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Medicare7 min read

Medicare Parts A, B, C and D Explained

By Laurence Paolino, RN

Medicare is divided into parts, and each one covers different things. Here is a plain-language overview.

Part A — Hospital insurance

Part A generally helps cover inpatient hospital stays, skilled nursing facility care, hospice, and some home health care. Many people do not pay a monthly premium for Part A if they or a spouse worked and paid Medicare taxes long enough.

Part B — Medical insurance

Part B generally helps cover doctor visits, outpatient care, preventive services, and some medical equipment. Part B has a monthly premium, and costs such as deductibles and coinsurance may apply.

Part C — Medicare Advantage

Medicare Advantage plans are offered by private insurance companies approved by Medicare. They combine Part A and Part B coverage and often include Part D drug coverage. Plans may have networks and different cost-sharing rules.

Part D — Prescription drug coverage

Part D plans help cover prescription medications. Each plan has its own list of covered drugs, called a formulary, so it is helpful to review your medications when comparing.

Key takeaway: Knowing what each part does makes it easier to understand how your options fit together.
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