Banner Desert Medical Center, formerly Desert Samaritan Medical Center, or “Desert Sam," is a 615-bed non-profit, short-term acute care hospital located in Mesa, Arizona adjacent to the border with Tempe, providing tertiary care and healthcare services to the East Valley portion of the greater Phoenix area. It is designated by the Arizona Department of Health Services as a Level I trauma center. It is part of the locally based, regional Banner Health system of non-profit hospitals and clinics.