Day One

About Day One

Day One’s mission is to improve the health of Maine by providing substance use, mental health, and wellness services to youth and families. Our vision is that all Maine youth will have opportunities to realize their full potential to live productive, healthy and rewarding lives. By providing integrated care for youth and families, we give teens with substance use disorder and mental health needs the tools and skills they need to break the cycle of substance use suffered by generations of Mainers. Headquartered in South Portland, Maine, Day One has been selected seven times as a Best Place to Work in Maine. For more information about Day One, please visit

Our services include training and education, assessment, screening, referrals, and treatment for individuals, groups, families, schools, and communities throughout Maine. We offer an integrated system of care for youth and families.

Day One believes in providing services within the system supporting the individual/family as critical to the long-term development of a recovering lifestyle. We offer services in residential, school, outpatient office, homeless teen center and criminal justice settings.


Volunteer Advocate

June 2020 Providence, RI
“I liked that I was able to talk to survivors and learn more about the therapeutic process”
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