Baystate Health Appoints Michael Treash as President of Health New England
Posted on October 6, 2025
SPRINGFIELD, Mass. – Baystate Health has announced the appointment of Michael Treash as President of Health New England, effective October 6, 2025. The appointment comes as Baystate Health and Health New England deepen their integration to provide seamlessly accessible and affordable care. Together, as one single integrated system, they are working closely together to lower costs, improve care coordination, enhance patient outcomes, and prioritize value-based care.
“Mike brings a proven track record of navigating the complexities and creative tension of leading a consumer-focused health plan that shares a distinct mission and purpose with physicians, hospitals, and other providers,” Peter D. Banko, President and CEO of Baystate Health. “At this critical moment, his balanced approach to operational excellence and strategic thinking will accelerate Health New England’s ability to provide comprehensive coverage and quality care, a strong network of providers, a simplified experience to navigating the health care system, and cost clarity. We are thrilled to welcome him to Western Massachusetts.”
Treash, a seasoned healthcare executive with more than three decades of leadership experience in provider-based health plans and health system integration, will oversee all operations of Health New England. His responsibilities will include strategic growth, sales, product development, actuarial services, provider relations and contracting, health services, and day-to-day operations.
Treash most recently served as Chief Operating Officer and Senior Vice President at Health Alliance Plan in Detroit (part of Henry Ford Health), where he led operations, information technology, data insights, supply chain, and the project management office while developing and executing a multi-year transformation strategy. His previous leadership roles include Vice President of Enterprise Operations at Priority Health in Grand Rapids (part of Corewell Health).
He holds a bachelor’s degree in political science from Western Michigan University and a Master of Public Administration from Arizona State University.
About Baystate Health
Baystate Health, together with its health plan, Health New England, is a not-for-profit, integrated healthcare system and the largest in western Massachusetts. Serving more than 800,000 people across western New England, Baystate includes an academic medical center, children’s hospital, three community hospitals, outpatient practices, home health and hospice services, and a regional health plan. Health New England provides coverage to more than 160,000 members through commercial, Medicare Advantage, and Medicaid (MassHealth) plans. United by a mission to improve the health of the people in our communities every day, Baystate Health and Health New England deliver high-quality, compassionate care with a focus on quality, safety, value, and experience.
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