Adirondack Medical Center - Saranac Lake. 2233 State Route 86 P.O. Box 471 Saranac Lake, NY 12983 518-891-4141. Adirondack Medical Center - Saranac Lake serves the residents of the Saranac Lake region. Overlooking scenic Lake Colby, the Saranac Lake campus houses: The main hospital building, Adirondack Medical Center.