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    Medicare Basics

    Understanding Medicare Parts A & B

    March 12, 2026
    4 min read
    Understanding Medicare Parts A & B

    Medicare can feel like a maze of letters and rules, but understanding the foundation—Parts A and B—is your first step toward confident healthcare planning.

    What is Medicare Part A?

    Often called "Hospital Insurance," Part A covers inpatient hospital stays, care in a skilled nursing facility, hospice care, and some home health care. For most people who have paid Medicare taxes while working (usually at least 10 years), Part A is premium-free.

    What is Medicare Part B?

    Part B is your "Medical Insurance." It covers certain doctors' services, outpatient care, medical supplies, and preventive services. Unlike Part A, everyone pays a monthly premium for Part B, which is typically deducted directly from your Social Security check.

    The Gaps in Original Medicare

    While Parts A and B provide a solid foundation, they don't cover everything. You'll still be responsible for deductibles, copayments, and coinsurance. More importantly, Original Medicare does not have an out-of-pocket maximum, meaning your financial risk is uncapped.

    This is why many people choose to enroll in a Medicare Supplement (Medigap) plan or a Medicare Advantage plan to help control these out-of-pocket costs.