Before arriving What's smart to address before your visit: financial matters checklist, pre-authorizations and preapprovals, medical records and other items to consider. Patient and financial checklist Financial and other matters to address before arriving at Mayo Clinic. Find out more Approval from your insurer Obtaining approval from your insurance for your appointment, and why you may need both pre-authorization and pre-certification before care. Find out more Mayo Clinic Authorizations and Service Terms All patients or guardians must sign this form prior to care at Mayo Clinic. Find out more Registration Why and how to complete patient registration; where to find registration desks when you visit Mayo Clinic. Find out more International patients Patients visiting Mayo Clinic from international locations typically follow different billing and insurance processes. Find out more Home Before arriving