The Texas Tech University Health Sciences Center (TTUHSC) is a public medical school based in Lubbock, Texas, with additional campuses in Abilene, Amarillo, Dallas, and the Permian Basin. TTUHSC serves more than 100 counties in the western portion of Texas. The university is a separate institution from Texas Tech University; both universities are among five universities that are part of the Texas Tech University System. Texas Tech University Health Sciences Center El Paso, founded in 1969 as a branch campus of TTUHSC, became a separate institution in 2013.