@mk52dk51, you probably already have this information, but just in case:
To find out if your insurance is accepted in Rochester or Jacksonville, and to ask your questions about paying out of pocket, please contact Billing & Insurance https://www.mayoclinic.org/billing-insurance

Patient Account Services representatives are available to assist you with the financial aspects of care at Mayo Clinic. Please contact them here https://www.mayoclinic.org/billing-insurance/contact-us