Medicare 2025 Part D. Learn about the types of costs you’ll pay in a medicare drug plan. Starting january 1, 2025, if you sign up for part a and/or part b because of an exceptional situation, you’ll have 2 months to join a medicare advantage plan (with or without drug coverage) or a medicare drug plan (part d).

One of the costs retirees pay — medicare part b premiums — may be increasing in 2025, driven by a new alzheimer’s treatment on the market. New medicare part d changes are going into effect in 2025 and 2025;