| Denning, Penny PA-C | SCL Health Medical Group - Lewistown | (406) 535-7070 |
| DePasquale, Susan APRN | Yellowstone Boys & Girls Ranch | (406) 656-3112 |
| DePopas, Eric MD | Diversified Radiology | (303) 914-8800 |
| Depuydt, Kellie FNP | Broadwater Clinic - Walk-in | (406) 237-8550 |
| Depuydt, Kellie FNP | Laurel Clinic - Family Medicine | (406) 628-6311 |
| Depuydt, Kellie FNP | Lockwood Clinic - Family Medicine | (406) 237-5444 |
| Depuydt, Kellie FNP | Red Lodge Clinic - Family Medicine | (406) 446-3800 |
| Dernbach, Daniel MD | Downtown Clinic - Wound Healing Center | (406) 237-8270 |
| Dernbach, Daniel MD | Intermountain Health Heart & Vascular - Downtown Cardiac & Vascular Surgery | (406) 238-6820 |
| Dernbach, Daniel MD | St. Vincent Wound Care & Infectioud Disease PB | (406) 237-8270 |
| Dernbach, Timothy MD | Downtown Clinic - Wound Healing Center | (406) 237-8270 |
| Dernbach, Timothy MD | Intermountain Health Heart & Vascular - Downtown Cardiac & Vascular Surgery | (406) 238-6820 |
| Dernbach, Timothy MD | St. Vincent Wound Care & Infectioud Disease PB | (406) 237-8270 |
| Desmarais, Thomas MD | Intermountain Health Heart & Vascular - Downtown Cardiac & Vascular Surgery | (406) 238-6820 |
| Desmarais, Thomas MD | Intermountain Health Heart & Vascular- Lewistown Clinic | (406) 238-6820 |
| Desmarais, Thomas MD | Intermountain Health Heart & Vascular - Gallatin Thoracic & Vascular Surgery Outreach | (406) 613-7999 |
| Devlin, Siri LCPC | BVHC DBA One Health - Ashland | (406) 784-2346 |
| Devlin, Siri LCPC | BVHC DBA One Health - Chinook | (406) 357-2294 |
| Devlin, Siri LCPC | BVHC DBA One Health - Dawson | 406-377-9410 |
| Devlin, Siri LCPC | BVHC DBA One Health - Glendive | (406) 815-5831 |
| Devlin, Siri LCPC | BVHC DBA One Health - Hardin | (406) 665-4103 |
| Devlin, Siri LCPC | BVHC DBA One Health - Hardin Campus | (406) 665-4103 |
| Devlin, Siri LCPC | BVHC DBA One Health - Hardin School | 406-665-4103 |
| Devlin, Siri LCPC | BVHC DBA One Health - Harlem Sweet | (406) 353-4861 |
| Devlin, Siri LCPC | BVHC DBA One Health - Lewistown | (406) 535-6545 |
