This article in the New Yorker, which has been cited repeatedly by President Obama, talks about why McAllen, Texas has the highest health care costs in the country. The conclusion is that doctors there have caught an entreprenuerial spirit that leads them to choose a manner of care that maximizes their profit. The system of incentives in this country makes it possible, so he takes the position that things will inevitably get worse. But, he also mentions a few places, such as Salt Lake, that use what he calls an accountable care model where doctors, insurers, and hospitals work together as a community to focus on quality of care rather than on volume.
This one from the Washington post makes the case for why national policy makers should look to some of Utah's reforms as an example.
Another from the Heritage foundation describes Utah's reforms in a little more detail, and states that other states should learn from how Utah has been able to improve access and implement new technology with minimal regulation.