| Christian, Jacob DO | SJMG OB/GYN | (406) 496-3627 |
| Christianson, David MD | SVH Frontier Cancer Center | (406) 238-6290 |
| Clark, Danika DO | SJMG Rocky Mountain Clinic | (406) 496-3633 |
| Clark, Dallas MD | Beartooth Billings Clinic | (406) 446-2345 |
| Clement, Phillip MD | Holy Rosary Healthcare | (406) 233-2600 |
| Clements, Scott MD | SVHC Fortin Pediatric Specialty Clinic | (406) 237-5300 |
| Close, Libby PA-C | Ortho Montana, PSC | (406) 237-5050 |
| Cobb, Patrick MD | SVH Frontier Cancer Center | (406) 238-6290 |
| Cole, John MD | Ohana Providers, PLLC | (406) 272-4631 |
| Coleman, Shawn PA | SVHC Occupational Health | (406) 237-8855 |
| Collett, Gordon MD | The Children's Clinic of Billings - Outpatient | (406) 281-8700 |
| Collett, Gordon MD | The Children's Clinic of Billings, PC | (406) 281-8700 |
| Collins, Linda LCSW | Yellowstone Boys & Girls Ranch | (406) 655-2100 |
| Comes, Annette MD | SVHC Lewistown Primary Care | (406) 535-7070 |
| Comiter, Henry MD | SVH Yellowstone Neurology | (406) 237-3850 |
| Compton, Mary MD | SVHC Gastroenterology | (406) 238-6380 |
| Coombs, Janet MD | Holy Rosary Healthcare Clinic | (406) 233-2500 |
| Coombs, Janet MD | Holy Rosary Healthcare | (406) 233-2600 |
| Cortese, Florian MD | SJMG Cardiac Interpretations | |
| Cox, Joeleen DC | Ottun Chiropractic, PC | (406) 259-9383 |
| Cox, Bart MD | SVH Montana Heart Institute | (406) 237-5001 |
| Cozzens, Jessica MD | Planned Parenthood of Montana - Great Falls | (406) 454-3431 |
| Cozzens, Jessica MD | Planned Parenthood of Montana - Billings Heights | (406) 869-5040 |
| Cozzens, Jessica MD | Planned Parenthood of Montana - Billings West | (406) 656-9980 |
| Cozzens, Jessica MD | Planned Parenthood of Montana - Helena | (406) 446-7676 |
