Medicare Part D Premiums and Cost Sharing in 2027 The average premium for Part D stand-alone drug plans will increase substantially if current enrollees do not switch to lower-premium plans. Authors: Juliette Cubanski, Meredith Freed, and Nancy Ochieng Published: Oct 30, 2026

https://www.kff.org/medicare/medicare-part-d-premiums-and-cost-sharing-in-2027/ Medicare Part D is a voluntary outpatient prescription drug benefit for people with Medicare provided through private plans, including stand-alone prescription drug plans and Medicare Advantage plans that offer drug coverage. This analysis provides an overview of Medicare Part D premiums and cost sharing in 2027 and key trends over time.