Wylie ISD Educational Service Center K, 1, 2 ,3, 4 972.429.3000 951 S. Ballard Avenue Wylie, TX 75098 Superintendent: David Vinson, Ph.D. Email: communications@wylieisd.net Hours: Monday - Thursday 8:00 a.m. - 4:30 p.m. Friday 8:00 a.m. - 4:00 p.m.