Sei Bar in Medford has some of the best sushi I've had in Boston and they were willing to accommodate a Celiac and serve us a gluten free meal. It was delicious, the service was wonderful and the drinks were tasty.
If you are looking for some decent sushi in the Medford area, Sei Bar is where you should go. Doubly so if you're a Celiac who just wants a tasty Maki Roll and to not have to worry about getting sick. They knew "no tempura, nothing fried and nothing battered" without me even having to tell them. Offered gluten free soy sauce. A+ all around.