Child Heart Associates Yarmouthport 244 Willow Street Yarmouth Port, MA 02675 (508) 757-7300 scheduling (800) 757-0803 fax Take Route 6 on Cape Cod to Exit 7. Turn North on Willow Street. 244 Willow Street is the second building on the right. Park in front or along the side streets, but please do NOT park in the lot behind the building. Thanks!