Medicare has a vocabulary problem. Parts A through D, Medigap, Medicare Advantage, premiums, deductibles, enrollment windows — the words all matter, and mixing them up is the most common way people end up confused about their own coverage. This site is a plain-English reference for that vocabulary and the machinery behind it.
We don't tell you which plan to pick, and we don't sell anything. What you'll find here is reference material: what each part of Medicare covers, how the enrollment windows work, how the cost structure is put together, and where to get free, one-on-one help from counselors whose job is to be unbiased.
Start with the Medicare Parts at a Glance table on this page. It lays out the five building blocks — Parts A, B, C, D, and Medigap — side by side: what each one covers, how you get it, and how it interacts with the others. Most Medicare confusion dissolves once that structure is clear.
Everything here is drawn from official federal resources and established nonprofit references, linked on every page so you can verify what you read. For decisions about your own coverage, the last word belongs to Medicare.gov and to a licensed counselor or agent — our job is to make sure you walk into that conversation understanding the terms.