Medicare drug coverage, the $2,100 cap and penalties, with worked numbers. Independent educational site. Not affiliated with or endorsed by the U.S. government, the federal Medicare program, or any insurance company. Figures are 2026 amounts published by CMS unless noted; check Medicare.gov for your situation.
- The $2,100 Part D cap in 2026: how it works and who benefits
How the 2026 Medicare Part D out-of-pocket cap of $2,100 works, the $615 deductible, what counts toward the cap, and what it means for expensive drugs.
- The Part D late enrollment penalty: 1% a month that never goes away
How the Part D penalty is calculated from the national base premium, what creditable coverage means, and how to avoid or appeal the penalty.
- The Medicare Prescription Payment Plan: spreading drug costs over the year
How the Part D payment plan turns large pharmacy bills into monthly instalments, who it helps, how to opt in, and the catches.