24-Hour Emergency Care for the Mission Community

STHS ER Mission

South Texas Health System’s standalone ER Mission is open 24 hours per day, 365 days per year. The Mission ER is staffed with the same medical personnel and equipped with the same diagnostic technology available in South Texas Health System’s hospital-based emergency rooms.


STHS ER Mission
900 E Expressway 83
Mission, TX 78572
956-271-1200