I went to the US on business - our corporate insurance means there's a $1000 excess that we pay up front.
Went to a hospital for a minor issue. At no point was there any price list shown, at the end I was asked for $390 before been given my prescription. That was the end of it I thought, sickeningly high charge for 2 minutes with a doctor, a 10p tablet, and hours of waiting around. I asked for an itemised bill, but they couldn't give me one.
A few weeks later I get another bill through the post for another $390 (slightly different amount), complete with the entire bill. The whole bill was about $2k. The 10p tablet? $250. In fact they originally gave me a 50mg one for $9, then took it off the bill, then gave me 2x25mg ones for $250. I then had a $1100 "uninsured discount" which brought the total price down to just before $800.
The bulk of the bill was a single line that was fairly incomprehensible but seemed to cover pointless taking my blood pressure 3 times and the 2 minute consultation with a Doctor who barely spoke to me, and renting the chair for a few hours I guess.
edit: see http://imgur.com/ERjjQBil.png
The U.S. is seriously broken.