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Announcement from CMHO’s Board Chair


March 9, 2022

The Board of Directors of Children’s Mental Health Ontario (CMHO) is pleased to announce the appointment of Tatum Wilson as CMHO’s next Chief Executive Officer (CEO).

After a comprehensive national search, the Board has selected Tatum to lead the organization at this crucial moment for children, youth, and their families across the province. As CEO, he will help lead the organization through the next phase of its evolution, working towards our vision of an Ontario where kids and young people with mental health needs thrive.

Tatum comes to CMHO with over 20 years of experience in multiple health and social policy environments, including government, academic health science centres, and advocacy organizations. His accomplishments include overseeing the development of Ontario’s first Comprehensive Mental Health and Addictions Strategy and managing the development and implementation of Ontario’s first Poverty Reduction Strategy. Tatum comes to CMHO from the Ministry of Children, Community and Social Services where he is Director of the Youth Strategies Branch. Previous roles include Director of Stakeholder Relations at the Council of Academic Hospitals of Ontario, Director of Community Engagement and Planning at the Centre for Addiction and Mental Health, and other senior roles in government. He holds an Honours Bachelor of Arts in Political Science from McMaster University and a Master of Health Science in Health Administration from the Institute of Health Policy, Management and Evaluation at the University of Toronto.

Throughout his career, Tatum has been a passionate promoter of equity and social justice issues and a leader in community engagement, communications and advocacy. We have every confidence that he will make a tremendous contribution to CMHO.

On behalf of the Board and the entire CMHO membership, I would also like to recognize Mary Kloosterman, who graciously stepped forward to assist the organization during its leadership transition. Mary has done an outstanding job as interim CEO over the past five months.

Please join me in thanking Mary and welcoming Tatum to CMHO as he transitions to his new role in April 2022.


Gregory Glenn

Board Chair, CMHO


About Children’s Mental Health Ontario

Children’s Mental Health Ontario (CMHO) is a not-for-profit, member-based organization that represents almost 100 of Ontario’s publicly-funded and accredited child and youth mental health centres operating in the context of the child and youth mental health sector. Our mission is to ensure that children and youth get the mental health treatment they need within a coordinated and high-performing system of care, so that infants, children, and youth get the mental health supports they need to thrive. To accomplish this, we advocate for investments, policies, and programs for children, youth, and families seeking mental health services in Ontario and work collaboratively with partners in the mental health and addictions sectors and across children and social services. Our advocacy work, on behalf of the sector, aims to champion system change and improvements to address the lack of capacity and equity, so that the needs of all children and youth with mental health issues are met, regardless of who they are, what needs they have, or where they live in Ontario.

For more information on CMHO, please visit:


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