Hospital coverage
This is the side that pays toward inpatient stays, skilled nursing after a hospital admission, and some care delivered at home. Most people have already paid into it while working, so it usually arrives without a monthly bill attached.
Medical coverage
Office visits, lab work, screenings, outpatient procedures and the equipment your doctor orders all sit here. It carries a monthly premium and still leaves a share of each bill with you, which is the gap people plan around.
Medicare Advantage
A private plan can deliver both sides of your coverage in one package, often with drug coverage and a few extras folded in. The tradeoffs live in the doctor network, the referral rules, and the yearly ceiling on what you pay.
Supplement coverage
A supplement sits beside Original Medicare and picks up costs that Medicare leaves with you. These policies are standardized, so the same type buys the same benefits, and what changes between them is the price and the service behind it.
Prescription coverage
Drug coverage runs on an approved list and pricing tiers that every plan sets for itself. Your exact medicines and doses are what decide whether a plan is cheap for you or quietly expensive, so bring the real names.
Enrollment timing
Sign up windows open and close on set dates, and missing the one that belongs to you can stay with you far longer than it should. That is why I sort out your timing before anything about coverage gets decided.