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Medicare

Medicare in 12 Minutes: The Plain-English Guide

Original Medicare, Medicare Advantage, Medigap, and Part D — what each part covers and how they fit together.

12 min readUpdated February 10, 2026Zaki Enterprise Advisors

Medicare has four parts and two main paths. Once you see the shape of the system, choosing the right coverage becomes straightforward.

Part A and Part B — Original Medicare

Part A covers hospital stays. Part B covers doctor visits and outpatient care. Together they pay about 80% of approved services with no annual out-of-pocket cap.

Part C — Medicare Advantage

Private plans that combine A, B, and usually D into one plan with an out-of-pocket max — often with $0 premium but a network.

Part D — Prescription drugs

Stand-alone drug plans that pair with Original Medicare. Formularies vary — always check that your specific medications are covered.

Medigap (Medicare Supplement)

Pairs with Original Medicare and pays most of the 20% coinsurance. Plan G is the most common choice for new enrollees.

About the author

Written by Zaki Enterprise Advisors — Licensed Insurance & Tax Professionals.

Reviewed by the same Texas advisors who work with our clients on tax preparation, ACA, Medicare, and property & casualty coverage.

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