Penn State Health Lab Services 2607 Keiser Blvd 1st Floor Wyomissing, PA 19610 610-743-3139 Fax: 610-678-5704 Sunday: ClosedMonday - Thursday: 6:00 am-6:00 pmFriday: 6:00 am-5:00 pmSaturday: 6:00 am-12:00 pm Walk-in services. No appointment needed.