Welcome to Mass! I am just starting my journey and haven't been to a group yet but there is a LAP-BAND® support group about 22 minutes from you in Burlington, MA at the Lahey Clinic (that is where I will be getting my surgery).
I have attached the link to the website: Select a Medical Service | Surgical Weight Loss Center | Further Information
They meet the Last Tuesday of each month from 6-7:30. The only downside is you have to pay for parking- but the hospital is really nice. It is also kind of big and can be a little overwhelming at first- but once you get where you're going it's fine!
Hope this help