
The intersection of mental health challenges and substance abuse is know as “co-occurring disorders.” It is at that intersection that Ardsley resident Stephanie Marquesano planted her flag and drew attention to the tragedies that occur there. She launched her campaign in 2013 after the death of her 19-year-old son b y founding the harris project, the nation’s only non-profit that concrneates on creating a system of car for those with, or at risk of, such co-occurring disorders.
For that work, Ms. Marquesano was named New York State Senate’s 2026 “Women of Distinction” award by Senate Majority Leader Andrea Stewart-Cousins. Marquesano “embodies resilience, purpose, and leadership,” said the Majority Leader in announcing the award. “Her work is saving lives, supporting families, and giving communities the tools they need to respond with compassion and evidence-based care.”
Her non-profit has developed integrated treatment models and launched CODA (Co-Occurring Disorders Awareness), a peer-led prevention initiative supporting youth and families. Through the program, said Marquesano, “we are raising awareness, advancing prevention, and working to ensure that all youth, especially those at risk, are seen earlier, understood more fully, and supported through integrated, compassionate care.”















