• 2021 Donut Hole Discount:
  Part D enrollees will receive a 75% Donut Hole discount on the total cost of their brand-name drugs purchased while in the Donut Hole. The discount includes, a 70% discount paid by the brand-name drug manufacturer and a 5% discount paid by your Medicare Part D plan. The 70% paid by the drug manufacturer combined with the 25% you pay, count toward your TrOOP or Donut Hole exit point.
  For example: If you reach the Donut Hole and purchase a brand-name medication with a retail cost of $100, you will pay $25 for the medication, and receive $95 credit toward meeting your 2021 total out-of-pocket spending limit.
  
  Medicare Part D beneficiaries who reach the Donut Hole will also pay a maximum of 25% coinsurance on generic drugs purchased while in the Coverage Gap (receiving a 75% discount).
  For example: If you reach the 2021 Donut Hole, and your generic medication has a retail cost of $100, you will pay $25. The $25 that you spend will count toward your TrOOP or Donut Hole exit point.
  
  
• Minimum Cost-sharing in the Catastrophic Coverage Portion of the Benefit**:
  beneficiaries will be charged $3.70 for those generic or preferred multisource drugs with a retail price under $74 and 5% for those with a retail price greater than $74. For brand-name drugs, beneficiaries would pay $9.20 for those drugs with a retail price under $184 and 5% for those with a retail price over $184.
  
  
• Maximum Copayments below the Out-of-Pocket Threshold for certain Low Income Full Subsidy Eligible Enrollees:
  will increase to $3.70 for generic or preferred drug that is a multi-source drug and $9.20 for all other drugs in 2021.

Medicare Part D standard benefit trends 2006 to 2021

Click here to see a comparison of plan parameters for all years since 2006