State licensing weeds out the cranks. But these AIs could go for FDA approval and direct to consumer. So I don't think doctors are the limiting reagent here in your example. If these AIs are good, they will reduce demand for dermatologists as some enterprising doctor will offer it as a service that scales.

While I think doctors are paid handsomely and there are critical shortages, I don't think regulatory licensing requirements per se limit access to new and cheaper care.