Daniel Man, M.D., is accustomed to being paid for doing facelifts and other cosmetic procedures. He has honed the skill of plastic surgery throughout his 24 years in practice. But having clients wanting to buy pieces of art was a novel concept. Largely self-taught in painting and sculpture, Dr. Man knew he had entered a new realm of talent when one of his patients paid more for a painting than she had for liposculpture and facial resurfacing.