Depends on which doctor you are going to. We have some of the world’s best doctors but they might be in hospitals or doing a concierge service. You get what you pay for.
No, with the American health system, you do get what you pay for (i.e. more money ⇒ access to better medicine); but you don’t necessarily pay (the right amount) for what you get (i.e. !(worse medicine ⇒ costs less)).
Which is to say: standard-of-care treatments can cost far too much relative to other countries; but also, if you’re willing to throw millions of dollars at private clinics, you can opt your own way into experimental treatments that don’t exist anywhere else in the world.
But you don't... that's the whole problem with the American Healthcare industry!