Bisma A. Sayed, Kenneth Finegold, Kaavya Ashok, Sarah Schutz, Nancy De Lew, Steven Sheingold, and Benjamin D. Sommers

Effective January 1, 2023, the Inflation Reduction Act (IRA) eliminated enrollee cost-sharing for recommended vaccines covered under Medicare Part D. In 2021, 3.4 million people received vaccines under Part D, and annual out-of-pocket costs were $234 million. This translates to nearly $70 in out-of-pocket spending per Medicare enrollee receiving a Part D vaccine that they would not have had to pay if the IRA had been in effect in 2021.

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