Should a podiatrist list himself all of a sudden as a "Family Doctor?"?

I’ve known or used to know this foot doctor for over thirty five years. I was browsing google and saw that he is now calling himself a “Family Doctor.” Is that proper or is he just trying to drum up more business? He is not an M.D. or an osteopath and he sure doesn’t need the money. He operates out of his foot clinic, labeled as such with a couple other podiatrists.