| Luem, C. Nick MD | Yellowstone Pathology Institute, Inc. | (406) 238-6360 | 
| Luem, C. Nick MD | Yellowstone Pathologists, PC - Bozeman | 406-585-1004 | 
| Luers, Maggie AUD | Rehder Hearing Clinic | (406) 245-6893 | 
| 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 | SVH Wound Healing Center | (406) 237-8270 | 
| Maier, Dennis MD | SVHC 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, Deborah MD | Montana Psychiatry, PLLC | (406) 839-2985 | 
| Malters, Edward MD | SVHC Internal Medicine | (406) 238-6900 | 
| Mann, Kilby MD | SVHC Fortin Pediatric Specialty Clinic | (406) 237-5300 | 
| Mark , David MD | BVHC - Sweet Medical Center - Harlem | (406) 353-4861 | 
| Mark , David MD | Big Horn Hospital | (406) 665-2310 | 
| Mark , David MD | Bighorn Valley Health Center - St Labre | (406) 784-6721 | 
| Mark , David MD | Bighorn Valley Health Center - Hardin | (406) 665-4103 |