St. Luke's Hospital-Allentown Campus 1736 W. Hamilton Street Allentown, PA 18104 610-628-8300. Telephone & Patient Portal. Our office phones are answered 24 hours a day. Calls are answered by our staff from 8:30 am - 5:00 pm, Monday through Thursday and from 8:30 am - 3:00 pm on Friday. We have an answering service for the hours the ....