Dr. James M. Spencer, MD, MS, is a board-certified Mohs surgeon and Clinical Professor of Dermatology at Mount Sinai School of Medicine. A distinguished graduate of Stanford University and Columbia University, where he completed his dermatology residency, Dr. Spencer brings over 30 years of expertise in dermatologic and skin cancer surgery, specializing in Mohs micrographic surgery for complex skin cancers. His career includes leadership roles at prestigious institutions and significant contributions to research in skin cancer prevention and treatment. He is widely published in dermatology and has served on multiple editorial boards, highlighting his dedication to advancing dermatologic care and education.