Directions to Our Office ZOLL Medical Corporation Corporate Headquarters269 Mill RoadChelmsford, MA 01824-4105(800) 348-9011 (toll free)(978) 421-9655 Local hotel options View Larger Map From Burlington and 128: North on Route 3, take Route 129 exit (Chelmsford/Billerica)At end of ramp, take a rightAt second set of lights, take a left onto Mill Road (stay in left lane)Follow Mill Road around to the leftAbout 1/16 of a mile, on your left "Quorum Office Park" Take a left into the park.Take a right toward "269" ZOLL From 495: Take Route 3 S. to Route 129 exit (Chelmsford/Billerica)At end of ramp, take a left at the set of lights, staying in left lane.At next set of lights, take a left onto Mill Road (stay in left lane) Follow Mill Road around to the left About 1/16 of a mile, on your left "Quorum Office Park" Take a left into the park. Take a right toward "269" ZOLL