| Lehman, Dustin LCPC | Dustin Lehman LCPC | 406-815-8255 |
| Leinart-Murch, Peggy LCPC | Yellowstone Boys & Girls Ranch | (406) 655-2100 |
| Leintz, Jessica DPT | Laurel Clinic - Physical Therapy | (406) 628-2831 |
| Lemelin, Charise MSW, LCSW | Yellowstone Boys & Girls Ranch | (406) 655-2100 |
| Lemelin, Charise MSW, LCSW | Yellowstone Boys & Girls Ranch - Clinic | (406) 655-2100 |
| Leone, Richard MD PHD | | |
| Leslie (was Norcross), Dawn LAC | Riverstone Health Clinic | (406) 247-3350 |
| Letzing, Michael MD | Diversified Radiology | (303) 914-8800 |
| Levy, Mark MD | St. Vincent Regional Hospital Neurosciences | (406) 237-5577 |
| Lew, DeKrisha MD | Bozeman Clinic - Family Medicine | (406) 556-5888 |
| Lew, DeKrisha MD | Broadwater Clinic - Family Medicine | (406) 237-5200 |
| Lew, DeKrisha MD | Downtown Clinic - Internal Medicine | (406) 238-6900 |
| Lewis, Daniel MD | Holy Rosary Healthcare | (406) 233-2600 |
| Lewis, Daniel MD | SVHC Emergency & Trauma Center | (406) 237-4116 |
| Lewis, John LAC | Mental Health Center - Billings | (406) 252-5658 |
| Lewis, Debra MD | SJMG Emergency Physicians | (406) 723-2585 |
| Lidberg, Meghan LCPC, LAC | BVHC DBA One Health - Ashland | (406) 784-2346 |
| Lidberg, Meghan LCPC, LAC | BVHC DBA One Health - Chinook | (406) 357-2294 |
| Lidberg, Meghan LCPC, LAC | BVHC DBA One Health - Dawson | 406-377-9410 |
| Lidberg, Meghan LCPC, LAC | BVHC DBA One Health - Glendive | (406) 815-5831 |
| Lidberg, Meghan LCPC, LAC | BVHC DBA One Health - Hardin | (406) 665-4103 |
| Lidberg, Meghan LCPC, LAC | BVHC DBA One Health - Hardin Campus | (406) 665-4103 |
| Lidberg, Meghan LCPC, LAC | BVHC DBA One Health - Hardin School | 406-665-4103 |
| Lidberg, Meghan LCPC, LAC | BVHC DBA One Health - Harlem Sweet | (406) 353-4861 |
| Lidberg, Meghan LCPC, LAC | BVHC DBA One Health - Lewistown | (406) 535-6545 |
