| Wertman, Brett MD | SVH Montana Heart Institute | (406) 237-5001 |
| Wessell, William LCPC | RiverStone Health Clinic | (406) 247-3350 |
| Wessell, William LCPC | RiverStone Health Clinic - Bridger | (406) 662-3740 |
| Wessell, William LCPC | RiverStone Health Clinic - Joliet | (406) 962-9062 |
| Wessell, William LCPC | RiverStone Health Clinic - Worden | (406) 967-2255 |
| Westmark, Mathew MD | RiverStone Health Clinic | (406) 247-3350 |
| Westmark, Mathew MD | RiverStone Health Clinic - Bridger | (406) 662-3740 |
| Westmark, Mathew MD | RiverStone Health Clinic - Joliet | (406) 962-9062 |
| Westmark, Mathew MD | RiverStone Health Clinic - Worden | (406) 967-2255 |
| Westphal , Ashley FNP | SJMG Emergency Physicians | (406) 723-2585 |
| Wheatland Memorial Healthcare, Hospital (CAH) | Wheatland Memorial Hospital | (406) 632-4351 |
| Whelan, Cheri PA-C | SVHC Heart & Vascular Center | (406) 238-6820 |
| White, Jenelle DPT | SJMG Therapy - Boulder | (406) 225-4201 |
| White, Jenelle DPT | SJMG Therapy - Whitehall | (406) 287-3717 |
| Whitehead, Douglas PA-C | Beartooth Billings Clinic | (406) 446-2345 |
| Wiesner, James PA | SVHC Billings Transitional Care | (406) 237-8282 |
| Wilcox, Michael MD | Surgical Associates, PC | (406) 238-6470 |
| Wilcox , Karen LCPC | RiverStone Health Clinic | (406) 247-3350 |
| Wilcox, Amanda LAC | Rimrock Foundation | (406) 248-3175 |
| Wiley , Amanda CNM | SVHC Midwifery & Womens Clinic - Billings | (406) 238-6010 |
| Wiley , Amanda CNM | SVHC Midwifery & Womens Clinic - Hardin | (406) 665-2800 |
| Williams , Dale DC | Chiropractic First West | (406) 652-6700 |
| Williams , Dale DC | Bull Mountain Chiropractic | (406) 323-3273 |
| Williams , Dale DC | Chiropractic First Laurel | (406) 628-4622 |
| Williams , Jeffery MD | Holy Rosary Healthcare | (406) 233-2600 |
