| Provider | Group Practice/Location | Office Phone |
| Lyson, Cheryl LCPC | Downtown Clinic - Internal Medicine | (406) 238-6900 |
| L\'Heureux, Dena MD | SVHC Adult Critical Care | (406) 237-7200 |
| M, Megan Petersen | West End Clinic - Gynecologic Oncology - Butte | 406-901-2440 |
| M, Anthony Belmont Iii | Beartooth Billings Clinic | (406) 446-2345 |
| M, Anthony Belmont Iii | Beartooth Billings Clinic - Clinic | (406) 446-2345 |
| M, Joseph Hibbert | Yellowstone Pathologists PC - Billings | (406) 238-6360 |
| M, Joseph Hibbert | Yellowstone Pathology Institute, Inc. | (406) 238-6360 |
| M, Amy Fishburn | St. Vincent Regional Hospital - Adult Critical Care | (406) 237-7200 |
| M, Jonathan Baugh | Pure Infusion of Montana LLC - Billings | 406-702-1327 |
| M, Jonathan Baugh | Pure Infusion of Montana LLC - Great Falls | 406-304-7002 |
| M, Jonathan Baugh | Pure Infusion of Montana LLC - Helena | 406-206-6015 |
| Ma, Chan MD | Downtown Clinic - Nephrology | (406) 237-5770 |
| Maagard, Dixon OD | Yellowstone Eye Care | (406) 656-7605 |
| Maagard, Dixon OD | Yellowstone Eye Care - Red Lodge | (406) 656-7605 |
| MacAdam, Brett MD | Eastern Radiological Associates | (406) 237-5490 |
| Macartney, Aran NP | SJMG Rocky Mountain Clinic | (406) 496-3633 |
| Macdonald, Andrea APRN | Integrative Mental Health Services PLLC | (406) 702-1466 |
| MacDonald, Ashley DNP, FNP | Ear, Nose & Throat Associates | (406) 238-6161 |
| Macdonald, Ian DO | Intermountain Health St. James Hospital | 406-723-2500 |
| Maher, Monica FNP | St. Vincent Regional Hospital - Emergency & Trauma Center | (406) 237-4116 |
| Mahler, Michael CRNA | Butte Clinic - Anesthesia | (406) 723-2472 |
| Mahoney, Chloe DPT | West Billings Physical Therapy | (406) 655-9060 |
| Maier, Dennis MD | Downtown Clinic - Wound Healing Center | (406) 237-8270 |
| Maier, Dennis MD | St. Vincent Wound Care & Infectioud Disease PB | (406) 237-8270 |
| Maier, Stacy LCSW | Yellowstone Boys & Girls Ranch | (406) 656-3112 |