| Provider | Group Practice/Location | Office Phone |
| Cahill, Carissa FNP | NEMHS - Faith Lutheran Home | (406) 653-6421 |
| Cahill, Carissa FNP | NEMHS - Poplar Community Hospital | (406) 768-6100 |
| Cahill, Carissa FNP | NEMHS - Trinity Hospital | (406) 653-6500 |
| Cahill, Carissa FNP | NEMHS - Riverside Family Clinic | (406) 768-5171 |
| Cahill, Anne MD | Intermountain Health Heart & Vascular - Downtown Cardiac & Vascular Surgery | (406) 238-6820 |
| Cai, David MD | Ear, Nose & Throat Associates | (406) 238-6161 |
| Call, Kevin MD | St. Vincent Regional Hospital Neurology Service | (406) 237-3850 |
| Call, Kevin MD | Intermountain Health St. Vincent Regional Hospital | (406) 238-7800 |
| Call, Kevin MD | St. Vincent Regional Hospital - Adult Critical Care | (406) 237-7200 |
| Callaway, Edward MD | NEMHS - Poplar Community Hospital | (406) 768-6100 |
| Callaway, Edward MD | NEMHS - Trinity Hospital | (406) 653-6500 |
| Cameron, James MD | SVHC Neonatal Intensive Care | (406) 237-7076 |
| Campbell, Abraham DO | St. Vincent Regional Hospital - Emergency & Trauma Center | (406) 237-4116 |
| Campbell, Andrew PA | St. Vincent Regional Hospital - Adult Critical Care | (406) 237-7200 |
| Campbell, Andrew PA | Cogent Healthcare of MT, PC dba Sound Physicians of MT | (406) 657-7000 |
| Campbell, TyaJean MD | Intermountain Health St. James Hospital | 406-723-2500 |
| Campbell, TyaJean MD | St. Vincent Hospitalists | (406) 237-3850 |
| Campbell, TyaJean MD | St. Vincent Regional Hospital - Adult Critical Care | (406) 237-7200 |
| Campbell, TyaJean MD | Intermountain Health Holy Rosary Hospital | (406) 233-2600 |
| Campbell, TyaJean MD | SVH Hospitalists | (406) 237-3850 |
| Campbell, TyaJean MD | Cogent Healthcare of MT dba Sound Physicians | (406) 657-7000 |
| Cancel, Quinton MD | ||
| Cancro, Christopher MD | West Grand Clinic - Family Medicine | (406) 237-5353 |
| Cancro, Christopher MD | SVH Hospitalists | (406) 237-3850 |
| Cancro, Christopher MD | Cogent Healthcare of MT dba Sound Physicians | (406) 657-7000 |