I went to my nuerologist twice, and wasn't impressed by any of the visits. First one he did some reflex tests, and had me describe my symptoms. When I was done, he said, "yep you've got a typical concussion. Get rest."

Went back two weeks later to see about going back to work, and wasn't even checked before he told me that it shouldn't be a problem.

I've found more info on the internet than I got from him.