Executive Leadership Team

Leadership Teams

Maine Behavioral Healthcare operates under the guidance of three primary leadership bodies:


Strategy Team

The MBH Strategy Team is made up of the Maine Behavioral Healthcare CEO, Spring Harbor Hospital President, Chief Financial Officer, Senior Vice Presidents, and the Chief of Psychiatry.

Stephen Merz

Stephen M. Merz, FACHE

President & Chief Executive Officer

Stephen Merz, FACHE, the President and Chief Executive Officer of Maine Behavioral Healthcare, has more than 20 years of experience as a healthcare executive. Previously he was the Vice President and Executive Director of Behavioral Health at Yale New Haven Hospital in Connecticut, one of New England’s largest hospitals.

Starting as an administrative fellow in 1995, he assumed ever-increasing responsibilities over more than 20 years in New Haven becoming vice president and executive director of behavioral health. He undertook a number of initiatives to help transform and integrate mental health care into the larger system and the community, including programs that brought mental health care into other medical services and setting up transitional support for patients returning home.

Stephen holds a master’s degree in Health Services Administration from the University of Michigan School of Public Health and a bachelor’s degree from Cornell University.


Mary Jane Krebs2

Mary Jane Krebs, FACHE

Senior Vice President of Intensive Services
President of Spring Harbor Hospital

Mary Jane Krebs, FACHE, is the President of Spring Harbor Hospital and Senior Vice President of the Intensive Service Line at Maine Behavioral Healthcare. She is leading the priority of safe patient flow and lowering lengths of stay for adult patients at Spring Harbor, as well as cultivating employee engagement across the Maine Behavioral Healthcare system to attract and retain the best professionals in the field.

Previously, Mary Jane was the CEO of Community Counseling Center, now also part of Maine Behavioral Healthcare; Chief Clinical and Nursing Officer at Spring Harbor and Maine Medical Center’s Department of Psychiatry; and Vice President of Clinical Services at Jackson Brook Institute. Mary Jane completed her undergraduate nursing degree at the College of New Jersey and graduate degree at New York University.

She is a fellow in the American College of Healthcare Executives, a steering committee member of the National Association of Psychiatric Health Systems, serves on the Southern Maine Area on Aging Board of Trustees, the Maine Hospital Association Board of Directors and chairs the MHA Mental Health Council.


Michael Abbatiello

Michael Abbatiello, MPPM, CPA

Interim Senior Vice President Operations and Chief Financial Officer

With over twenty-seven years of experience in healthcare finance, Michael R. Abbatiello, CPA, MPPM is the Chief Financial Officer of Maine Behavioral Healthcare managing the areas of Finance, Patient Accounts, Supply Chain, Practice Management, Health Information Management, Revenue Cycle, Information Services and Facilities Management. Michael has taken the lead in negotiating behavioral health commercial insurance agreements on behalf of MaineHealth, leveraging the strategic advantages of our entire Behavioral Health Service Continuum.

Michael is a Certified Public Accountant and holds a Master's Degree in Public Policy and Organizational Management from the Muskie School of Public Service where he developed longitudinal research on the financial vulnerability of Maine's social service sector. Taking an active role in Augusta, Michael advocates for financial and policy matters that impact behavioral health resources across the MaineHealth system. His entrepreneurial spirit and focus on customer service comes from a history of a family-run business where he learned the benefits of investing in a positive customer experience.


Operations Council

Maine Behavioral Healthcare Operations Team group photo 

This key leadership group was formed to enhance and streamline communication between our organizational leaders, primarily focusing on operational issues. The Council meets weekly to review safety events, critical incidents, announcements, program dashboard review, in addition to a rotating cycle of weekly topics in four key areas:

  1. Inpatient/Intensive Services,
  2. Ambulatory/Integrative Services,
  3. Safety/Quality, Performance Improvement, and
  4. Corporate/Financial services and People & Culture

Medical Staff Leadership Council

UnitedWeThrive small2 

This team of clinical leaders includes members of the Strategy Team, and our medical staff leaders. The purpose of the council is to provide overall clinical direction for MBH, including new program development, and oversight of key quality/value metrics, and clinical leadership.