Please follow http://www.cms.gov/Research-Statistics-Data-and-Systems/Monitoring-Programs/CERT/Downloads/MedicareFeeforService2012ImproperPaymentsReport.pdf.

Please follow http://www.cms.gov/Research-Statistics-Data-and-Systems/Monitoring-Programs/CERT/Downloads/MedicareFeeforService2012ImproperPaymentsReport.pdf.