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Department of Psychiatry

Department of Psychology

Staff at ARTS

Behavioral Healthcare for Adults, Adolescents and Families



 Tom Brewster, Executive Director

              Tom Brewster, LCSW



Tom Brewster, LCSW, Associate Professor and Executive Director, Addiction Research and Treatment Services, University of Colorado School of Medicine; co-founder and Board of Directors, Signal Behavioral Health Network, Inc.; Board of Directors, Rocky Mountain Institute for Alcohol and Drug Education; Member, Denver Drug Strategy Commission; Chair, Denver Victims Assistance and Law Enforcement Board; Board of Directors, Colorado Association of Alcohol and Drug Service Providers; Co-Investigator, Intervention with HIV+ and HIV- IDUs in Ukraine (NIDA,RO1). Principal Investigator, Aromor Behavioral Health Supportive Housing Project, Center for Substance Abuse Treatment (2010-2013).


Elizabeth Whitmore, PhD       Elizabeth Whitmore, PhD


Elizabeth Whitmore, Ph.D. is the Deputy Executive Director of the Addiction Research and Treatment Services. Dr. Whitmore is a licensed clinical psychologist and an Associate Professor of Psychiatry at the University of Colorado School of Medicine, where she teaches about substance abuse and treatment to medical students and psychiatry residents.

She received her master's degree and Ph.D. in Clinical Psychology from the University of Iowa and has over 20 years of experience in the substance abuse/mental health field. She was previously the Director of our Adolescent Outpatient Service, including the Psychological/Substance Evaluation Service, Outpatient Services, Multisystemic Therapy Services, and Day Treatment. The MST program she directed won the 2010 SAMHSA Science and Service Award for effective implementation an evidence-based practice.

Dr. Whitmore also conducts research in the field of adolescent substance abuse and is currently funded under a grant from the Colorado Health Foundation. She co-wrote the State Guidelines for the Treatment of Adolescent Co-occurring Substance Abuse and Mental Health Disorders. She was also named as one of the 100 Pioneers for Smoking Cessation by SAMHSA.


 Kenneth J. Gaipa
Kenneth J. Gaipa, LCSW, LAC, MAC


Kenneth Gaipa has been the Director of Peer I since March 1994. He is a Senior Instructor with the University of Colorado School of Medicine, Department of Psychiatry, Division of Substance Dependence. He is certified by the Department of Regulatory Agencies as a Licensed Addiction Counselor and is also credentialed as a Master Addiction Counselor (MAC) with the NAADAC Certification Commission.

Mr. Gaipa has extensive experience in various treatment modalities that offered brief and long-term treatment in both residential and non-residential settings. Prior to his employment with the University, Mr. Gaipa worked in the field of chemical dependency/mental health services in both administrative and clinical capacities for over twenty-three years.

He has worked with various groups in the Criminal Justice system developing treatment alternatives for non-violent offenders. Mr. Gaipa's background includes experience as a clinician, clinical supervisor and also worked in administrative positions for several non-profit agencies. In addition, Mr. Gaipa has also developed programming/treatment services in managed care settings in accordance with mental health/substance abuse benefit guidelines.



 Susan Krill-Smith

       Susan Krill-Smith, LCSW



 Susan Krill-Smith, LCSW, is the Director of Synergy, the adolescent residential and outpatient treatment continuum of ARTS. She is responsible for Synergy's fiscal, administrative and clinical oversight and is a member of ARTS Management and Quality Assurance Teams. She began her career at Denver Human Services. In 1974, she received her Masters Degree in Social Work from the University of Denver. At that time and prior to joining Synergy (1993), Susan worked in a variety of other senior positions with ARTS: adult outpatient services; the regions' first specialized women's drug treatment program; HIV prevention/education; the Cocaine Clinic; various street outreach efforts; and a collaboration with Denver Indian Health and Family Services. She also worked in private practice with adults. She is a Licensed Clinical Social Worker and Certified Addiction Counselor III.

As a Senior Instructor (Psychiatry), Division of Substance Dependence, University of Colorado School of Medicine, Susan conducts training and teaching about substance abuse for community groups, various stakeholders, social workers, medical students, and pediatric residents. She is a collaborator on several grants. Susan is an appointee to the Justice Assistance Grant (JAG) Board for the Division of Criminal Justice and was elected to the Board of Colorado Association of Family and Children's Agencies (CAFCA), January 2008.


Susan Turowski-Reher, Adminstrative Services Director 

      Susan Turowski-Reher



Susan Turowski-Reher is the Director of Finance and Information Technology for Addiction Research and Treatment Services (ARTS) with the University of Colorado School of Medicine, Department of Psychiatry.

She graduated Summa Cum Laude from Metropolitan State College of Denver with a BS in Computer Information Systems (CIS). She joined the University of Colorado as a Post Award Administrator for the Office of Grants and Contracts. She was promoted to Post Award Manager before transferring to the ARTS management staff in December 2007. Susan brings to ARTS extensive experience in financial services and in the implementation of information systems. She is responsible for the fiscal, administrative, human resources, and information technology of all the ARTS programs.


Joseph Sakai, MD 

           Joseph Sakai, MD



Joseph Sakai is the Director of Adolescent Psychiatric Services and is a faculty member in the Division of Substance Dependence, Department of Psychiatry, at the University of Colorado School of Medicine.

He graduated with honors from Tulane Medical School in 1997, and completed a community medicine internship, general psychiatry residency, addiction psychiatry fellowship and research fellowship training at the University of Colorado Denver. Dr. Sakai is board certified in psychiatry, with added qualifications in addiction psychiatry. Both his clinical and research work focuses on adolescents with serious substance and conduct problems.