| Lowrimore, James LAC | Rimrock Foundation | (406) 248-3175 |
| Lowther, Christopher MD | Big Horn Basin Skin Centre & Internal Medicine | (307) 587-7000 |
| Lucas, Martin MD | SVH Frontier Cancer Center | (406) 238-6290 |
| Lucas, Bobby FNP | PURE Infusion Suites of MT LLC - Great Falls | (406) 384-7002 |
| Luem, C. Nick MD | Yellowstone Pathology Institute, Inc. | (406) 238-6360 |
| Luem, C. Nick MD | Yellowstone Pathologists, PC - Bozeman | 406-585-1004 |
| Lutsyk, Olga DO | RiverStone Health Clinic | (406) 247-3350 |
| Lutsyk, Olga DO | SVHC West Grand Family Medicine | (406) 237-5353 |
| Lybrand , Kyle MD | Ortho Montana, PSC | (406) 237-5050 |
| Lybrand , Kyle MD | SVHC Ortho MT Trauma | (406) 237-5050 |
| Lynagh, Robert DO | SVHC Neurosurgery - Billings | (406) 237-5577 |
| Lynagh, Robert DO | SVHC Neurosurgery - Bozeman | (406) 237-5577 |
| Lyson, Cheryl LCPC | SVHC Internal Medicine | (406) 238-6900 |
| Lyson, Cheryl LCPC | SVHC Behavioral Health | (406) 237-3585 |
| MacAdam , Brett MD | Eastern Radiological Associates | (406) 237-5490 |
| Maher, Monica NP | Surgical Associates, PC | (406) 238-6470 |
| Maher, Monica NP | Big Horn Hospital | (406) 665-2310 |
| Maier, Dennis MD | SVHC Wound Healing Center | (406) 237-8270 |
| Maier, Dennis MD | SVH Wound Healing Center | (406) 237-8270 |
| Main , Ronald MD | SVH Montana Heart Institute | (406) 237-5001 |
| Malody, Lisa MD | SVHC Internal Medicine | (406) 238-6900 |
| Malters, Edward MD | SVHC Internal Medicine | (406) 238-6900 |
| Malters, Deborah MD | Montana Psychiatry, PLLC | (406) 839-2985 |
| Mann, Kilby MD | SVHC Fortin Pediatric Specialty Clinic | (406) 237-5300 |
| Mark , David MD | BVHC - Sweet Medical Center - Harlem | (406) 353-4861 |
