Life coming from non-life all by itself is not part of the theory of evolution. The theory of evolution is a theory explaining how the first life form developed into the innumerable species that inhabit the earth today. Where that first life form came from is not part of the theory; indeed, by definition, it cannot be, because the theory of evolution depends upon imperfect reproduction, and so has no meaning before life reproduced itself. Darwin himself, in the last paragraph of The Origin of Species, posited that the first life form was created by God.
I see. . .so the theory of evolution just jumps over to existence of a life form.
So are you saying that, for a doctor to treat you, he/she must believe that a single celled organism evolved into a multi-cellular organism with different DNA?
That still seems to be very strange criteria. I don't see a connection with believing that and the knowledge/skills required for a doctor. If you feel otherwise, please explain what impact you see.