- Lamb Healthcare Center
- Laredo Medical Center
- Laredo Rehabilitation Hospital
- Laredo Specialty Hospital
- Larry D Johnson Heart & Vascular Institute at Memorial Hermann-Texas Medical Center
- Las Palmas Del Sol Rehabilitation Hospital East
- Las Palmas Medical Center
- Laurel Ridge Treatment Center
- Lavaca Medical Center
- Legent North Houston Surgical Hospital
- Legent Orthopedic and Spine Hospital
- Legent Orthopedic Hospital Carrollton
- Legent Surgical Hospital Plano
- Liberty Dayton Regional Medical Center
- LifeCare Hospital of Plano
- Lillian M Hudspeth Memorial Hospital
- Limestone Medical Center
- Lone Star Behavioral Health
- Longview Regional Medical Center
- Longview Rehabilitation Hospital
- Lubbock Heart & Surgical Hospital
- Lyndon B Johnson Hospital
- Lynn County Hospital
- Martin County Hospital
- Matagorda Regional Medical Center
- Mayhill Hospital
- McCamey Hospital
- Medical Arts Hospital
- Medical Behavioral Hospital of Clear Lake
- Medical Center Hospital