The bottom line:
[N]o matter how good you got at slashing administrative costs, they will never be a panacea to the problems of the system. Rick Kronick, a political scientist at the University of California at San Diego, has done some of the best work on administrative costs, and he summed the situation up quite well. "The main question," he said, "is why are health care costs going up at 2.4 percent a year faster than GDP? And most of the answers to that question have nothing to do with administrative costs . . . ."
A friend also directed me to this article discussing health care costs and treatment options. Definitely worth a read.