Sinai Chicago Executive and Leadership Team

June, 2026

Leadership Overview

Sinai Chicago has 6 executives leading key functions including revenue, finance, community health, medical enterprise, and urban health.

Driven by a commitment to community well-being, Sinai Chicago operates as a vital not-for-profit health system, delivering comprehensive care across seven member organizations and impacting over 100,000 emergency department visits annually.

Leadership Roles at Sinai Chicago

  • Vice President, Deputy Chief Financial Officer - Dimas Ortega
  • Executive Vice President & Chief Financial Officer - Ekerete Akpan
  • President of Sinai Community Institute - Debra Wesley
  • President, The Medical & Ambulatory Enterprise - Christopher Sprowl
  • President, Sinai Urban Health Institute - Helen Margellos-Anast
  • Chief Revenue Officer - Thomasina Wilkins
  • Dimas Ortega - Vice President, Deputy Chief Financial Officer

    Dimas Ortega, the Vice President, Deputy Chief Financial Officer at Sinai Chicago, supports the financial operations and strategic planning of the health system. Working closely with the Chief Financial Officer, Dimas Ortega oversees budgeting, financial forecasting, and resource allocation across Sinai Chicago's diverse network of hospitals and institutes. This role is critical in ensuring fiscal responsibility and the efficient deployment of capital to support patient care initiatives and infrastructure development. The Deputy Chief Financial Officer's responsibilities include managing financial reporting, compliance, and risk management, safeguarding the organization's assets and ensuring adherence to regulatory standards. By providing insightful financial analysis, Dimas Ortega contributes to informed decision-making, enabling Sinai Chicago to navigate complex financial landscapes and maintain its commitment to serving the Chicago metropolitan area.

    Ekerete Akpan - Executive Vice President & Chief Financial Officer

    Ekerete Akpan, the Executive Vice President & Chief Financial Officer at Sinai Chicago, directs the comprehensive financial strategy and management of the health system. Overseeing all aspects of financial planning, accounting, treasury, and investments, the Chief Financial Officer ensures the fiscal integrity and long-term viability of Sinai Chicago's operations. This executive leadership role involves managing the financial performance of seven distinct member organizations, including Mount Sinai Hospital and Holy Cross Hospital, and supporting their mission-driven objectives. Ekerete Akpan's strategic oversight extends to capital allocation, debt management, and the development of financial models that support growth and operational excellence. By driving financial discipline and innovation, the Chief Financial Officer enables Sinai Chicago to expand its reach and enhance the quality of care provided to the Chicago community.

    Debra Wesley - President of Sinai Community Institute

    Debra Wesley, the President of Sinai Community Institute at Sinai Chicago, leads the organization's commitment to community health and well-being. Overseeing programs focused on social determinants of health, community engagement, and access to care, Debra Wesley drives initiatives that address the unique needs of Chicago residents. The President of Sinai Community Institute works to foster partnerships with local organizations and government agencies to extend the reach of health services beyond traditional clinical settings. This leadership role is pivotal in developing and implementing strategies that improve health outcomes and reduce health disparities within underserved populations. By championing community-based solutions, Debra Wesley ensures Sinai Chicago remains a responsive and integral resource for the communities it serves, promoting holistic health and empowerment.

    Christopher Sprowl - President, The Medical & Ambulatory Enterprise

    Christopher Sprowl, the President, The Medical & Ambulatory Enterprise at Sinai Chicago, spearheads the strategic direction and operational management of the health system's medical and outpatient services. Overseeing Sinai Medical Group and Sinai Children's Hospital, Christopher Sprowl ensures the delivery of integrated, high-quality patient care across a broad spectrum of services. This executive leadership position involves optimizing clinical workflows, enhancing patient access, and driving innovation in ambulatory care settings. The President, The Medical & Ambulatory Enterprise focuses on physician alignment, service line development, and the expansion of outpatient facilities to meet the evolving healthcare needs of the Chicago region. By fostering collaboration and operational excellence, Christopher Sprowl strengthens Sinai Chicago's capacity to provide comprehensive and accessible healthcare solutions.

    Helen Margellos-Anast - President, Sinai Urban Health Institute

    Helen Margellos-Anast, the President, Sinai Urban Health Institute at Sinai Chicago, directs the institute's mission to improve the health and well-being of urban populations. Overseeing research, community outreach, and public health initiatives, Helen Margellos-Anast drives evidence-based strategies to address critical health challenges within Chicago. This leadership role involves developing programs that promote health equity, prevent chronic diseases, and enhance access to care for diverse communities. The President, Sinai Urban Health Institute collaborates with community stakeholders, policymakers, and healthcare providers to implement impactful interventions. By leveraging data and community insights, Helen Margellos-Anast advances the institute's role as a vital resource for public health advancement and community health improvement across the metropolitan area.
    Helen Margellos-Anast

    Thomasina Wilkins - Chief Revenue Officer

    Thomasina Wilkins, the Chief Revenue Officer at Sinai Chicago, directs all revenue cycle management and financial performance strategies. Overseeing patient billing, claims processing, and payer relations, the Chief Revenue Officer ensures maximum reimbursement and operational efficiency across the health system's seven member organizations. This leadership position involves optimizing revenue streams to support the delivery of high-quality patient care and the expansion of critical health services. By analyzing financial data and implementing innovative revenue enhancement programs, Thomasina Wilkins drives financial sustainability. The Chief Revenue Officer's focus extends to strategic partnerships and contract negotiations, securing favorable terms with insurance providers to bolster the organization's financial health and its capacity to serve the Chicago community.

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    Frequently Asked Questions Regarding Sinai Chicago Top Executives and Leadership Team

    Who leads Sinai Chicago?
    Sinai Chicago is led by Dimas Ortega (Vice President, Deputy Chief Financial Officer), along with executives such as Ekerete Akpan (Executive Vice President & Chief Financial Officer) and Debra Wesley (President of Sinai Community Institute).
    Who is part of Sinai Chicago’s executive team?
    The executive team of Sinai Chicago includes leaders such as Dimas Ortega (Vice President, Deputy Chief Financial Officer), Ekerete Akpan (Executive Vice President & Chief Financial Officer), Debra Wesley (President of Sinai Community Institute) and other senior executives.
    How many executives does Sinai Chicago have?
    Sinai Chicago has 6 executives leading key business areas.
    What roles are included in Sinai Chicago’s leadership team?
    The leadership team of Sinai Chicago includes roles such as Vice President, Deputy Chief Financial Officer, Executive Vice President & Chief Financial Officer, President of Sinai Community Institute, President, The Medical & Ambulatory Enterprise, President, Sinai Urban Health Institute.