Open Enrollment 2024 Medicare Part D. Join or change medicare part d prescription drug plans. You can only join, switch, or drop a medicare advantage plan (part c) or medicare drug plan (part d) at certain times, called enrollment periods.

This annual release provides information to help part d plan sponsors finalize their offerings and individuals understand overall part d premium trends ahead of medicare open enrollment. Learn about the types of costs you’ll pay in a medicare drug plan.