What's the Difference Between Medicare Part A and Part B? A Kansas City Retiree's Wake-Up Call
The Bill That Didn’t Make Sense
Linda sat at her kitchen table in Belton, two bills spread out in front of her, both from the same hospital stay, neither one matching what she expected to owe. She’d been told Medicare was “free.” She’d been told it was “simple.” Neither of those things turned out to be quite true, and now she was on hold with a billing department, phone propped against her shoulder, going through the same explanation for the third time that week.
She wasn’t confused because she wasn’t smart. She was confused because nobody had ever actually sat her down and explained that “Medicare” isn’t one thing. It’s two separate halves, Part A and Part B, and they cover completely different pieces of the same hospital stay.
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Part A: The Hospital Half
Part A covers inpatient hospital stays, skilled nursing facility care, hospice, and some home health services. About 99% of people pay $0 a month for it, earned through at least 10 years (40 quarters) of paying Medicare taxes while working. But “free” doesn’t mean “no cost.” In 2026, the Part A deductible is $1,736 per benefit period, and a benefit period isn’t a calendar year. It’s tied to how long you’ve been out of the hospital. Get readmitted after a 60-day gap, and a new deductible can apply all over again.
Part B: The Doctor Half
Part B covers outpatient doctor visits, preventive care, and durable medical equipment. This one almost everyone pays a premium for: $202.90 a month in 2026, plus a $283 annual deductible. After that deductible, Medicare picks up 80% of approved costs, and you’re on the hook for the remaining 20%, with no ceiling on how high that 20% can climb in a bad year.
That’s the part that actually explained Linda’s two bills. One was the Part A hospital deductible. The other was 20% Part B coinsurance for the outpatient doctor services tied to her stay. Two different programs, two different bills, same hospital visit.
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Why Do I Pay a Part A Premium If My Spouse Worked?
If you or your spouse worked and paid Medicare taxes for 40+ quarters, Part A is premium-free even if you personally never worked. Fewer than 40 quarters means a monthly premium: $311 with 30-39 quarters, or $565 with fewer than 30.
What’s a Benefit Period, Really?
It starts the day you’re admitted and ends after 60 consecutive days outside of inpatient care. Readmitted after that window closes, and you’re back to square one on the deductible.
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