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Walter S. Mathis, MD

Assistant Professor of Psychiatry

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Walter S. Mathis, MD


Stan Mathis is the medical director of the Assertive Community Treatment team at the Connecticut Mental Health Center and an assistant professor in Yale’s Department of Psychiatry. In a previous career, Stan was an architect and urbanist, a background that informs both his clinical and research/teaching work. On the ACT team, he primarily takes care of patients in their homes or in the community, seeing firsthand the impact of the extra-clinical environment on their lives and wellbeing. He also co-leads the structural competency track of the social justice and health equity curriculum, developing didactic experiences that combine data-driven and experiential learning to help psychiatry residents build a deeper understanding of New Haven and the forces, historical and current, that impact its population.

Education & Training

  • Public Psychiatry Fellow
    Yale School of Medicine (2017)
  • Resident
    University of Arkansas for Medical Sciences (2016)
  • Intern
    University of Arkansas for Medical Sciences (2013)
  • MD
    University of Arkansas for Medical Sciences (2012)
  • BA
    Yale College, Architecture

Departments & Organizations