David Flack, MA, LMHC, CDP, Therapist

Mountlake Terrace and Southcenter Locations

Mountlake Terrace and Southcenter Locations

David Flack, MA, LMHC, CDP

Welcome! I’m a Licensed Mental Health Counselor (LMHC), Chemical Dependency Professional (CDP), and National Certified Counselor (NCC). For twenty years, I’ve worked with adolescents and young adults impacted by trauma, mental health challenges, and substance use. Much of this experience has included working with teens with co-occurring disorders, trauma survivors, youth impacted by the substance use of others, LGBTQ individuals, and recently hospitalized adolescents.

Along the way, I’ve come to believe in the possibility of change, the importance of connection, and the value of humor.

My counseling approach is strongly influenced by existential psychotherapy and attachment theory, but I tend to be fairly pragmatic in sessions, utilizing what seems most useful right now. Most often that’s a mix of motivational interviewing, narrative approaches, practical mindfulness, and cognitive-behavioral traditions.

I also have significant training and experience using dialectical behavioral therapy, an evidence-based approach I find especially useful when working with self-harming, highly anxious, or oppositional teens.

In addition to my clinical work, I regularly provide professional development and continuing education programs for helping professionals. I’ve also presented for non-profit agencies, county sponsored events, and over 100 times at international, national, and regional conferences -- including multiple times at the American Counseling Association, the Association of Experiential Education, and the Washington Behavioral Health Council.


Master of Arts in Counseling Psychology, City University of Seattle
Bachelor of Arts in Applied Psychology, The Evergreen State College
Certificate in Chemical Dependency Counseling, Seattle Central College

Post-Master’s Certificate in Trauma-Informed Care and Counseling, University at Buffalo


Licensed Mental Health Counselor (#LH60548722), State of Washington
Chemical Dependency Professional (#CP00006223), State of Washington
National Certified Counselor, National Board of Certified Counselors
Certified Clinical Trauma Professional, International Association of Trauma Professionals

Child Mental Health Specialist, State of Washington

Sexual Minority Mental Health Specialist, State of Washington

Find out more about my practice at www.davidflack.com.