Hi Justin, Coincidentally, I recently tried to schedule an online appt w an endocrinologist at Mayo with no luck, so I called the number listed for assistance. The operator told me that usually you have to have been seen by a Mayo clinic doc in person before you can schedule a virtual appointment. That's just my experience. The operator did offer me an alternative route to a Mayo clinic doc which is to see a doc at an associated hospital in my area. That doc would then have access to resources at Mayo for a more informed opinion. I have not done that yet as I am waiting to see my GP next week so I have current blood work available. My reason for being interested in this is that I have had high serum calcium and high PTH intact for my past two tests, but my local Endo is hesitant to suggest surgery, because I have had two prior parathyroidectomies, the second resulting in a paralyzed rt vocal cord. Scar tissue makes a 3rd surgery precarious. I am interested in a second opinion at a higher volume parathyroid clinic than is available in my medium sized city. I tried two other well known clinics (not Norman), but each charged ~2K for second opinions.