Contacting the ADDP
Association of Developmental Disabilities Providers
217 South Street
Waltham, MA 02453
Phone: 781-891-7327
Fax: 781-891-0429
ADDP Staff
Gary Blumenthal, President & CEO
781-891-7327, Ext 12
Kate O'Neill, Training & Policy Director
781-891-7327 Ext 13
Oanh Bui, Administrative Coordinator
781-891-7327 Ext 10
Kathleen Hamilton, Bookkeeper
781-891-7327, Ext 10
Cris Caruso, Office & Technical Support
781-891-7327, Ext 11