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.

