UPMC Primary Care Fredericksburg - Jonestown. 100 E. Queen St. Jonestown, PA 17038. Phone: 717-865-2162. Fax: 717-865-7680. UPMC in central Pa. is excited to welcome UPMC Primary Care Fredericksburg - Jonestown, formerly Jonestown Health Center, to our network of primary care offices. UPMC Primary Care Fredericksburg - Jonestown offers a ....