Reminder: All Medicare drug plans offer popular vaccines at a $0 cost and all formulary insulin products for a $35 or less 30-day copay.

A number of provision included in the “Inflation Reduction Act” (IRA) will continue to positively impact 2025 Medicare Part D prescription drug plan coverage including:

No cost ($0) for many popular vaccines

Medicare Part D prescription drug plan members will have no cost ($0) sharing for certain common vaccines recommended by the Advisory Committee on Immunization Practices (ACIP), such as the Shingles vaccine and Pneumonia vaccine. The purchase of a vaccine in the plan's Initial Deductible - if your plan has a deductible - will not impact the deductible balance.
Cost for covered insulin will be $35 or less for a 30-day supply

Insulin products included on a Medicare Part D plan formulary will have a $35 (or less) monthly (30-day) copay and will not be subject to the plan’s initial deductible (if any) - and will not impact the deductible balance. The monthly cost of insulin will remain consistent throughout the Medicare drug plan's Initial Coverage Phase and a person will have no additional costs ($0) for any formulary drugs once reaching the Catastrophic Coverage phase. What a person spends (or other people spend on their behalf) will count toward the annual maximum out-of-pocket spending limit (RxMOOP).

In addition, insulin furnished through Medicare Part B durable medical equipment (DME), will also have a monthly copay of no more than $35.

No-cost vaccines and low-cost insulin products will be offered by both stand-alone Medicare Part D plans (PDPs) and Medicare Advantage plans that include drug coverage (MAPDs).
Where can I learn more? Look into your Medicare drug plan's printed documents and you will read something such as:

"Important Message About What You Pay for Vaccines:
Our plan covers most Part D vaccines at no cost to you, even if you have not paid your deductible (if your plan has a deductible)."

"Important Message About What You Pay for Insulin:
You won’t pay more than $35 for up to a one-month supply, $70 for up to a two-month supply or $105 for up to a three-month supply of each covered insulin product regardless of the cost-sharing tier, even if you have not paid your deductible (if your plan has a deductible)."

"The [Medicare plan's drug] deductible doesn’t apply to covered insulin products and most adult Part D vaccines including shingles, tetanus, and travel vaccines."