Contact Us Contact Us Contact the Trisomy 18 Foundation with any questions or requests for information. Online Form - Website Contact Us Form Our Location Trisomy 18 FoundationNational OfficePO Box 320Flushing, Michigan 48433 Get in Touch 855-318-3181 (ET)Voicemails answered within 24 hrs.kshaughnessy@trisomy18.orgKris Shaughnessy, Executive Director Make a Donation To send a donation by mail, download this form and mail it with your check to our address listed on this page.