Atul Gawande who is a Professor of Surgery at Harvard as well as a contributing writer for the New Yorker goes to McAllen, Texas, which is one of the most expensive places in the US (and thus the world) for healthcare:
In recent years, we doctors have markedly increased the number of operations we do, for instance. In 2006, doctors performed at least sixty million surgical procedures, one for every five Americans. No other country does anything like as many operations on its citizens. Are we better off for it? No one knows for sure, but it seems highly unlikely. After all, some hundred thousand people die each year from complications of surgery—far more than die in car crashes.
Obviously the US has a different health care system to us, but the core problem – that they’re spending a lot more money for little gain, and even arguably worse outcomes – seems very relevant.