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What are Medicare Parts A, B, C, and D?

Quick Answer

Part A covers inpatient hospital care (free for most). Part B covers doctors and outpatient ($185/month standard premium in 2025). Part C (Medicare Advantage) bundles A, B, and usually D through a private insurer. Part D covers prescriptions.

Diagram of the four parts of Medicare with what each covers.
Warren Team
Updated April 26, 2026
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The information provided is for educational purposes only and should not be considered as personalized financial advice. Warren is a registered investment advisor. Past performance does not guarantee future results. Please consult with a qualified financial advisor before making investment decisions.

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