Looking around the world, it seems to me that most developed countries (if not all) suffer from the same problem of lack of doctors. Some mask it by pulling doctors from poorer countries (including poorer developed countries), but it seems like there's a lack of doctors everywhere. If that's the case then Congress can't really be the only limiting factor.

Why are there no developed countries that have far too many doctors? The only countries that I can think of that export doctors are Cuba and third world countries.