Directions Sudbury Office 142 North Road, Sudbury, MA 01776, 978-287-0810 This is a group practice located at the Hallowell Center, in Sudbury, Massachusetts. The Hallowell Center is a multi-disciplinary group practice specializing in ADD and co-existing conditions in children and adults. Please go to DrHallowell.com for directions to the Hallowell Center. Bowdich Building Belmont Office 115 Mill Street, Bowdich Building, Belmont, MA 02478, 617-859-0343 This is a private practice located at McLean Hospital, but not affiliated with McLean Hospital. The practice is on the second floor of the Bowdich Building, 115 Mill Street, in Belmont, Massachusetts. Please click on the photo to the right for directions to McLean Hospital. Boston Office 264 Beacon Street, Boston, MA 02116, 617-859-0334 Public Transportation: Take the MBTA Green Line (B, C, D, or E) and exit at the Copley stop. Take Dartmouth Street four short blocks toward the Charles River, and make a left onto Beacon Street. The building is located half-way down the block on the right, and the office is on the fifth floor. Driving: From the West: Take the Copley exit off of I-90 East(Mass Turnpike). Keep right on the exit ramp. Take an immediate left on Dartmouth Street. Follow Dartmouth Street six blocks, and make a left on Beacon Street. From the North: Take the Cambridge exit off of I-93 South, and follow the signs for Storrow Drive. Make a left off of Storrow Drive at the Back Bay Exit, and take an immediate right onto Beacon Street. From the South: Take the Storrow Drive exit off of I-93 North, and follow the signs for Storrow Drive. Make a left off of Storrow Drive at the Back Bay Exit, and take an immediate right onto Beacon Street. Parking: Metered parking is located in front of the office on Beacon Street between Dartmouth and Exeter Streets. There are also meters on Beacon Street between Arlington and Clarendon Streets, and on the cross streets of Beacon Street.