| Provider | Group Practice/Location | Office Phone |
| Smith, Brian DO | St. Vincent Regional Hospital - Adult Critical Care | (406) 237-7200 |
| Smith, Brian DO | St. Vincent Hospitalists | (406) 237-3850 |
| Smith, Brian DO | Cogent Healthcare of MT PC dba Sound Physicians of MT II | (855) 768-6363 |
| Smith III, Donald DC | Meier Chiropractic - Downtown | (406) 651-5433 |
| Smith III, Donald DC | Meier Chiropractic - West | (406) 651-5433 |
| Snyder, Ronald MD | SVPN Intensivists | (406) 237-7200 |
| Soelberg, Neal DPT | Mountain Land Rehabilitation, LLC - Laurel | (406) 633-4620 |
| Solis, Brianna PA-C | Vista Plains Health | (406) 632-4351 |
| Solis, Brianna PA-C | Vista Plains Health Clinic | (406) 632-4343 |
| Solomon, Amy MD | RiverStone Health | (406) 247-3350 |
| Solum, Phil PA | Ortho Montana PSC | (406) 237-5050 |
| Solum, Phil PA | Intermountain Health Holy Rosary Hospital | (406) 233-2600 |
| Solum, Phil PA | Intermountain Health Holy Rosary Hospital - Orthopedics | 406-223-4000 |
| Solum, Phil PA | Ortho Montana PSC - Miles City | 406-237-5050 |
| Soueidi, Elie PA | Beartooth Billings Clinic | (406) 446-2345 |
| Soueidi, Elie PA | Beartooth Billings Clinic - Clinic | (406) 446-2345 |
| Southwick, Nicole PA | ||
| Sowerwine, Sarah MD | BVHC DBA One Health - Greybull | (307) 765-1450 |
| Sowerwine, Sarah MD | BVHC DBA One Health - Lovell | (307) 548-9123 |
| Sowerwine, Sarah MD | BVHC DBA One Health - Powell | (307) 764-4107 |
| Sowerwine, Sarah MD | BVHC DBA One Health - Sheridan | (307) 674-6995 |
| Sowerwine, Sarah MD | BVHC DBA One Health - Whitney Building | (307) 674-6995 |
| Sowerwine, Sarah MD | BVHC DBA One Health - Cody | 307-291-0447 |
| Spencer (Doyle), Jamie LCSW, LAC | Riverstone Health Clinic | (406) 697-0976 |
| Sperry, Linda PT | West Billings Physical Therapy | (406) 655-9060 |