The 59th Medical Wing (59 MDW) is a wing of the United States Air Force assigned to Air Education and Training Command, stationed at Lackland Air Force Base, Texas. The 59 MDW is the Air Force's premier medical unit. It operates Wilford Hall Ambulatory Surgical Center, which is now part of the San Antonio Military Healthcare Systems (SAMHS). The wing provides global medical readiness capability and comprehensive peacetime healthcare benefits through education, training and research. Previously referred to as SAMMC-South, this designation was dropped under agreement with the Army, and its name changed to Wilford Hall Ambulatory Surgery Center.