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Pepperdine | Graduate School of Education and Psychology
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Ahndrea Weiner, M.S., LMFT, LPCC

Adjunct Professor
Online Psychology Division, Graduate School of Education and Psychology


Ahndrea Weiner is director of training and clinical supervisor at the Matrix Institute on Addictions, where she has worked for the past 25 years. The Matrix Institute on Addictions is a nonprofit corporation that delivers outpatient substance abuse treatment and mental health services, and is recognized as one of the first outpatient evidence-based treatment models in the country.

Her knowledge and expertise in the field of addictions and motivational interviewing has provided her numerous opportunities to be a clinical supervisor conducting research studies for nationally recognized organizations such as Substance Abuse and Mental Health Services Administration (SAMHSA), Center for Substance Abuse Treatment (CSAT), and National Institute on Drug Abuse (NIDA). Weiner's work has taken her to all parts of the globe lecturing and training in the Matrix Model.

Weiner has authored book chapters and journal articles in the addictions field, co-created the American Association for Marriage and Family Therapy (AAMFT) Substance Use Disorders Online Certification Program, appeared in numerous training videos, and was featured in the HBO 14-part documentary series Addiction.

Apart from her training and supervising duties, Weiner continues to treat clients via her telemedicine online private practice, and is an active member on the board of University of California, Los Angeles's (UCLA) Alcohol and Drug Studies Program.



  • M.S., California State University, Northridge
  • B.A., California State University, Northridge