by David Bynon, last updated

What is Coinsurance in Medicare?

Coinsurance is a percentage of the total you must pay for a medical service.

In the federal Medicare program, Original Medicare uses coinsurance, whereas Medicare Advantage health plans primarily use copayments. Medicare Part A and Medicare Part B both have coinsurance and deductibles that average out to approximately 20% of the total cost of Medicare-approved services.

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