Dr. Cathlyn Marie Cortez is a board-certified dermatologist of the Philippine Dermatological Society(PDS) . She specializes in diseases of the skin, hair, and nails. She ranked 1st in the PDS diplomate examination for 2024. She completed her dermatology residency training at the Jose R. Reyes Memorial Medical Center, the national specialty center for dermatology, where she served as chief resident during her senior year.