Your Part D costs (including premiums, deductibles, and coinsurances or copayments) can change every year. Each fall, your plan should send you an Annual Notice of Change (ANOC) to inform you of any changes for the coming year. Your plan cannot change your deductible or premium during the plan year, but the amount you pay for your drugs can change during the year based on which coverage period you are in. The chart below provides general Medicare drug costs for 2025.

All Part D plans must offer the Medicare Prescription Payment Plan. This payment plan allows you to spread your out-of-pocket drug costs throughout the year. This plan can help even out costs across the year if you meet the out-of-pocket cap or if you have high drug costs during part of the year. If you do not expect to meet the out-of-pocket cap and you have relatively stable drug costs through the year without the program, you may have higher costs at the end of the year if you opt in.  

To opt in to the payment plan, contact your plan. You can opt in at any time, and there is no cost to participate in the program. Participating in the payment plan program does not change the total amount that you pay for prescription drugs. It does not decrease or increase your out-of-pocket costs– it only changes when you have to pay.