Washington International School 3100 Macomb St., NW Washington, DC 20008 View map location Phone:  202-243-1800 Fax:  202-243-1808 Head of School:  Richard Hall Private School, Grades Pre-K - 12 School Enrollment:  810 IB Students:  115 (all diploma) Diploma Program Coordinator:  David Merkel E-mail:  merkel@wis.edu Web Site:  Washington International School Washington International School is one of the oldest IB schools in the world. Every graduate in the school's history has been a full IB student. WIS was also one of the first schools in the world with authorized IB curricular programs from Pre-Kindergarten through Grade 12: Primary Years Program, Middle Years Program and IB Diploma Program. Please contact Dawn Darling darling@wis.edu for information on the Primary Years Program and Neil MacDonald macdonald@wis.edu for information on the Middle Years Program at Washington International School. IB Courses Offered Start