It turns out that this is an evaluation requested by my lawyer to prove my inability to return to work. I was only able to complete 1/2 of the process today, I got too tired. He said the end report ends up being around 70 pages. I did some cognitive testing, answered a LOT of questions about everything from what I do at home, to my education, work history, to work duties, etc.
And he says, when we meet again, it will be another couple hours.

I just got approved for 8 more days of functional rehab as well.