@cindy1964 I have been a patient at Mayo since 1982. They do not require outside medical records. They will ask if you have brought any outside records or xrays. On your first visit they will ask you lots of questions and ask you about what brought you there. That’s when you can tell them your medical history.
I have never brought any records from my home doctors. Sometimes they will ask you about results of testing you’ve already had done, that way they aren’t repeating something you’ve had done already. They might repeat something if your results of tests were questionable.
Don’t let the lack of medical records stop you from going to Mayo. If you think you might be wanting to go, even if not for a few months, I would call now for appointments as they are extremely busy and it might just take months to get in.
Even though you don’t need a referral, having one will speed up the process. A friend of mine actually had her doctor call Mayo to get her an appointment and she got in in just a week. Sometimes that works and sometimes it doesn’t, worth a try though.
Good luck to you.