Home/Glossary/Donut HoleGlossary · Part DDonut HoleA former coverage gap in Part D. Largely eliminated by the Inflation Reduction Act, which caps out-of-pocket at $2,000 in 2025.Related TermsFormularyDrug TierStep TherapyCatastrophic CoverageLow-Income Subsidy (Extra Help)Creditable CoverageFormulary ExceptionMedication Therapy Management (MTM)← Back to glossary index