
| Provider | Group Practice/Location | Office Phone |
| Lemelin, Charise MSW, LCSW | Yellowstone Boys & Girls Ranch - Clinic | (406) 655-2100 |
| Lengle, Steven MD | NEMHS - Poplar Community Hospital | (406) 768-6100 |
| Lengle, Steven MD | NEMHS - Trinity Hospital | (406) 653-6500 |
| Leone, Richard MD PHD | ||
| Leslie (was Norcross), Dawn LAC | Riverstone Health Clinic | (406) 697-0976 |
| Lester, James MD | NEMHS - Poplar Community Hospital | (406) 768-6100 |
| Lester, James MD | NEMHS - Trinity Hospital | (406) 653-6500 |
| Letzing, Michael MD | Diversified Radiology | (303) 914-8800 |
| Levy, Mark MD | St. Vincent Regional Hospital Neurosciences | (406) 237-5577 |
| Lew, DeKrisha MD | Bozeman Midtown Clinic - Family Medicine | (406) 556-5888 |
| 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 |
| Lewis-Smith, Kailey OTD | Ortho Montana PSC | (406) 237-5050 |
| Licht, Amber FNP-C | Planned Parenthood of Montana - Great Falls | (406) 454-3431 |
| Lien, Julie PT | Ortho Montana PSC | (406) 237-5050 |
| Lim, Annie DO | Diversified Radiology | (303) 914-8800 |
| Lim, Annie DO | SJMG Radiology | (406) 723-2500 |
| Lim, Annie DO | Butte Clinic- Radiology | (406) 723-2500 |
| Lin, Andrew MD | Intermountain Health Heart & Vascular - Downtown Clinic Cardiology | (406)237-5001 |
| Lindenbaum, Jeffry MD | Bair Memorial Clinic | (406) 632-4343 |
| Lindenbaum, Jeffry MD | Beartooth Billings Clinic | (406) 446-2345 |
| Lindenbaum, Jeffry MD | Beartooth Billings Clinic - Clinic | (406) 446-2345 |
| Lindenbaum, Jeffry MD | Big Horn Hospital | (406) 665-2310 |