Sinai Chicago Executive and Leadership Team

July, 2026

Leadership Overview

Sinai Chicago has 5 executives leading key functions including revenue, finance, community health, 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 patient 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, 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 Executive Vice President & Chief Financial Officer in managing the organization's financial operations. Overseeing key financial planning, budgeting, and forecasting processes, the Deputy Chief Financial Officer ensures fiscal discipline across Mount Sinai Hospital, Holy Cross Hospital, and other member entities. This role involves detailed analysis of financial statements and the development of strategies to improve operational efficiency and cost containment. By partnering with department heads, Dimas Ortega identifies opportunities for financial optimization and resource allocation. Ultimately, Ortega contributes to the long-term financial stability and strategic growth of the Sinai Chicago health system.

    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 operations for the entire health system. Overseeing all aspects of financial management, including accounting, treasury, budgeting, and financial planning across seven member organizations, the Chief Financial Officer ensures robust fiscal health. This critical role involves managing relationships with financial institutions, investors, and regulatory bodies to secure capital and maintain compliance. By analyzing financial performance data, Ekerete Akpan drives initiatives to enhance profitability, control costs, and support strategic investments in patient care and infrastructure. Ultimately, Akpan safeguards the financial integrity of Sinai Chicago, enabling its mission to serve 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-based health and social services. Overseeing programs that address social determinants of health and improve wellness outcomes for underserved populations, the President of Sinai Community Institute drives strategic initiatives focused on health equity. This leadership position involves managing partnerships with community organizations, government agencies, and internal health system departments to deliver integrated care solutions. By championing innovative approaches to community engagement, Debra Wesley enhances access to essential services and promotes healthier living across Chicago neighborhoods. Ultimately, Wesley strengthens the Sinai Chicago mission through impactful community outreach and development.

    Helen Margellos-Anast - President, Sinai Urban Health Institute

    Helen Margellos-Anast, the President, Sinai Urban Health Institute at Sinai Chicago, spearheads initiatives focused on improving urban health outcomes and addressing public health challenges. Overseeing research, policy development, and program implementation, the President, Sinai Urban Health Institute drives evidence-based strategies to enhance community well-being in Chicago. This executive role involves fostering collaborations with academic institutions, governmental bodies, and community stakeholders to advance public health goals. By directing data-driven interventions and advocacy efforts, Helen Margellos-Anast contributes to reducing health disparities and promoting healthier environments. Ultimately, Margellos-Anast strengthens Sinai Chicago's impact by translating urban health insights into actionable community improvements.
    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 the optimization of patient billing, insurance claims processing, and revenue capture across the health system's seven member organizations, the Chief Revenue Officer ensures maximum financial yield. This leadership role involves close collaboration with the Chief Financial Officer to align revenue targets with overall fiscal health. By implementing advanced revenue analytics, Thomasina Wilkins drives initiatives to enhance collection rates and reduce outstanding accounts receivable. Ultimately, Wilkins secures sustainable financial operations, supporting the delivery of critical healthcare services throughout Chicago.

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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 5 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, Sinai Urban Health Institute, Chief Revenue Officer.