Samaritan Medical Center. 830 Washington Street. Watertown, NY 13601. All Lab and Imaging Services provided at this location. P. 315-785-4095. Hours: Monday – Friday • 7:00 AM – 5:00 PM. Saturday and Sunday • 8:00 AM – 12:00 PM. Due to COVID-19, office hours may have changed and some locations are temporarily closed..