Tufts will not provide your application status (whether it is being reviewed, or that you've been granted an interview) over the phone or email. However, if you ask them if you are missing any parts of your application, they'll be glad to help you out.
Interviews won't actually begin until November (the ones that do have interviews are the really early applicants) so don't worry too much if you haven't heard from Tufts yet. You will soon. Good luck to all of you. 🙂