@motwally I have a Medicare Advantage plan and I'm a Rochester Mayo patient. It really depends on if your Medicare Advantage plan considers it out of network or not authorized.

"Mayo Clinic's campus in Rochester, Minnesota. Patients covered by Medicare Advantage HMO plans without authorization may not be seen. Patients cannot be seen on a self-pay basis." -- More about Medicare: https://www.mayoclinic.org/patient-visitor-guide/billing-insurance/insurance/accepted-insurance/medicare/more-on-medicare