- United General District 304
- United Health Group
- United Healthcare
- Unity Health
- University Health Care System
- University of California Helen Diller Family Comprehensive Cancer Center
- University of California-Los Angeles
- University of California-San Francisco Medical Center
- University of California-Santa Barbara
- University of Chicago Medical Center
- University of Kansas Medical Center
- University of Leeds’ Academic Unit of Palliative Care
- University of Maryland
- University of Maryland Charles Regional Medical Center
- University of Maryland School of Medicine
- University of Massachusetts-Lowell
- University of Michigan
- University of North Carolina
- University of Pennsylvania
- University of Pittsburg Medical Center
