"this wasn’t just error, but it was intent” by the doctors

Hospital Chain Inquiry Cited Unnecessary Cardiac Work

“The allegations related to unnecessary procedures being performed in the cath lab are substantiated,” according to a confidential memo written by a company ethics officer, Stephen Johnson, and reviewed by The New York Times.
But the nurse’s complaint was far from the only evidence that unnecessary — even dangerous — procedures were taking place at some HCA hospitals, driving up costs and increasing profits.
HCA, the largest for-profit hospital chain in the United States with 163 facilities, had uncovered evidence as far back as 2002 and as recently as late 2010 showing that some cardiologists at several of its hospitals in Florida were unable to justify many of the procedures they were performing. Those hospitals included the Cedars Medical Center in Miami, which the company no longer owns, and the Regional Medical Center Bayonet Point. In some cases, the doctors made misleading statements in medical records that made it appear the procedures were necessary, according to internal reports.
http://www.nytimes.com/2012/08/07/business/hospital-chain-internal-reports-found-dubious-cardiac-work.html?_r=2