Prescription drug utilization varies dramatically among individuals. To make sure Medicare payments to Prescription Drug Plans (PDPs) reflect the health status of enrollees, the Centers for Medicare & Medicaid Services (CMS) is developing a risk adjustment methodology. Risk adjustment is a statistical process used to identify and adjust for variation in patient costs that stem from differences in key risk factors – each a demographic or diagnostic characteristic of the patient.

The CMS methodology, which is mandated by the Medicare Modernization Act (MMA), will use various inputs ? age, sex, disability status, and diagnoses ? to create a reasonable estimate of a PDP?s cost liability. Risk adjustment will result in more fair and accurate drug plan payments and help ensure access for the most vulnerable beneficiaries.

For PowerPoint slides on CMS? planned approach, click here.