Location & Hours 155 NE 100th Street, Suite 306, Seattle, WA 98125 Phone: 206.361.6884 Fax: 206.361.1598 ABCD, Inc. is located in the Northgate Executive Center I on NE 100th St., about seven miles north of downtown Seattle. 1-click directions View Larger Map Hours Office staff are available to schedule appointments and answer questions 8:30 to 5:00, Monday through Friday. Individual providers keep their own schedules but generally offer services between 8:30 a.m. and 6:00 p.m., Monday through Friday. 155 NE 100th St., Suite 306 Seattle WA 98125 206.361.6884     Copyright © 2009-2012, ABCD, Inc.