At Ad Astra Harm Reduction, we are committed to transforming public health responses to substance use by integrating evidence-based harm reduction strategies. Led by Mary Brewster, MSW, a seasoned expert in harm reduction, public health policy, and program development, we provide consulting services to organizations seeking to build and enhance harm reduction programs.
Mary Brewster brings nearly 20 years of leadership in harm reduction, substance use disorder treatment, and healthcare integration. Her experience spans executive roles, including serving as Associate Commissioner of Harm Reduction at the New York State Office of Addiction Services and Supports (OASAS), where she oversaw statewide initiatives to expand harm reduction services. She has also directed programs at Mount Sinai Hospital, Harlem United, and Howard Brown Health Center, managing multi-million-dollar budgets
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