- PO Box 163 Hershey, Pennsylvania 17033-0163 1-800-864-2349, mailbox #3388 HOME NEWSLETTER EVENTS CONTACT US LINKS Email - info@hersheyhearts.org A support group for families of children with congenital heart disease Formed in 1996 in association with the Milton S. Hershey Medical Center, Hershey Hearts is a support group for parents, siblings, and ...www.hersheyhearts.org