Sunnybrook Health Sciences Centre Executive and Leadership Team

May, 2026

Leadership Overview

Sunnybrook Health Sciences Centre has 9 executives leading key functions including finance, strategy, human resources, and digital health.

Driven by a commitment to patient care and innovation, Sunnybrook Health Sciences Centre provides comprehensive medical and healthcare services, alongside robust medical research and educational programs, impacting healthcare delivery across Canada.

Leadership Roles at Sunnybrook Health Sciences Centre

  • Chief Financial Officer - Betty Horton
  • Vice President, Finance & Chief Financial Officer - Allison Welch
  • Vice President, Corporate Support & Chief Financial Officer - Sarah Chow
  • Co-chair President's Task Force To Accelerate Clinical Trials (PACT) - Wesam Abuzaiter
  • Founding Chair, President's Green Task Force - Michael Lithgow
  • Services Director, Strategy & Research & To Vpri Chief of Staff - Heather Soberman
  • Chief Human Resources Officer - Erin Miller
  • Vice President, Digital Health & Chief Information Officer - Robert Lee
  • Vice President, Corporate Strategy Development & Chief Information Officer - Sam Marafioti
  • Betty Horton - Chief Financial Officer

    Betty Horton, the Chief Financial Officer at Sunnybrook Health Sciences Centre, directs all financial operations and fiscal strategy. Horton manages the institution's budget, financial planning, and resource allocation, ensuring fiscal responsibility across all departments. This leadership role involves optimizing financial performance and supporting the delivery of advanced medical and healthcare services, including those for heart and stroke, cancer, trauma, and women and baby care. Horton's oversight extends to financial reporting and compliance, safeguarding the organization's economic health. By meticulously managing financial resources, Betty Horton directly supports Sunnybrook's mission of providing exceptional patient care and advancing medical research and education.

    Allison Welch - Vice President, Finance & Chief Financial Officer

    Allison Welch, the Vice President, Finance & Chief Financial Officer at Sunnybrook Health Sciences Centre, oversees the financial health and strategic fiscal planning of the organization. Welch manages all aspects of financial management, including budgeting, forecasting, and financial analysis, to support the delivery of comprehensive medical and healthcare services. This role is pivotal in ensuring the efficient allocation of resources for critical areas such as cancer, trauma, and women and baby care. Welch's leadership ensures adherence to financial regulations and drives initiatives for financial sustainability and growth. By providing expert financial guidance, Allison Welch directly supports Sunnybrook's commitment to medical research, education, and exceptional patient outcomes.

    Sarah Chow - Vice President, Corporate Support & Chief Financial Officer

    Sarah Chow, the Vice President, Corporate Support & Chief Financial Officer at Sunnybrook Health Sciences Centre, directs financial operations and corporate support functions. Chow is responsible for managing the organization's financial resources, ensuring fiscal integrity, and overseeing administrative services that enable seamless healthcare delivery. This leadership position involves strategic financial planning and resource management to support specialized services like heart and stroke care, cancer treatment, and trauma services. Chow's purview includes optimizing operational efficiencies and financial performance across the institution. By integrating financial oversight with corporate support, Sarah Chow plays a vital role in advancing Sunnybrook's mission of providing cutting-edge medical research and education.

    Wesam Abuzaiter - Co-chair President's Task Force To Accelerate Clinical Trials (PACT)

    Wesam Abuzaiter, the Co-chair President's Task Force To Accelerate Clinical Trials (PACT) at Sunnybrook Health Sciences Centre, leads initiatives focused on expediting the clinical trial process. Abuzaiter works to streamline research protocols and enhance collaboration among research teams, aiming to bring new medical treatments and therapies to patients more rapidly. This role is crucial for advancing Sunnybrook's medical research capabilities, particularly in critical areas such as cancer and heart disease. Abuzaiter's efforts contribute to fostering an environment where innovative research can flourish and translate into improved patient outcomes. By driving the acceleration of clinical trials, Wesam Abuzaiter directly supports Sunnybrook's mission to lead in medical discovery and patient care.

    Michael Lithgow - Founding Chair, President's Green Task Force

    Michael Lithgow, the Founding Chair, President's Green Task Force at Sunnybrook Health Sciences Centre, spearheads environmental sustainability initiatives across the organization. Lithgow directs efforts to reduce the institution's ecological footprint, promoting sustainable practices in operations, energy consumption, and waste management. This leadership role is vital for integrating environmental responsibility into Sunnybrook's core mission of providing healthcare and conducting research. Lithgow's work focuses on developing and implementing strategies that align with green principles, ensuring a healthier environment for patients and the community. By championing sustainability, Michael Lithgow contributes to Sunnybrook's commitment to long-term well-being and responsible corporate citizenship.
    Michael Lithgow

    Heather Soberman - Services Director, Strategy & Research & To Vpri Chief of Staff

    Heather Soberman, the Services Director, Strategy & Research & To Vpri Chief of Staff at Sunnybrook Health Sciences Centre, spearheads strategic initiatives and research coordination. Soberman guides the development and implementation of long-term strategies, aligning research endeavors with the institution's clinical and educational objectives. This critical position involves enhancing the integration of research findings into patient care protocols and educational programs. Soberman's responsibilities include fostering an environment conducive to groundbreaking medical research and ensuring seamless collaboration between research teams and clinical services. By driving strategic planning and research oversight, Heather Soberman significantly contributes to Sunnybrook's reputation as a leader in medical innovation and healthcare delivery.

    Erin Miller - Chief Human Resources Officer

    Erin Miller, the Chief Human Resources Officer at Sunnybrook Health Sciences Centre, leads all human capital strategies and organizational development initiatives. Miller oversees talent acquisition, employee relations, compensation, and benefits, ensuring a skilled and motivated workforce to support the institution's complex medical and healthcare services. This role is crucial for fostering a positive and productive work environment that underpins Sunnybrook's commitment to patient care, medical research, and education. Miller's strategic direction focuses on workforce planning, professional development, and maintaining compliance with labor laws. By championing human resources best practices, Erin Miller directly contributes to the operational excellence and sustained success of Sunnybrook Health Sciences Centre.
    Erin Miller

    Robert Lee - Vice President, Digital Health & Chief Information Officer

    Robert Lee, the Vice President, Digital Health & Chief Information Officer at Sunnybrook Health Sciences Centre, drives the organization's digital transformation and information technology strategy. Lee oversees the development and implementation of innovative digital health solutions, enhancing patient care delivery, operational efficiency, and medical research capabilities. This leadership role involves managing IT infrastructure, cybersecurity, and data analytics to support specialized services in areas like cancer, trauma, and women and baby care. Lee's focus is on leveraging technology to improve patient outcomes and streamline healthcare processes. By advancing digital health initiatives, Robert Lee significantly contributes to Sunnybrook's position at the forefront of medical innovation and technological integration.
    Robert Lee

    Sam Marafioti - Vice President, Corporate Strategy Development & Chief Information Officer

    Sam Marafioti, the Vice President, Corporate Strategy Development & Chief Information Officer at Sunnybrook Health Sciences Centre, guides the strategic direction of information technology and corporate development. Marafioti is responsible for aligning technology roadmaps with the institution's overarching strategic goals, ensuring that IT infrastructure effectively supports medical services, research, and education. This dual role involves identifying opportunities for strategic growth and innovation, particularly in areas like digital health and data management. Marafioti's leadership ensures that technology investments enhance patient care, optimize operational workflows, and support groundbreaking medical research. By integrating strategic planning with IT oversight, Sam Marafioti drives Sunnybrook's advancement in healthcare technology and institutional development.

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    Frequently Asked Questions Regarding Sunnybrook Health Sciences Centre Top Executives and Leadership Team

    Who leads Sunnybrook Health Sciences Centre?
    Sunnybrook Health Sciences Centre is led by Betty Horton (Chief Financial Officer), along with executives such as Allison Welch (Vice President, Finance & Chief Financial Officer) and Sarah Chow (Vice President, Corporate Support & Chief Financial Officer).
    Who is part of Sunnybrook Health Sciences Centre’s executive team?
    The executive team of Sunnybrook Health Sciences Centre includes leaders such as Betty Horton (Chief Financial Officer), Allison Welch (Vice President, Finance & Chief Financial Officer), Sarah Chow (Vice President, Corporate Support & Chief Financial Officer) and other senior executives.
    How many executives does Sunnybrook Health Sciences Centre have?
    Sunnybrook Health Sciences Centre has 9 executives leading key business areas.
    What roles are included in Sunnybrook Health Sciences Centre’s leadership team?
    The leadership team of Sunnybrook Health Sciences Centre includes roles such as Chief Financial Officer, Vice President, Finance & Chief Financial Officer, Vice President, Corporate Support & Chief Financial Officer, Co-chair President's Task Force To Accelerate Clinical Trials (PACT), Founding Chair, President's Green Task Force.