As of January 1, 2025, the donut hole, along with drug discounts is gone. The following information is for historical purposes only.

How did I know if my prescription was discounted in the donut hole?
If a drug manufacturer doesn’t agree to a discount, its medication won’t be covered under Part D. So, if your drug is in the plan’s formulary, it will be discounted in the Coverage Gap. Contact your drug plan if you have any questions about your medications.