
| Provider | Group Practice/Location | Office Phone |
| Greer, Christopher LAC | Rimrock Foundation | (406) 248-3175 |
| Gregory, Joe DO | SJMG Rocky Mountain Clinic | (406) 496-3633 |
| Grenier, Gregory DO | Ortho Montana PSC | (406) 237-5050 |
| Griffin, Steven DO | Holy Rosary Healthcare | (406) 233-2600 |
| Griffin, Steven DO | Holy Rosary Healthcare Clinic | (406) 233-2500 |
| Grinsell, Matthew MD | SVHC Fortin Pediatric Specialty Clinic | (406) 237-5300 |
| Groff, Kelsie APRN | Broadwater Clinic - Walk-in | (406) 237-8550 |
| Groff, Kelsie APRN | Heights Clinic - Walk-in | (406) 237-8400 |
| Groff, Kelsie APRN | Intermountain Health West End Clinic - Walk In | (406) 901-2580 |
| Groff, Kelsie APRN | Laurel Clinic - Walk-in | (406) 237-3160 |
| Groff, Kelsie APRN | N. 27th Walk-in Clinic | (406) 237-5110 |
| Groover, Michael DO | Ortho Montana PSC | (406) 237-5050 |
| Grosulak, Lynn LCPC | Lynn M. Grosulak PLLC | (406) 855-9446 |
| Grubbs, Mckenzie LCPC | Youtherapy, PLLC | 406-201-9720 |
| Grundhauser (Castro), Carla LCPC | Big Sky Behavioral Health Inc | (406) 672-8411 |
| Grundhauser (Castro), Carla LCPC | Yellowstone Boys & Girls Ranch | (406) 656-3112 |
| Grunhuvd, Fredericka MSW, LCSW | Fredericka Grunhuvd LCSW PLLC | (406) 241-2511 |
| Grzybowski, Richard DO | Diversified Radiology | (303) 914-8800 |
| Grzybowski, Richard DO | SJMG Radiology | (406) 723-2500 |
| Gubbels, Sarah LCSW | Glendive Counseling Center | (406) 377-6217 |
| Gustin, Aaron DO | St. Vincent Neurosurgery | (406) 237-5577 |
| Gustin, Aaron DO | St. Vincent Regional Hospital Neurology Service | (406) 237-3850 |
| Gutierrez, Jennifer MD | NEMHS - Poplar Community Hospital | (406) 768-6100 |
| Gutierrez, Jennifer MD | NEMHS - Trinity Hospital | (406) 653-6500 |
| Guy, Douglas MD | Intermountain Health Heart & Vascular - Downtown Cardiothoracic & Vascular Surgery | (406) 237-5001 |