Medicare Part D Enrollment 2024 Deadline. Medicare health and drug plans can. To join a medicare advantage plan (part c), you need both part a and part b.

Enrolling during the fourth month of the iep or any of the three months afterwards means coverage begins the month following the month of enrollment. Medicare calculates the penalty by multiplying 1% of the national base beneficiary premium ($34.70 in 2024) times the number of full, uncovered months you didn’t have.