Why some medical professionals charge more than others

"Medicare has emerged as a potent campaign issue, with both Barack Obama and Mitt Romney vowing to tame its spending growth while protecting seniors. But there’s been little talk about some of the arcane factors that drive up costs, such as billing and coding practices, and what to do about them."

"The Center for Public Integrity's 21-month investigation documents, for the first time, how some medical professionals have billed at sharply higher rates than their peers and collected billions of dollars of questionable fees as a result."