WAADAC, the Voice for Washington State Addiction Professionals

NAADAC’s state affiliate in Washington has a new name: WAADAC, the Voice for Washington State Addiction Professionals.  

WAADAC was founded to establish a forum for common interests and concerns to be discussed, bringing about better communications among professional personnel; to create a voice on policy; to recommend guidelines and standards for chemical dependency facilities, programs, and personnel; to take whatever actions are deemed necessary to improve the effectiveness of work on behalf of the chemically dependent and their families. WAADAC is the Washington state affiliate of NAADAC.

Board Members:
President – Terri Roper, MS, NCAC II
Immediate Past President – Jennifer Velotta, MNPL, SUDP, NCAC II, CPP
President-Elect – David Woldtvedt, BA, SUPD
Vice President – Chris Wiegenstein, MSC, MAC, LMHC, SUDP
Treasurer – Paula Fisher, NCAC II, SUDP
Secretary – Ian Hundtofte

Members (or prospective members) are welcome to join the board for our quarterly meetings.  We have committee postions available!  Please contact Terri Roper at terri.roper2016@gmail.com for dates, times, and Zoom meeting login information.

Contact Information


Terri Roper, MS, NCAC II

Regional Vice President

Malcolm Horn, PhD, LCSW, MAC, SAP


Washington State Department of Health
* Exam use - NCAC I & II, MAC (for Clinical Supervision) 

Upcoming Washington Events

NAADAC Approved Education Providers

Education Programs

The Addiction Technology Transfer Center (ATTC) maintains the Directory of Addiction Study Programs (DASP), a comprehensive list of institutions offering certificate, associate, bachelor, master and/or doctoral programs in substance use disorders.

U.S. Department of Transportation Substance Abuse Professionals

Find a U.S. Department of Transportation Substance Abuse Professional