Leadership and Staff

Brian Slattery, MA

Chief Executive Officer

Brian has been Chief Executive Officer of Marin Treatment Center since 1984. He has managed a variety of health and human service non-profits since getting his master’s degree in Counseling from San Francisco State University.

Brian has taken on leadership positions with issues of concern to disenfranchised groups including people living with HIV/AIDS, those infected with hepatitis C and people seeking to heal from their addictions using medication assisted treatments and harm reduction services.

In the 1980’s, Brian served as Chair of the Marin AIDS Commission for four years. He helped form the Marin Hepatitis C Task Force and the Marin AIDS Task Force. Today, he continues to serve on the Marin Juvenile Justice Coordinating Council and is member of the Rx Safe Marin community task force.

As an expert witness, Brian has testified before the US Congressional AIDS Budget Task Force, US Senate Criminal Justice Subcommittee on Juvenile Justice and on numerous occasions before the California Assembly and Senate Criminal Justice Committee advocating for juvenile justice law reforms. Most recently, he has worked on the planning and implementation of the Affordable Care Act behavioral health service system in Marin County.

Jonathan Fong, MBA

Marin Treatment Center

Jonathan Fong has been with Marin Treatment Center since 2012 and has over 20 years of experience developing and managing non-profit and for-profit healthcare agencies, and owns his own health agency.  Jonathan has spent his professional career working in substance dependence and mental health industries and has particular expertise in strategic leadership, healthcare information systems, performance and quality management and business analytics.

Jonathan is passionate about developing and managing high quality and affordable healthcare agencies and deeply believes that mental health and substance use treatment services should be available to everyone, despite the individual’s economic situation. His vision is to develop Marin Treatment Center into a full service behavioral health provider that can offer a spectrum of mental health and substance use treatment services to low and middle income Marin County residents.

Since his arrival Jonathan has introduced electronic health systems, broadened Marin Treatment Center’s services by adding drug free programs and mental health programs, and has negotiated private health insurance contracts with insurers such as Kaiser, Anthem Blue Cross, Aetna, and Veterans Administration. These initiatives are giving local residents a much needed alternative to Marin County’s high cost health providers.

Jonathan earned his undergraduate degree in Organizational Behavior from University of San Francisco, and has a Master’s in Business Administration (MBA), with an emphasis in strategic leadership from Dominican University of California.

Russell Sandberg, MD

Medical Director

Russell Sandberg has been Medical Director of Marin Treatment Center since 1997.  Dr. Sandberg received his undergraduate degree from University of Chicago, and his medical degree specializing in Cardiology from University of Chicago School of Medicine. He received a master of science in Biomedical Engineering from Drexel University, where he was a Special Fellow at the National Heart Institute.

Dr. Sandberg’s medical career has included work at the University of Arkansas, Little Rock Veterans Administration Hospital, the University of Missouri School of Medicine, University of Illinois School of Medicine, San Francisco Department of Public Health, and many years in private practice in Internal Medicine and Cardiology.

He has also worked for many years in the field of addiction medicine including: Consultant in Substance Abuse to the Veterans Administration Hospital in Danville, Illinois; Medical Director, Outpatient Chemical Dependency Program, Milwaukee Psychiatric Hospital, Wauwatosa, Wisconsin; and Medical Director at Redwood Empire Addictions Program, Santa Rosa, California.

Ryoko Moriguchi, MFT

Clinical Director

Ryoko joined Marin Treatment Center in 2018. Prior to being appointed as Clinical Director of MTC, she has worked in various behavioral health programs serving low-income and underserved communities in the San Francisco Bay Area since 2000. Her areas of expertise include assessment and treatment for co-occurring conditions, disability evaluation and advocacy, and trauma-informed care.

She went through a vigorous training and certification process for Multidimensional Family Therapy (MDFT) by the University of Miami from 2008 to 2011, and she was certified as a Clinical Supervisor of MDFT in 2011.

In 2015, Ryoko completed the 7-month training program of Clinical Supervision offered by the Santa Clara County Behavioral Health Department. As a clinical manager, she has implemented evidence-based practices, including Trauma-focused CBT, Dialectical Behavioral Therapy, Motivational Interviewing, and Seeking Safety.

She earned a BA in Journalism from Doshisha University, Kyoto, Japan before coming to the USA. After years of working and learning English as an immigrant, she earned an MA in Substance Abuse Counseling from Northeast Louisiana University; it was a lucky chance that she chose addiction counseling as her major. She finds great satisfaction in working in a challenging field that continues to evolve, and she continues to learn from both clients and her devoted and passionate colleagues in the field.

Ryoko is a member of California Association of Marriage and Family Therapists and International Association of EMDR (EMDRia).

Sandy Kameron, MA, CADC-I

Senior Counselor

Sandy came to Marin Treatment Center in 1991 and holds a Masters Degree in Counseling Psychology from Dominican University. She facilitated MTCʼs Parent Addiction Counseling and Education program (P.A.C.E.) from 1992-94 and has a particular interest in helping addicted parents (who are often second and third-generation substance abusers) reach their fullest potential in emotional health and sobriety.

Active on the County level, she has served on the Marin Perinatal Council, and has been invited to present at trainings for the Court-Appointed Special Advocates (C.A.S.A.), Bay Area Community Resources (B.A.C.R.) and Marin General Hospital. Additionally, she served as Marin Treatment Center’s liaison to the Marin Health and Human Services Systems Integration Steering Committee and participated in the drafting of the Quality Improvement Charter for the Implementation of CCISC (Comprehensive, Continuous Integrated System of Care) in Marin County.



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1466 Lincoln Avenue
San Rafael, CA 94901-2021



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