Square One Names Stephanie Marrero-Wilson Vice President
The children's mental health agency has welcomed a clinical leader to oversee Support Services and its Cornerstone Therapy Center.
Updated on Nov. 6, 2026 in People
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Square One has welcomed Stephanie Marrero-Wilson as vice president of Support Services, where she will lead the agency's Cornerstone Therapy Center. The hire comes as the agency expands its mental health offerings for children from infancy through age 12.
Why it matters
The appointment responds to growing demand for early childhood mental health supports in the Springfield area. Square One is strengthening its clinical leadership as it broadens services for young children and their families.
Marrero-Wilson brings more than 15 years of experience in children's behavioral health to the role, according to Square One's announcement. The source does not detail the size of the clinical team she will supervise or the budget for the expanded services.
The players
Square One
Square One is a Springfield-based children's mental health and developmental services agency founded in 1883.
Stephanie Marrero-Wilson
Marrero-Wilson is a licensed clinical social worker and Westfield State University graduate who previously led intensive care coordination at Behavioral Health Network.
The details
Marrero-Wilson, a licensed clinical social worker, most recently served as intensive care coordination clinical supervisor at Behavioral Health Network. She will oversee the agency's clinical and developmental supports and is tasked with strengthening staff training, family partnerships, and community collaboration.
Timeline
1883: Square One is founded.
2019: Cornerstone Therapy Center is introduced with initial funding from the LEGO Foundation.
2022: Marrero-Wilson founds Beneath the Healing LLC.
November 6, 2026: Marrero-Wilson's hire is announced.
Legacy Program
Square One's Cornerstone Therapy Center, launched in 2019 with LEGO Foundation funding, is the program Marrero-Wilson now leads. Her appointment extends that model as the agency broadens mental health services for children from infancy through age 12.
Families in the Springfield area seeking mental health supports for young children may see expanded offerings at Square One as the agency grows its services. Parents and caregivers of children up to age 12 could benefit from strengthened family partnerships the new leadership is tasked with building.
The takeaway
Leadership changes at community-based providers can signal shifts in how early childhood mental health services are delivered locally. Families seeking support for young children may find it useful to ask providers about their clinical supervision and family engagement practices.
Further reading
Explore more People coverage in Springfield to see other leadership changes shaping the region's business community.
Source note: This article includes information reported by BusinessWest.
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