherine Lee Markette, MD

500 W Broadway St, Radiation Oncology/st Patrick Hospital

Missoula, MT 59802 · (406) 329-5655

License: 5186 (MT)

NPI 1407806987 →

Margaret Murga Menendez, MD

500 W Broadway St

Missoula, MT 59802 · (406) 329-5655

License: 8242 (MT)

NPI 1447208079 →

Trent Donald Mihalick, MD

1315 Golden Valley Cir

Billings, MT 59102 · (406) 238-6290

License: 7435 (MT)

NPI 1942306063 →

Marc Bryan Nash, MD

400 S Clark St

Butte, MT 59701 · (406) 723-2621

License: 20621 (MT)

NPI 1205162922 →

Robert David Pfeffer, MD

216 14th Ave Sw

Sidney, MT 59270 · (406) 488-2100

License: MD00026712 (WA)

NPI 1679563639 →

Michelle Ann Proper, MD

2827 Fort Missoula Rd

Missoula, MT 59804 · (406) 327-3911

License: 27289 (MT)

NPI 1003088634 →

Carolyn Rutter, MD

1117 29th St S

Great Falls, MT 59405 · (406) 731-8888

License: 89142 (MT)

NPI 1912016767 →

John M. Schallenkamp, MD

801 N 29th St

Billings, MT 59101 · (406) 238-2500

License: DR.0075716 (CO)

NPI 1265455018 →

Jeffrey A Stephenson, MD

500 W Broadway St

Missoula, MT 59802 · (406) 329-5655

License: 10665 (MT)

NPI 1053312900 →

Gordon D. Stillie, DO

343 Sunnyview Ln

Kalispell, MT 59901 · (406) 752-1790

License: 10467 (MT)

NPI 1316993082 →

Elizabeth M Tapen, MD

2091 Little Coyote Rd Ste 161029

Big Sky, MT 59716 · (845) 797-8700

License: 2323381 (NY)

NPI 1134108525 →

Rebecca Susan Tarlton, MD

1315 Golden Valley Cir

Billings, MT 59102 · (406) 238-6290

License: 48212 (MT)

NPI 1083655393 →

Breanne Elizabeth Terakedis, MD

801 N 29th St

Billings, MT 59101 · (406) 238-2500

License: 33403 (MT)

NPI 1609010578 →

Kelly Jane Underhill, MD

3000 15th Ave S

Great Falls, MT 59405 · (406) 454-2171

License: 11840 (MT)

NPI 1447275870 →

Practice info disclaimer: Provider addresses and phone numbers come from the NPI Registry, which providers update at their discretion. Always call ahead to confirm the provider is currently accepting patients and is at the listed address.

Medical disclaimer: This listing is not a quality ranking and does not constitute medical advice or endorsement. Choose a provider in consultation with your primary care physician or care team.

Source: NPI Registry (taxonomy: Radiation Oncology) · Last checked: 2026-04-20