Our Leadership

BAMSI’s Executive Management Team and Board of Directors come from a variety of backgrounds but we all are dedicated to the thousands of individuals and families that we serve each year.

We are relentless advocates dedicated to improving individuals’ lives while changing perceptions about people with mental illness, developmental disabilities, and behavioral health disabilities. Our leadership team works collectively to develop and implement the agency’s strategic growth plan through yearly goals and objectives that keep our staff grounded and focused on the work we do each day at BAMSI. Our team is committed to leading our expanding organization throughout the Commonwealth as we work to improve the quality of people’s lives and their sense of self-worth.

Our Board of Directors consists of a dynamic team of diverse individuals with a variety of professional and personal assets. From attorneys to civic-minded volunteers, BAMSI Directors work tirelessly to guide and direct the organization, serving as the fiscal and legal conscience for the 25,000 persons served each year by BAMSI.  BAMSI, a certified minority non-profit organization depends upon the unique talents of its’ Board of Directors.

If you would like more information about joining our Board of Directors, please contact the Board Liaison, Marilyn Marrese at mmarrese@bamsi.org.

  • David Offutt President

    David Offutt

    David Offutt joined BAMSI’s Board of Directors in 2016.  He is a real estate developer working with Century 21 Real Estate serving interested buyers and sellers across the Commonwealth.  Mr. Offutt has worked in the real estate business for more than two decades. Much of David’s focuses is in the Plymouth County, he enjoys the opportunity to make a significant contribution to the areas that Brockton serves. Additionally, David serves on the Board of Trustees at Signature Health Care and The Old Colony YMCA.

  • Maurice Hancock Vice President

    Maurice Hancock
    Vice President

    Maurice “Moe” Hancock has been a member of the BAMSI Board of Directors for many years. Mr. Hancock is a retired electrician from the Brockton Fire Department.  He has served on many other boards including: Massachusetts Association of School Committees E-board; Massachusetts Interscholastic Athletic Association; and the Brockton School Committee. He also currently volunteers on the Board of Directors for Edwina Martin House. Mr. Hancock is a member of the Executive/Finance Committee.

  • Reverend Albert Whitaker Treasurer

    Reverend Albert Whitaker

    Rev. Albert Whitaker currently serves as a voting member of the New England Comparative Effectiveness Public Advisory Council (NECEPAC) of the Institute of Clinical and Economic Review (ICER) He has worked diligently with various local and national stakeholders in addressing social determinants of health, utilizing data to improve health outcomes, and promoting a national culture of health.  Rev. Whitaker is fluent in Spanish and served as a Peace Corp Volunteer in South America. He holds a master’s in urban ministry from Gordon Conwell Theological Seminary and is currently working on his second master’s degree in public health. Rev. Whitaker also serves on the Ministerial Team at St. Mark Congregational Church in Roxbury, MA.

  • Dr. Ed Cabellon Clerk

    Dr. Ed Cabellon

    Dr. Ed Cabellon joined BAMSI’s Board of Directors in December of 2018 and was selected as the Board’s Clerk in the fall of 2019. In his Clerk role, he chairs the Board Affairs Committee and serves on the Board’s Executive Committee.

    Professionally, Dr. Cabellon is an experienced, innovative, and accomplished higher education administrator in Enrollment Management and Student Services. He is a consultant and speaker in organizational change, leadership development, and digital technology and teaches in the graduate program for higher education administration at Bridgewater State University and online for Caldwell University. He earned his doctorate in Educational Leadership from Johnson and Wales University, his masters in Educational Leadership from Central Connecticut State University, and his bachelors in Communication from Stonehill College.

    Personally, Ed and his family have lived in Brockton since 2004, with his wife teaching in Brockton Public Schools since 1996 and his daughters attending Brockton Public Schools. He also has served as a girls Brockton Youth Soccer Coach for both Intramural and Travel teams. He appreciates the opportunity to deepen his service to the Brockton community through this important leadership role.

  • Babacar Diop

    Babacar Diop

    As a Senior Director at Hebrew SeniorLife for the past six years, Babacar has participated in the development of its economic strategy, ensured its budget monitoring and anticipated events to achieve and maintain its competitiveness. His comprehensive knowledge and “hands-on” experience included leading strategic growth, enhancing organizational performance, achieving development goals in challenging environments and building strong teams while maintaining high client satisfaction and adhering to regulatory conditions. He is insightful in his approach and also has the sensitivity and influencing skills to gain buy-in from different stakeholders. His portfolio includes acute care, public health, and geriatric management; he is well versed in the clinical, fiscal and regulatory arenas with a background in Clinical Science and an MBA in Healthcare Management. Babacar is committed to building sustainable communities and environments where patients and residents’ experience and clinical outcomes are enriched.


  • Pamerson Ifill

    Pamerson Ifill
  • Joanne Thomas

    Joanne Thomas

    Joanne Thomas joined the BAMSI Board of Directors in 2010. She is the former Director of Nursing at Signature Healthcare Brockton Hospital. Ms. Thomas has a master’s degree in nursing administration and comes to BAMSI with many years of nursing administration and emergency nursing experience. Ms. Thomas is Clerk of the Board of Directors, serves on the Medical Risk Advisory Committee and is a member of the Board Executive Committee.

  • Jessica Nisenbaum

    Jessica Nisenbaum

    Jessica is currently the Chief People Officer at Rhapsody, a leading healthcare data interoperability company, responsible for the company’s people strategy and HR operations globally.  She brings more than 20 years of experience in HR and business, bringing organizations through various stages of growth and transformation, predominantly in the healthcare industry.  She is an experienced business partner to executives in navigating change and driving business outcomes.  Jessica holds a Bachelors Degree in Psychology, a graduate certificate in Executive Leadership and has completed coursework toward a Masters Degree in Education.  She is also an experienced and trained Mediator.  She has served on the Board of a small educational non-profit agency, is spirited about volunteering her time and talent, and regularly seeks opportunities to help individuals reach personal and professional goals.

Our Executive Management Team includes professionals from a variety of disciplines who share a common vision. We’re determined advocates in continuing to change perceptions about children, adults and families impacted by mental illness, developmental disabilities, and behavioral health disabilities. We believe that effective leadership provides a unique opportunity to change old patterns and make them new.

BAMSI takes pride in its commitment to management excellence. It takes a well-run organization to deliver and sustain high-quality services. Our management team is highly disciplined, highly focused, and highly regarded, earning widespread respect and the trust of our funders.

BAMSI is also proud of its reputation among industry leaders. Our senior managers are valued contributors to policy-making on critical issues that providers, persons served, and their families face. We bring a consistent focus on evidence-based practices, and we are dedicated to practicing innovation to help the Commonwealth solve social problems while delivering the best economic value for the services we provide.

BAMSI is relentless in its dedication to changing society’s traditional views of its citizens with mental illness, developmental disabilities, and behavioral health disabilities.

  • Anthony Simonelli Emeritus

    Anthony Simonelli

    Anthony Simonelli joined BAMSI in 1977 as an Occupational Therapist working with senior citizens.  Following that successful experience, he was selected as a Program Director in 1978.  Mr. Simonelli’s outstanding effort resulted in him being selected as the new BAMSI Executive Director in 1984, Chief Executive Officer in 1998, and in 2016 was named President and Chief Executive Officer.  Mr. Simonelli is the principal architect of the agency’s operation, which has grown in budget from $2 million in 1984 to the current budget of $95 million.  Currently he is responsible for overseeing fiscal, contractual, business, and legal operations, and is the chief liaison to the BAMSI Board of Directors.

    Mr. Simonelli has been appointed to the Statewide Advisory Board for the Women, Infants, and Children (WIC) Program, has previously served as a Board Member for the Social Work Program at Bridgewater State College, and was a Trustee at Massasoit Community College.  He was also a former Health Care Consultant to long-term care facilities.

    Mr. Simonelli is a graduate of Boston University with a concentration in Occupational Therapy.  He received an Executive Certificate in Management and Leadership at the MIT Sloan School of Management.

  • Peter Evers President and CEO

    Peter Evers
    President and CEO
  • Marian O’Neil Chief Financial Officer

    Marian O’Neil
    Chief Financial Officer

    Marian O’Neil joined BAMSI as the Chief Financial Officer in 2015. Marian has over 14 years of financial management experience. The majority of these years have been in the defense industry as a Senior Program Analyst and Senior Financial Analyst with the Missile Defense Agency and Division Business Manager at Massachusetts Institute of Technology’s Lincoln Lab. She also has finance experience in the legal field as Manager of Financial Planning and Analysis with the law firm of Ropes and Gray as well as having been a high school business teacher.

    Marian has always been an active volunteer in her community and strongly believes in the importance of giving back and compassion for others. She was awarded Volunteer of the Year in 2014 for her work with ABCD (Action Boston Community Development) North End/West End in Boston and is current member of their Advisory Board. Other prior volunteer involvement includes Massachusetts General Hospital Radiology Center and Rein and Shine Therapeutic Horseback Riding in Charleston, South Carolina.

    Marian earned a Bachelors of Business Administration from Radford University, Virginia; completed an International Residency, Business in Europe and Business Certificate from Cambridge University, Fitzwilliam College in Cambridge, England, and received her Master’s of Business Administration from George Mason University in Virginia.

  • Margot Carleton Chief Information Officer

    Margot Carleton
    Chief Information Officer
    Margot Carleton joined the BAMSI administrative team in 2011 and is the Chief Information Officer.   In this position, she oversees the Quality and Improvement and IT teams supporting the compliance, risk and information technology needs for the agency.  During her time at BAMSI, Margot has facilitated the selection and implementation of several tools to enhance the services BAMSI provides at more than 130 program locations.

    Prior to joining BAMSI, she spent 25 years working at Medtronic (previously known as Kendall, Tyco Healthcare, Covidien), a $10B medical device manufacturer. As the Vice President of Information Services at Covidien, she was responsible for applications and acquisition integrations for several lines of business.

    Ms. Carleton graduated from Rensselaer Polytechnic Institute with a degree in Management Systems. She is a member of the Society of Information Management (SIM) and completed a Regional Leadership Forum in 2009 where and she is a facilitator for the Boston RLF Forum since 2016.
  • Lucas Carvalho Executive Vice President

    Lucas Carvalho
    Executive Vice President

    Lucas Carvalho joined BAMSI in 2004 and is the Vice President of Corporate Resources.  In his current position, Lucas oversees housing development, property acquisition, and facilities asset management of new and existing properties, including lease administration, construction, facilities maintenance and safety. During his tenure at BAMSI, Mr. Carvalho has spearheaded the physical plant growth from 50 to more than 120 residential and commercial properties.

    Prior to joining BAMSI, Mr. Carvalho held management positions in the telecommunications where he assisted the establishment of business locations and property/office acquisition throughout the United States. Lucas also supported a women’s shelter in safe and secure property acquisition.

    Mr. Carvalho earned his Bachelor of Science degree in operations management from Boston College.

  • Beverly Williams Executive Vice President

    Beverly Williams
    Executive Vice President

    Beverly Williams joined BAMSI in 1999 and has more than 20 years of clinical and leadership experience. She has served in clinical leadership positions at New England Home for Little Wanderers and Dimock Community Health Center. Ms. Williams has provided clinical and managerial consultations to several agencies including; the Boston Public Health Commission, the Center for Health and Development, Hildebrand Services, Inc., Massachusetts Association for Family Based Service Providers, the Children’s AIDS Program, and Head Start, Inc.

    Ms. Williams is a member of the American Association of Marriage and Family Therapists and the Massachusetts Association of Marriage and Family Therapists. She is a trainer of the Child and Adolescent Functional Assessment Score. Ms. Williams is a certified Trauma First Responder. Ms. Williams has extensive experience developing collaborative relationships and contracts with various community providers and state departments.

    Beverly earned her Master’s Degree in Education, Marriage and Family Therapy from the University of Massachusetts and a Master’s of Management from Cambridge College.

  • Aisha Barlatier-Bonny Vice President of Child, Family, & Community Services

    Aisha Barlatier-Bonny
    Vice President of Child, Family, & Community Services

    Aisha Bonny joined BAMSI in 2004 as a Program Manager of Family Based Services a Department of Children and Families. Aisha has 18 years of leadership experience, 14 in a clinical setting. She has worked in the private non-profit sector since 1996, when she began her career as a Case Manager in a women’s shelter located in Stamford, Connecticut. Over the course of her career, Aisha has worked with children, adolescents, adults, families, and the elderly to address a variety of mental health and community health challenges.

    As a member of the Brockton community, Aisha has served on the boards of the South Shore Haitians United for Progress (SHUP), the Haitian Organization for the Advancement of Petit-Guoave (HOAP), Bridgewater State University’s Social Work Advisory Board, and was Chair of the Board of Directors at St. Joseph Manor until June 2017. Currently, Aisha is a Board of Directors member for Covenant Health Systems located in Tewksbury, Massachusetts.

    Aisha earned her Bachelor’s degree in Social Work at Sacred Heart University in Connecticut and her Master’s degree at Bridgewater State University. In 2011, Aisha was named a “Brockton Woman of the Year” for her work at BAMSI and in Haitian communities in Massachusetts and abroad.

  • Teresa Belsan Vice President of Operations

    Teresa Belsan
    Vice President of Operations

    Teresa Belsan is the Vice President of Operations within the Adult Services Division of BAMSI. In this role, she oversees Adult Community Clinical Services, Adult Day Treatment Center, Respite Services, the Coordinated Care Network, the Massachusetts Care Coordination Network, HIV Services and C.O.P.E. (Community Outreach, Prevention and Education Center) Center, Clubhouse, Elder Services and the Recovery Learning Community.

    As a member of the Executive and Strategic Planning Team, Teresa is an integral part of the clinical and administrative programs for individuals with mental and behavioral health issues..

    Prior to joining BAMSI in 2008, Teresa was the Program Director for the Program Assertive Community Treatment (PACT) Team where she was responsible for overseeing 80 high risk individuals living in the community and supervised a 12-member team of peer specialists, nurses, psychiatrists, vocational specialists, housing specialists, clinicians and social workers.

    As Clinical Coordinator for Sweetser in Brunswick, ME, Teresa was part of the Community Support Program and Assertive Community Treatment (ACT) Team as well as a program director.

    Teresa holds a Master of Science in Clinical Counseling from the University of Southern Maine where she also worked for a decade as an Admissions and Advising Counselor.

  • Jill Conlon Executive Vice President

    Jill Conlon
    Executive Vice President

    Jill Conlon, Vice President of Adult Services, has been a leader within BAMSI’s Adult Services Division since 2010, where she focused on improving systems and the sustainability of program operations for 85 day and residential programs throughout Massachusetts.

    Beginning as Director of Day and Residential Programs, Jill manages a large team of individuals who support people with brain injury and/or developmental disabilities. With increasing levels of responsibility, Jill assumed the role of Senior Director of Adult Services where she created an onboarding program for leaders and direct care employees as well as several other strategic initiatives to improve the quality of life and work for persons served and employees.

    Prior to joining BAMSI, Jill was Vice President of Programs for MYTURN, a non-profit dedicated to assisting at risk and underprivileged youth in achieving their educational and personal goals. Working in conjunction with Brockton High School where she also served as Coordinator of Collegiate Services and provided career services, Jill held various roles working on curriculums and career paths for students from under-served neighborhoods. She was also the Employment Consultant/Case Manager for Columbia Metrowest Human Services in Ashland, MA, where she conducted direct care services for mentally challenged adults.

    Jill is a graduate of the University of Massachusetts at Boston with a Masters in Human Services and a concentration in policy and administration. She received her undergraduate degree in Sociology from St. Anselm College with a concentration in human relations and work.

  • Kelly Navarro Vice President of Human Resources

    Kelly Navarro
    Vice President of Human Resources

    Kelly Navarro joined BAMSI in 2018 as our Vice President of Human Resources. Prior to joining BAMSI, Kelly served as the Chief Human Resource Officer for the State of Delaware for the past five years.  During her tenure, she was responsible for overseeing the overall human resource operational strategy, including: talent acquisition, as well as employee retention, training, performance, and compensation and fringe benefit initiatives.  In addition Kelly also served as an internal coach, and a group facilitator to support staff throughout State Government in Delaware.

    Kelly is an innovative and solution-oriented professional with proven expertise in Human Resources.  Throughout her career in state government in Delaware, Kelly has been a highly respected leader with a strong understanding of implementing a customer service approach to human resources.

    Kelly earned her Bachelor’s degree at Wilmington University, her Master’s at Widener University, and her Juris Doctor at Widener University School of Law.

The BAMSI Advisory Board is comprised of a cross-representation of persons served throughout the agency. Advisory Board members provide communication, feedback, and advocacy to the agency. Messages from the Advisory Board:

It’s a great thing.
We try to help.
We take action.
We advocate for people with disabilities.
We spread awareness.
I know how others feel because I’m in their shoes.

Get Involved

At BAMSI, we depend upon the generosity of others to help us carry out our work that benefits so many individuals and families.