John Herhalt
Chair
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John retired from KPMG LLP several years ago where he held several senior leadership positions and has over 44 years of experience in the areas of audit, accounting, management consulting, risk consulting, senior management and Board governance.
John continues to serve as a Board Director and provides part-time management consulting services to a few clients. He has served as a Board Director on several not-for-profit organizations and, at this time, continues to serve as a Director on the Board of Easter Seals Ontario where he is the Past Chair. John is a graduate of the University of Windsor (B. Comm., B.A. Economics) and is a member of the of the Chartered Professional Accountants of Ontario (FCPA, FCA). He lives in Kingsville with his wife Anna. Anna and John have one son and one granddaughter.
Ann Diab
Vice Chair
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Ann Diab joined the JMCC Finance Committee in October 2021 and has served on the Board of Directors since the same year. She brings more than 19 years of experience in the banking sector and currently works as a Group Consultant with RBC Group Advantage, supporting businesses and their employees across Southwestern Ontario with retirement savings strategies and financial wellness solutions.
Ann is known for her collaborative, client-centered approach and her passion for empowering others. She works closely with a team of specialists to deliver personalized service and exclusive offerings from RBC Royal Bank. In addition to her expertise in financial services, she is a skilled leader and mentor, helping to coach high-performing teams within the industry.
Beyond her professional work, Ann is actively involved in community initiatives that support disadvantaged women and individuals with intellectual disabilities. Her dedication to volunteerism and advocacy has earned her several awards and recognitions.
Terry Johnson
Past Chair
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Terry previously served on the Quality Committee since October 2021. Terry retired from Windsor Essex Children’s Aid in March 2019 following 37 years in child welfare; both in providing front line services as well as in senior leadership roles. Terry is well versed in the needs of children and families and has worked collaboratively with many community organizations. Presently Terry is a council member for ProsperUs and facilitates a Community Action Network group of neighbourhood residents discussing the needs of children 0 to 6 years of age. Terry is also a member of the Board of Directors for the Windsor Working with Immigrant Women. Terry has a Masters of Social Work from the University of Windsor.
Jean Piccinato
Treasurer and Chair, Finance Committee
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Jean is a seasoned executive with a strong background in healthcare leadership, governance, and community service. She is Past Chair of our Governance Committee and currently Chair of our Finance Committee. Jean currently serves on the St. Clair College Board of Governors as Past Chair and is also a member of the St. Clair College Foundation Board. Throughout her career, Jean has held senior roles overseeing operations, policy development, strategic planning, financial management, and human resources.
In addition to her professional accomplishments, Jean has volunteered extensively with several nonprofit organizations, contributing her expertise to finance, quality and risk, executive, and recruitment committees. Her dedication to strong governance and her commitment to community service make her a valuable asset to the John McGivney Children’s Centre Board of Directors.
Matthew Martinuzzi
Board Member
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Matthew Martinuzzi is a Registered Social Worker with over 15 years of experience in the fields of mental health, social services, and community advocacy. A proud alumnus of the John McGivney Children’s Centre, Matthew brings both professional expertise and a deeply personal connection to the organization. As a former JMCC client from 1990 to 2006, he credits the Centre’s services—ranging from physiotherapy and occupational therapy to school-based support—with helping him develop the skills and confidence to thrive.
In addition to his professional accomplishments, Matthew previously served as a spokesperson for JMCC’s Capital Campaign, supporting the very building the Centre now calls home. Today, he is honoured to give back by serving on the Board of Directors and contributing to the Centre’s continued impact on children and families in our community.
Rashoo Brar Chawla
Chair, Governance Committee
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Rashoo Brar Chawla brings over two decades of experience in the healthcare sector, with a strong background in system leadership, program planning, and health equity. Currently serving as Vice President of Operations at Erie Shores HealthCare, she has launched critical programs including a pediatric seasonal clinic and a new mental health initiative in partnership with CMHA-Windsor Essex. Rashoo’s previous roles include advancing mental health and addictions services across rural and Indigenous communities, as well as leading youth wellness partnerships and population health strategies.
A Certified Health Executive with a passion for integrated care, Rashoo is known for her collaborative leadership style and commitment to reducing health disparities.
Rashoo also sits on our Community Relations & Communications Committee.
John-Marc Vachon
Chair, Community Relations & Communications Committee
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John-Marc is a digital marketing expert and graphic designer with over 16 years’ experience. He is the Director of Programs & Marketing for WEtech Alliance, a non-profit organization that helps innovation and tech-enabled entrepreneurs and businesses in Windsor-Essex and Chatham-Kent start, grow and scale.
John-Marc has been on our Community Relations and Communications Committee since May 2020, starting as Vice-Chair, and is now Chair of this committee. He also sits on our Finance Committee.
Michelle Brosseau
Board Member
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Michelle Brosseau brings more than 40 years of experience in healthcare, advocacy and labour relations, along with a personal connection to the John McGivney Children’s Centre as the parent of a child with Cerebral Palsy. She worked for 20 years as a Registered Nurse at Hotel Dieu Hospital, followed by 22 years as a Labour Relations Officer with the Ontario Nurses’ Association, where she supported healthcare professionals through negotiations, policy interpretation, conflict resolution, education and strategic discussions. Michelle’s combined experience in frontline care, organizational governance and lived family experience offers a valuable perspective in support of JMCC’s mission and ongoing impact in the community.
Michelle sits on both our Governance Committee and Quality Committee.
Shantelle MacLean
Board Member
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Shantelle MacLean joined the Board of Directors in September 2024 and currently sits on the CRC and the Governance Committees. She is a leader with over a decade of experience in the educational and healthcare sectors with a strong focus on operations and facility management. She currently serves as the Coordinator of Operations for Facility Services at the Greater Essex County District School Board, where she has been dedicated to enhancing organizational efficiency and ensuring optimal learning environments. Her academic background includes a Diploma in Child and Youth Care from St. Clair College, a Bachelor of Education from the University of Windsor, and a Diploma in School Board Administration from the University of Guelph.
Christen Abraham
Chair, Quality Committee
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Christen Abraham joined the John McGivney Children’s Centre Board of Directors in 2024 and currently serves on the Quality Committee and the Community Relations & Communications Committee. She is a Six Sigma Black Belt Professional and holds an MBA in Health Systems Leadership, with extensive experience in clinical coordination and healthcare system improvement.
Christen has worked with healthcare organizations of varying sizes, including the Windsor Family Health Team and the Windsor-Essex Neighbourhood Ambassadors Program. She currently serves as the Mobile Medical Clinic Coordinator for Mobile Medical Support (MMS) through Erie Shores HealthCare, where she leads initiatives to provide essential care to marginalized and high-priority populations across Southwestern Ontario.
In addition, Christen is the Co-Founder and Community Outreach Coordinator at Abraham Orthodontics. Her work is grounded in a strong commitment to health equity, and she develops and leads outreach programs that enhance access to care and promote community wellness. She is also an active health researcher, with published work examining the role of social determinants in health outcomes and the impact of community-based interventions on population health.
In addition to her professional and leadership roles, Christen is an active researcher, with published work exploring the influence of social factors on health outcomes and the effectiveness of community-based interventions in healthcare and psychology.
to come
Board Member
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to come
Board Member
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Board Meeting Dates (2026–2027)
Meetings of the Board of Directors are typically held 6:00–9:00 p.m. on the last Tuesday of the month at the Centre, unless otherwise noted. Meetings are open to the public. Please RSVP to [email protected].