Evaluating the impact of Medicare Part D on quality metrics

Subsidized access to medical and pharmacy benefits is not a goal in and of itself; it is a means toward an end (improved health outcomes). Accordingly, the addition of an outpatient prescription drug benefit (Part D) to Medicare in 2006 will be deemed a success if it provides better, more affordable access to outpatient prescription drugs for Medicare beneficiaries and, more importantly, improves drug adherence and health outcomes, together with reducing or at least bending the cost curve by offsetting certain healthcare costs such as hospitalizations and emergency room visits. Priest and colleagues examine these claims and find suboptimal outcomes despite improved access.