- William J McCord Adolescent Treatment Facility
- William Newton Hospital
- William P Clements Jr University Hospital
- William R Sharpe Jr Hospital
- William S Hall Psychiatric Institute
- Williamson Medical Center
- Williamson Memorial Hospital
- Willingway Hospital
- Willis-Knighton Medical Center
- Willis-Knighton Rehabilitation Institute
- Willis-Knighton South & the Center for Womens Health
- Willow Creek Behavioral Health
- Willow Creek Womens Hospital
- Willow Crest Hospital
- Willow Rock Center
- Willow Springs Center
- Wills Eye Hospital
- Wills Memorial Hospital
- Wilma N Vazquez Medical Center
- Wilmington Hospital
- Wilmington Treatment Center
- Wilson Medical Center
- Wilson Medical Center
- Wilson Memorial Hospital
- Winchester Hospital
- Winchester Medical Center
- Windham Hospital
- Windhaven Psychiatric Hospital
- Windmoor Healthcare of Clearwater
- Windom Area Health