Board of directors

The NCADD Board of Directors meets monthly to discuss issues that affect addiction treatment and recovery programs in Arizona, and the direction of NCADD Greater Phoenix. Our board is diversified with specialties including accounting, social work, marketing and more. If you are interested in becoming a board member, please email

meet our

experienced board

Bonnie E. Carlson, Ph.D., MSW

Board President

Bonnie E. Carlson, Ph.D., MSW, has more than 30 years experience on faculty at the university level including her current position as a Professor at the School of Social Work, Arizona State University for 5 years. She has conducted research for over 30 years on domestic violence, physical and sexual child abuse, and substance abuse in women. For 8 years, she was a member of the board of directors of Albany (NY) Citizens Council on Alcoholism and Other Chemical Dependencies and served as its president from 2001 to 2007 when she helped them obtain a facility for recovering women and their children, much like Weldon House.

She grew up in Connecticut and was educated at the University of Michigan where she received her BA, MSW and Ph.D. degrees. She enjoys spending time with her 8 grandchildren, who are scattered all over the country. She also enjoys yoga, meditation, hiking and walking in the Valley with her Cavalier King Charles Spaniel named Juniper. She and her husband look forward to spending more time in Sedona when they both retire.

Natasha Mendoza

Board Vice-President

Ms. Mendoza has over 15 years experience in social work, including a faculty position at the ASU School of Social Work. Prior to that, she was a doctoral fellow at The Research Institute on Addiction in New York where she won awards for her research on mothers in the child welfare system with substance abuse issues. Her current research at Southwestern Interdisciplinary Research Center focuses on women’s alcohol/drug use, perceived coercion to enter treatment and development of recovery.

Rex Ragsdale, M.D.

Board Treasurer

Dr. Rex Ragsdale is a geriatrics doctor in Mesa, Arizona. He received his medical degree from Saint Louis University School of Medicine and has been in practice for more than 20 years. He also speaks multiple languages, including Portuguese and Creole.

Michelle Cordova-Koepke

Board Member

Michelle is a Licensed Social Worker at St. Joe’s Hospital since 2013.  Prior to that, she provided individual and group therapy, as well as case management for women in treatment with NCADD.  Michelle earned her Master’s Degree from Arizona State University and has always had a passion for helping women in recovery.

Cathy Wilson

Board Member

Cathy is an Elementary School Teacher who recently graduated from ASU with a Masters in Education.  Cathy also brings several years of experience as a coach and mentor to those working on their recovery.

Catherine Warriner

Board Member

Ms. Warriner has over 30 years of experience providing leadership, support, and education in a variety of behavioral health and education settings. She has developed and implemented therapeutic foster care programs, as well as educational and clinical programs for families of substance abusers. Ms. Warriner has experience providing contractual oversight for quality assurance of health plans’ Medicaid services. She has also been responsible for providing technical assistance and project management in an initiative to improve health outcomes for opiate-addicted pregnant women.

Currently, Ms. Warriner is a Project Manager for PATH (Partnership to Advance Tribal Health). Her work includes healthcare quality improvement and support at two Arizona facilities of the Indian Health Services system.

Ms. Warriner also serves as a volunteer and member of the Event Committee for Tovrea Castle. In her free time she enjoys traveling with her husband and friends.


Ms. Warriner holds a Master of Science degree in Education, with a focus on Secondary Guidance Counseling, from Bucknell University and a Bachelor of Arts in Sociology from Bloomsburg University of Pennsylvania

Douglas Mattaino

Board Member

Joanne Hatton

Board Member
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