Medicare secondary payer cases may involve what?

Medicare secondary payer cases involve instances where another type of health coverage, such as from an employer or another type of insurance, is the primary payer for a person’s health care costs and Medicare is the secondary payer. These cases typically arise when an individual is covered under both Medicare and another health insurance plan or when a third party, such as an employer, has a legal responsibility to pay the beneficiary's medical expenses. In such cases, the beneficiary must submit any medical bills to the primary payer first, and then to Medicare for payment of any remaining costs not covered by the primary payer.