- Windsor Laurelwood Center for Behavioral Medicine
- Winkler County Memorial Hospital
- Winnebago Mental Health Institute
- Winner Regional Hospital
- WinnMed
- Winn Parish Medical Center
- Winona Health
- Winship Cancer Institute at Emory Midtown
- Winston Medical Center
- Winter Haven Hospital
- Winter Haven Womens Hospital
- Wiregrass Medical Center
- Wiser Hospital for Women and Infants
- Witham Health Services
- W J Mangold Memorial Hospital
- WK Bossier Health Center
- WK Pierremont Health Center
- Wolfson Childrens Hospital
- Womans Hospital
- Women & Babies Hospital
- Women & Infants Hospital
- Womens Hospital Saint Joseph East
- Wood County Hospital
- Woodland Heights Medical Center
- Woodland Hills Medical Center
- Woodland Memorial Hospital
- Woodland Springs
- Woodlawn Hospital
- Woodridge Hospital
- Wooster Community Hospital