I think there is a bit of confusion about how the health care system works in the US.
I don't like it any more than anyone else, but the reality is that the most likely thing to happen in the US is an explosion in the number of nurse practitioners and PA's.
Why? Because insurance companies will reimburse for them. Usually due to a myriad of reasons like standard of care, the insurance company having someone to lay hands on in the event things go off the rails, and a galaxy of other issues too byzantine to go into in a single post.
Until we wrest some control away from the payer, we'll see more and more NP's and PA's in the medium term. Fewer MD's. And AI's will struggle to gain acceptance as an arbiter.
In the far future, assuming the payers remain all powerful, you can see things going to a really natural looking place for the US, but a place that is dystopian in the extreme if you take a step out of the system and look at the big picture. Think of it this way, What happens in a far future where payers decide which AI's they reimburse for in the manner they currently decide which providers they reimburse for?