Consumer Reports has some information on choosing a top hospital that might be helpful in your research:
- http://www.consumerreports.org/cro/news/2014/08/six-tips-for-choosing-the-right-hospital-for-surgery/index.htm
- http://www.consumerreports.org/cro/2013/01/how-to-choose-a-hospital/index.htm

There's also sites like HealthGrades or ZocDoc for physician reviews or even Castle Connolly's Top Doctors. They are all free and reading reviews from others may help.