Welcome to Warthan Dermatology Mohs Skin Cancer Surgery Center, the practice of Surgeon, Molly M. Warthan, M.D. Dr. Warthan is board certified in Dermatology and Fellowship trained in Mohs surgery. Our office is conveniently located in the heart of Fort Worth, Texas ready to provide comprehensive skin cancer treatment and dermatology services to all ages in a friendly, welcoming and caring environment.