90% of medicine is stuff like people going to the doctor with the flu to get a sick note to stay home from work and instructions to rest and drink fluids. I don't think you need an MD for that.
It seems to me the US healthcare system sits in this weird gap where it's not funded by private individuals, but it's also not publicly funded (excluding medicare/medicade/VA/tricare etc)
So it doesn't benefit from efficiencies of a single-payer system like the UK has, and it doesn't have to obey proper market forces either, since you have a bunch of for-profit entities in the middle, but the costs are obfuscated from the consumer unless you're unlucky enough not to have employer-funded health insurance.
So until you fix those core issues, I don't see how technological advancements are going to have much of an effect either positive or negative.
It's an orthogonal issue.
It goes the other way as well. My aunt is an RN and she loves to tell the story about the time that a doctor was in such a rush one time she had to call his attention to the fact that his patient was dead.