Would a non-dermatologist be able to diagnose skin cancer?

Yes: Family practice doctors and general surgeons also do biopsies and send them to a pathologist.

Sometimes: It depends on whether the doctor is willing to perform a skin biopsy. While a skin lesion may look like cancer, the only way to accurately diagnose it is to perform a skin biopsy.

Biopsy: Skin cancer is determined by the results of a biopsy. A dermatologist is the most likely physician to do this test; however, a surgeon or other qualified physician could potentially do a skin biopsy and come up with the diagnosis.