Originally Posted by aProgDirector
In the situation you're suggesting, the actual "visit" would happen over the phone. This seems most akin to "Nighthawks" -- radiologists who work in one state (or even another country) and read films sent to them from elsewhere. They all need state licenses for every state they read films in. So, I'm pretty sure that you'd need a license for every state where you planned to do this.
And while many states have specific licenses for teleradiology (in my state, it costs the same but is much less of a hassle to get than a regular license), I don't know of any that have special licenses for tele-insurance scams. But I could be wrong.