The YouTube video series called "You Look Great" is done by John Byler, a Boston resident from what I remember. If you watch it, he might say who he used. I haven't seen it in over a year.
https://www.youtube.com/watch?v=x9Xso4qGdlI
Spaulding Rehab also has a concussion program and they have satellite facilities. 1.888.776.4330