What happens if my other insurance denies coverage for a service that Medicare covers?

If your other insurance denies coverage for a service that Medicare covers, Medicare may still pay for the service as long as it is a covered benefit under Medicare. The coordination of benefits process ensures that both your insurance and Medicare work together to determine the primary payer for your healthcare costs. If your other insurance denies coverage, Medicare will step in and become the primary payer. However, keep in mind that Medicare will only cover its share of the approved amount for the service, and you may still be responsible for deductibles, coinsurance, or any costs not covered by Medicare. It is important to contact both your insurance and Medicare to understand how the denial will impact your coverage and to resolve any issues.