For out-of-state-residents:



Mayo Clinic has chosen (by the board of governors) to be a nonparticipating facility, and thus does not accept assignment from Medicare for out-of-state residents at any of its campuses in Arizona, Florida or Minnesota. Nonparticipating means that Mayo Clinic does not accept the Medicare approved amount as payment in full.



For in-state residents:



Like other health care organizations that do not accept Medicare assignment, Mayo Clinic can bill up to 15 percent above the Medicare allowable amount, for which the patient is financially responsible.

Mayo does not add a straight 15 percent to the bills; rather, Medicare determines how much above the approved amount Mayo can bill. These charges are referred to as Part B excess charges by Medicare. Accordingly, Mayo bills the patient for the full amount of the charges and expects full reimbursement from the patient.uote here