What makes it hard to discuss is everyone at every level is gouging for various reasons.
Like, for example, doctors are going to be paid more than foreign counter parts, but they also end up needing very expensive schooling. (Similar thing happens to dentists).
Go into the hospital, and you end up paying 10x the amount for any medication (Tylenol being a good example) because either the hospital has an agreement with a medical supplier for exclusive supplies or they are trying to make up for ER treatments.
Then there's simply the added layer of bloat on top of everything. Health insurance ends up hiring a large staff of people to try and reject all claims while hospitals hire patient advocates to appeal the denials for the patients. All that ends up being paid for somehow (usually a large chunk is from the patient's insurance principle).
And, much like funerals, slap on "medical" on any piece of equipment and you get to raise the price by 10x. A $10 stethoscope ends up costing $100 from a medical supplier. Or one I've personally seen, a "medical" pocket protector made from $1 in fabric costing $50.
The reason non-us healthcare ends up being cheaper is because the governments are running most everything rather than having 3 or 4 private businesses duking it out over cost. It eliminates a huge amount of redundancy in the system when a government builds the hospitals, pays the doctors directly, and is the only one negotiating with medical equipment providers.