- Longview Regional Medical Center
- Longview Rehabilitation Hospital
- Loring Hospital
- Los Alamos Medical Center
- Los Angeles Community Hospital
- Los Angeles County Central Jail Hospital
- Los Angeles General Medical Center
- Los Angeles Jewish Health Grancell Village
- Los Angeles Medical Center
- Los Robles Regional Medical Center
- Los Robles Rehabilitation Hospital
- Lost Rivers Medical Center
- Louisiana Behavioral Health
- Louisiana Extended Care Hospital of Lafayette
- Louisiana Extended Care Hospital of Natchitoches
- Lourdes Counseling Center
- Lourdes Health
- Lovelace Medical Center
- Lovelace Regional Hospital
- Lovelace UNM Rehabilitation Hospital
- Lovelace Westside Hospital
- Lovelace Womens Hospital
- Lowell General Hospital - Main Campus
- Lowell General Hospital - Saints Campus
- Lower Bucks Hospital
- Lower Keys Medical Center
- Lower Umpqua Hospital
- Loyola Medicine Childrens Hospital
- Loyola University Medical Center
- LTACH CareOne at Hackensack University Medical Center - Pascack Valley