Hello @bgjcl, I'm not sure who the point of contact is at Mayo Clinic Jacksonville that can help but wanted to let you know there is another discussion similar to yours that has a response from @colleenyoung that may answer your question.
-- How do I request a VA referral to Mayo Clinic, Jacksonville?
https://connect.mayoclinic.org/discussion/how-do-i-request-a-va-referral-to-mayo-clinic-jacksonville/
Here is the response in the discussion from @colleenyoung - https://connect.mayoclinic.org/comment/1232611/

It sounds like you have a patient portal but have never signed up. You might want to try setting the patient portal up. Here's a link that to set it up - https://onlineservices.mayoclinic.org/dt/signup.