Learning Center Helpful Medicare guides written in plain English for people who would rather not read an insurance textbook. Getting Started When to Enroll Key Medicare enrollment timelines and deadlines. Read Guide → Medicare Parts Explained Parts A, B, C, and D — what each covers in plain English. Read Guide → Special Enrollment Periods What triggers an SEP and how long your window lasts. Read Guide → Late Enrollment Penalties How permanent surcharges work — and how to avoid them. Read Guide → Choosing Your Coverage Medicare Basics Supplement and Advantage explained side by side. Read Guide → Advantage vs. Medigap A full comparison to help you choose the right path. Read Guide → Doctor Networks How networks affect your access and out-of-pocket costs. Read Guide → How to Choose a Plan A practical framework for comparing your options. Read Guide → Costs & Planning Prescription Costs Questions to ask before choosing drug coverage. Read Guide → Medicare Costs in 2026 Premiums, deductibles, and out-of-pocket numbers this year. Read Guide → What Medicare Doesn’t Cover Dental, vision, hearing, long-term care — and your options. Read Guide → Medicare IRMAA What high earners pay extra — and how to appeal it. Read Guide →