Medicare Part D at Ten Years: The 2015 Marketplace and Key Trends, 2006-2015
Since 2006, Medicare beneficiaries have had access through Medicare Part D to prescription drug coverage offered by private plans, either stand-alone prescription drug plans (PDPs) or Medicare Advantage prescription drug plans (MA-PD plans). Now in its tenth year, Part D has evolved due to changes in the private plan marketplace and the laws and regulations that govern the program. This report presents findings from an analysis of the Medicare Part D marketplace in 2015 and changes in features of the drug benefit offered by Part D plans since 2006.