| Provider | Group Practice/Location | Office Phone |
| Ngo, Lawrence MD | NEMHS - Poplar Community Hospital | (406) 768-6100 |
| Ngo, Lawrence MD | NEMHS - Trinity Hospital | (406) 653-6500 |
| Nguyen, Marie MD | Diversified Radiology | (303) 914-8800 |
| Nguyen, James OD | Bauer & Clausen PC | (406) 656-8886 |
| Nguyen, Vincent MD | NEMHS - Poplar Community Hospital | (406) 768-6100 |
| Nguyen, Vincent MD | NEMHS - Trinity Hospital | (406) 653-6500 |
| Nguyen, Briana DPT | Mountain Land Rehabilitation, LLC - Heights | (406) 206-6888 |
| Nguyen, Trinh DO | Beartooth Billings Clinic | (406) 446-2345 |
| Nguyen, Trinh DO | Beartooth Billings Clinic - Clinic | (406) 446-2345 |
| Nguyen, Trinh DO | Big Horn Hospital | (406) 665-2310 |
| Nguyen, Trinh DO | Midway Clinic DBA Three Rivers Health | (307) 568-3311 |
| Nguyen, Trinh DO | Pioneer Medical Center | (406) 932-4603 |
| Nguyen, Trinh DO | Roundup Memorial Healthcare | (406) 323-2301 |
| Nguyen, Trinh DO | Roundup Memorial Healthcare Clinic | (406) 323-3337 |
| Nguyen, Trinh DO | South Big Horn County Hospital District DBA Three Rivers Health | (307) 568-3311 |
| Nicell, Donald MD | NEMHS - Poplar Community Hospital | (406) 768-6100 |
| Nicell, Donald MD | NEMHS - Trinity Hospital | (406) 653-6500 |
| Nichols, Patricia LCPC | Positive Solutions | (406) 670-3956 |
| Nicola, Marcus FNP | Intermountain Health Heart & Vascular - Cody Clinic | (406) 237-5001 |
| Nicola, Marcus FNP | Intermountain Health Heart & Vascular - Downtown Cardiothoracic & Vascular Surgery | (406) 237-5001 |
| Nicola, Marcus FNP | Cody Clinic - Cardiology Outreach | (406) 237-5001 |
| Nicola, Marcus FNP | Cody Clinic - Vascular Outreach | (406) 238-6820 |
| Niles, DeAnna PA-C | Riverstone Health Clinic | (406) 697-0976 |
| Niles, DeAnna PA-C | RiverStone Health Clinic - Bridger | (406) 662-3740 |
| Niles, DeAnna PA-C | RiverStone Health Clinic - Joliet | (406) 962-9062 |