| Provider | Group Practice/Location | Office Phone |
| Luellen, Allison PA-C | Intermountain Montana Virtual Care Clinic | (406) 237-5110 |
| Lundby, Brandy LCPC | ||
| Lundby, Brandy LCPC | Turnwell Mental Health of Montana PC, DBA Montana Psychiatry PLLC - Grand | (406) 839-2985 |
| Lundby, Brandy LCPC | Turnwell Mental Health of Montana, PC DBA Montana Psychiatry PLLC - 24th Street | (406) 839-2985 |
| Lundby, Brandy LCPC | Turnwell Mental Health of Montana, PC DBA Montana Psychiatry PLLC - Bozeman | (406) 839-2985 |
| Lundgren, Chelsea CRNP | Children\'s Clinic of Billings - Outpatient | (406) 281-8700 |
| Lundgren, Chelsea CRNP | Children\'s Clinic of Billings - Westend | (406) 281-8700 |
| Lundin, Ashley LCPC | Yellowstone Boys & Girls Ranch | (406) 656-3112 |
| Lybrand, Kyle MD | Ortho Montana PSC | (406) 237-5050 |
| Lybrand, Kyle MD | SVHC Ortho MT - Trauma | (406) 237-5050 |
| Lyders, Eric MD | Diversified Radiology | (303) 914-8800 |
| Lyders, Eric MD | SJMG Radiology | (406) 723-2500 |
| Lynn, Matthew MD | Diversified Radiology | (303) 914-8800 |
| Lynn, Matthew MD | SJMG Radiology | (406) 723-2500 |
| Lyson, Cheryl LCPC | Downtown Clinic - Behavioral Health Associates | (406) 237-3585 |
| Lyson, Cheryl LCPC | Downtown Clinic - Internal Medicine | (406) 238-6900 |
| L\'Heureux, Dena MD | SVHC Adult Critical Care | (406) 237-7200 |
| 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 |
| Macdonald, Andrea APRN | Integrative Mental Health Services PLLC | (406) 702-1466 |
| Maher, Monica FNP | St. Vincent Regional Hospital - Emergency & Trauma Center | (406) 237-4116 |
| Mahoney, Chloe DPT | West Billings Physical Therapy | (406) 655-9060 |
| Maier, Stacy LCSW | Yellowstone Boys & Girls Ranch | (406) 656-3112 |