Yep, just did this a few weeks ago actually. The process was as complicated as printing out a piece of paper, filling out the required info and dropping it in the nearest mailbox. Got my records back the next week. A few weeks after that I got a package with my COMPLETE medical (FAA) history in it. That one might have been a little overkill, but it's never a bad thing to know exactly what's on all your records, even if you're not expecting to find anything.

Oh, and ALWAYS check the "I want a copy too" box when filling out all the PRIA paperwork.