I was a self referral. I was first seen and evaluated by the General Internal Medicine department at the Mayo Clinic in MN. After a very comprehensive exam and their studying the CD's I brought with test results and local physician's notes, I was referred to, and given appointments in numerous departments of the Clinic. Plan on an extended stay. They are great about setting up your appointments but it keeps you busy. With my issues involving numerous areas I managed to go from one week to two. But I got answers and that's why I came. Keep pursuing.