OPPS - A payment system of reimbursement for hospital outpatient services It has become a must for the health care service providers to undergo annual price reviews. The main reasons for these types of changes are the increasing competition and the transformation into consumer driven healthcare environment. The changes in legislation are also one of the reasons why hospitals are opting to analyze hospital data for benchmarking analyses. Keywords: Saurabh Pandey, Hospital data, MEDPAR, OPPS