where can i find a doctor? any doctor?

There is a doctor right as you start the game lol. I forgot his name, but the guy who looked over you as you got shot in the head hes a doctor and i use him alot. Hes in Goodsprings in the white house on the hill..

There are other doctor's like in freeside and a few other places too

Use the Fallout Wiki or search the topics here. Asking every single question as a new topic clutters things.

As far as your question, perhaps the very first freakin' character you meet in the game might help, what's his name?

Oh yeah, DOC Mitchell.

Obviously Doc Mitchell if you didn't kill him and their is also a doctor over in Novac.

You can't be serious. The first person you wake up and talk with is a doctor. Are you really playing Fallout NV?