How much does the insurance company pay if the person has a $4,000.00 bill a $500.00 deductible and an 80/20 co-insurance?

It is a Medicare supplement policy sold by private insurance companies to fill "gaps" with a major medical policy with a $500 corridor deductible and 80/20 coinsurance provision. If she incurs a loss of $20,000, how much will the insurer pay? ... Jason will pay the first $500 which is his deductible of the total medical bills.

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