Telephone: 800-221-4602
Fax: 646-870-9320
Email: info@ndss.org

Toll-free NDSS Helpline:
Phone: 800-221-4602
Email: info@ndss.org

Locations:

National Down Syndrome Society, Headquarters
8 E 41st Street,
8th Floor
New York, NY 10017

NDSS National Advocacy & Public Policy Center
1100 H St NW,
Suite 1030
Washington, DC 20005