300 Longwood Avenue Boston, MA 02115 (617) 355-6000 Clinical Services: Contact Us Location Address Contact Children's Hospital Boston 300 Longwood Avenue Boston, MA 02115 617-355-6000 To schedule an appointment, call 617-355-8686 or email echo@cardio.chboston.org To talk to one of our physician representatives, call 617-355-6429 or email echo@cardio.chboston.org For general administrative questions, please call 617-355-7655. The information on this website should not be taken as medical advice, which can only be given to you by your personal health care professional. Copyright © Children's Hospital Boston. All rights reserved.