Does a dermatologist need to be a member of the american college of moh's surgery to do this type of work on the face? what is the best certification?

Legally No, however-: The American College of Mohs surgery is comprised of 1400 physicians who were fellowship trained in Mohs Surgery and Reconstructive Surgery. See mohscollege.org or skincancermohssurgery.org to learn why to choose a Fellowship trained Mohs surgeon to remove your skin cancer.

No: Make sure that the physician has approved training and board certification in dermatology and MOHS surgery.