Medical City Las Colinas is a full-service, acute care hospital licensed for 100 beds. Serving Las Colinas, Irving, and surrounding communities since 1997, Medical City Las Colinas is a Level III Trauma Center and offers a wide range of leading-edge technology and services. About us Get Directions Call Us: (972) 969-2000.Find a Doctor‧Pay/View Bill Online‧Medical Records‧Leadership‧Specialties‧Patients And Visitors.