| Christofferson, Brittany LAC | RiverStone Health Clinic | (406) 247-3350 |
| Clark, Dallas MD | Beartooth Billings Clinic | (406) 446-2345 |
| Clark, Danika DO | SJMG Rocky Mountain Clinic | (406) 496-3633 |
| Clausen, Robyn OD | Bauer & Clausen, PC | (406) 656-8886 |
| 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 |
| Close , Amber FNP | BVHC - Sweet Medical Center - Harlem | (406) 353-4861 |
| Close , Amber FNP | Bighorn Valley Health Center - St Labre | (406) 784-6721 |
| Close , Amber FNP | Bighorn Valley Health Center - Hardin | (406) 665-4103 |
| Close , Amber FNP | Bighorn Valley Health Center - Ashland | (406) 784-2346 |
| Close , Amber FNP | Bighorn Valley Health Center - Miles City | (406) 874-8700 |
| Close , Amber FNP | BVHC - Sweet Medical Center - Chinook | (406) 357-2294 |
| Close , Amber FNP | BVHC Central MT Community Health Center - Lewistown | (406) 535-6545 |
| 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 |
| Colson, Emily MD | RiverStone Health Clinic | (406) 247-3350 |
| Colson, Emily MD | RiverStone Health Clinic - Bridger | (406) 662-3740 |
| Colson, Emily MD | RiverStone Health Clinic - Joliet | (406) 962-9062 |
| Colson, Emily MD | RiverStone Health Clinic - Worden | (406) 967-2255 |
| Comes, Annette MD | SVHC Lewistown Primary Care | (406) 535-7070 |
