Identification of Surgeon Outliers to Improve Cost Efficiency: A Novel Use of the Centers for Medicare and Medicaid Quality Payment Program

Abstract

BackgroundBundled payment programs for total joint arthroplasty (TJA) have become popular among both private and public payers. Because these programs provide surgeons with financial incentives to decrease costs through reconciliation payments, there is an advantage to identifying and emulating cost-efficient surgeons. The objective of this study was to utilize the Centers for Medicare and Medicaid Services (CMS) Quality Payment Program (QPP) in combination with institutional data to identify cost-efficient surgeons within our region and, subsequently, identify cost-saving practice patterns. MethodsData was obtained from the CMS QPP for total knee (TKA) and total hip (THA) surgeons within a large metropolitan area from January 2019 to December 2021. A simple linear regression determined the relationship between surgical volume and cost-efficiency. Internal practice financial data determined whether patients of identified surgeons differed with respect to x-ray visits, physical therapy visits, out-of-pocket payments to the practice, and whether surgery was done in hospital or surgical center settings. ResultsThere were four TKA and three THA surgeons who were cost-efficiency outliers within our area. Outliers and non-outlier surgeons had patients who had similar BMI, ASA, and age-adjusted CCI scores. Patients of these surgeons had fewer x-ray visits for both TKA and THA (1.06 versus 1.11, P < 0.001; 0.94 versus 1.15, P < 0.001) and lower out-of-pocket costs ($86.10 versus $135.46, P < 0.001; $116.10 versus $177.40, P < 0.001). If all surgeons performing > 30 CMS cases annually within our practice achieved similar cost-efficiency, the savings to CMS would be $17.2 million for TKA alone ($75,802,705 versus $93,028,477). ConclusionThe CMS QPP can be used to identify surgeons who perform cost-efficient surgeries. Practice patterns that result in cost savings can be emulated to decrease the cost curve, resulting in reconciliation payments to surgeons and institutions and cost savings to CMS.