Keystone Dermatology & Center for Skin Surgery is a dermatology and skin surgery practice in Altoona, Pennsylvania, serving western and central Pennsylvania. Founded by Gregory John Fulchiero Jr., M.D., M.S., F.A.A.D., the practice offers Mohs surgery and skin cancer treatment, medical dermatology, aesthetic services, cosmetic skin procedures, and laser therapy in a state-of-the-art medical and office-based surgical facility.