The Carl R. Darnall Army Medical Center is a United States Department of Defense medical facility at Fort Hood, Texas. It provides medical care to servicemembers and their families, along with veterans and their dependents, in and around the largest U.S. military installation in the world. Named after inventor of water chlorination Brigadier General Carl Rogers Darnall, MD., the core of the medical center is a state of the art 947,000-square-foot hospital. The facility opened in 2016, and includes a full primary care and emergency medical facility, including a level III trauma center, and specialized care in obstetrics and gynaecology, orthopedics, and behavioral health. The hospital provides treatment to nearly 3,000 patients daily. The medical center is one of the largest in the Military