If there are many comp attys in your area - you might fire the one you have and find a better one.
I wish i would have done that in my case - I think mine could have done a better job too. But my doctors didn't have all the knowledge needed either.
Hind sight is great LOL.
read thru some of the other posts and check out the stickys above there's some good info links posted there.
sticky links-
http://neurotalk.psychcentral.com/showthread.php?t=1117
I don't know anything about the Medicare part - you might find some info in the Social Security Disability forum-
http://neurotalk.psychcentral.com/forumdisplay.php?f=28