Navigate Medicare with confidence. Our comprehensive guide covers everything you need to know about Medicare Parts A, B, C, and D, plus 2025 costs, enrollment periods, and coverage options.
Americans on Medicare
Part B Premium 2025
Medicare Parts
Medicare is divided into four distinct parts, each covering different aspects of your healthcare needs. Here's what you need to know about each part in 2025.
Hospital Insurance
for most people
Medical Insurance
per month
Prescription Drug
by plan
Medicare Part C (Advantage plans) replace your Original Medicare (Parts A & B), but you must still be enrolled in both A & B to qualify. Part D can be standalone or included in your Advantage plan.
Understanding Medicare enrollment periods is crucial to avoid penalties and ensure you have coverage when you need it. Here are the key dates for 2025.
Your first chance to enroll in Medicare when you turn 65 or become eligible due to disability.
Enrollment period
Coverage begins
If you missed your Initial Enrollment Period, you can enroll during this annual period.
Part B penalty: 10% per 12-month period you were eligible but not enrolled
The most important period for current Medicare beneficiaries
Life changes can trigger special enrollment opportunities outside of regular enrollment periods.
Most SEPs last 2-3 months from the qualifying event date