Dr. Feinberg is a board-certified Diplomate of the American Board of Dermatology and a Fellow of the American Academy of Dermatology. He is past president of the North Jersey Dermatological Society and past Chairman of The Cosmetics and Skin Care Committee of the Bergen County Medical Society. His memberships include the International Society of Hair Restoration Surgery, the American Society for Dermatologic Surgery, the International Society of Cosmetic Surgery, American Academy of Cosmetic Surgery and the American Society for Laser Medicine and Surgery.