A couple of points that contribute a large amount to the cost of health care. The overhead for doctors has risen a lot recently (relitive term)

The med mal insurance for doctors is extremely high, I've heard this is especially true for OBGYN's, and some specialitys

College cost have gone up a LOT even since I first went compared to when I went back 7 years later. The amount of student loan dept that most people are in finishing an grad or especially a doctorate progam is extremely high.

I"m not saying that these or the only reasons, but if I was a gambling man I would bet they are the largest factors.