Where Matsuzaka gets his sushi

Oga's on Rte. 9 in Natick? Beantown Bloggery has it on good authority - from a sushi-chef friend:

... How often does Daisuke eat there? I was told once a week. How often does his wife eat there? Once or twice a week. Daisuke's a pretty busy guy, so often times it's just his wife and a few of her friends. ...