Delta Health System Executive and Leadership Team

July, 2026

Leadership Overview

Delta Health System has 8 executives leading key functions including strategy, finance, operations, and human resources.

Driven by a commitment to community well-being, Delta Health System provides high-quality medical services across the tri-state Delta region, ensuring access to skilled physicians and compassionate care.

Leadership Roles at Delta Health System

  • Chief Executive Officer - Iris Stacker
  • Chief Financial Officer - Tod Beasley
  • Chief of Staff - Brett Zepponi
  • Chief Human Resources Officer - Chrissy Nicholson
  • Vice Chief of Staff - Jeffery Doolittle
  • Chief Human Resources Officer - Melanie Mathews
  • Immediate Chief of Staff - Wayne Dotson
  • Vice Chief of Staff - Maroun Hayek
  • Iris Stacker - Chief Executive Officer

    Iris Stacker, the Chief Executive Officer at Delta Health System, directs the overall strategic vision and operational execution for the organization. Overseeing all major initiatives, Iris Stacker ensures the system's mission of providing high-quality medical services to the tri-state Delta region remains paramount. This leadership role involves fostering a culture of excellence among physicians and staff, guaranteeing that patients receive both advanced medical care and personalized, hometown hospitality. By aligning departmental goals with the overarching objectives of The Medical Center, Northwest Regional, and Highland Hills, the Chief Executive Officer drives the system's commitment to community health and long-term sustainability. Strategic decisions made under this leadership directly impact patient outcomes and the organization's standing within the healthcare landscape.

    Tod Beasley - Chief Financial Officer

    Tod Beasley, the Chief Financial Officer at Delta Health System, manages all financial operations and fiscal strategy for the organization. Overseeing budgeting, financial planning, and resource allocation, Tod Beasley ensures the financial health and stability necessary to support the mission of providing high-quality medical services. This role involves rigorous analysis of financial performance across The Medical Center, Northwest Regional, and Highland Hills, identifying opportunities for cost optimization and revenue enhancement. By maintaining strong financial controls and compliance, the Chief Financial Officer safeguards the system's assets and supports its continued growth and service to the tri-state Delta region. Strategic financial management under Beasley's direction is critical for sustaining operational excellence and investing in future healthcare advancements.

    Brett Zepponi - Chief of Staff

    Brett Zepponi, the Chief of Staff at Delta Health System, facilitates strategic initiatives and operational alignment across the executive leadership team. Overseeing key projects and ensuring seamless communication between departments, Brett Zepponi supports the Chief Executive Officer in executing the system's mission of delivering exceptional medical care. This position involves coordinating efforts among The Medical Center, Northwest Regional, and Highland Hills, driving efficiency and ensuring that all operations reflect the commitment to quality and hometown hospitality. By managing critical workflows and supporting executive decision-making, the Chief of Staff plays a vital part in maintaining the high standards of service for the tri-state Delta region. Zepponi's focus ensures that strategic priorities translate into tangible improvements in patient care and organizational effectiveness.

    Chrissy Nicholson - Chief Human Resources Officer

    Chrissy Nicholson, the Chief Human Resources Officer at Delta Health System, leads all human capital strategies and employee relations initiatives. Overseeing talent acquisition, development, and retention, Chrissy Nicholson ensures that the organization attracts and maintains a skilled workforce dedicated to the mission of high-quality medical services. This role is crucial for fostering a supportive work environment across The Medical Center, Northwest Regional, and Highland Hills, reinforcing the commitment to hometown hospitality. By developing comprehensive HR policies and programs, the Chief Human Resources Officer cultivates a culture that values both professional excellence and employee well-being. Nicholson's leadership ensures that the dedicated physicians and staff are empowered to provide the best possible care to the citizens and communities of the tri-state Delta region.

    Jeffery Doolittle - Vice Chief of Staff

    Jeffery Doolittle, the Vice Chief of Staff at Delta Health System, provides critical support to the Chief of Staff in managing operational flow and strategic execution. Overseeing specific projects and initiatives, Jeffery Doolittle ensures alignment with the system's core mission of delivering high-quality medical services throughout the tri-state Delta region. This role involves close collaboration with leadership across The Medical Center, Northwest Regional, and Highland Hills, enhancing coordination and driving efficiency. By assisting in the implementation of key organizational strategies, the Vice Chief of Staff contributes significantly to maintaining the standard of care and the ethos of hometown hospitality. Doolittle's efforts are instrumental in translating executive directives into actionable steps that benefit patient care and staff engagement.

    Melanie Mathews - Chief Human Resources Officer

    Melanie Mathews, the Chief Human Resources Officer at Delta Health System, spearheads initiatives focused on workforce development and employee engagement. Overseeing the implementation of innovative HR strategies, Melanie Mathews ensures that Delta Health System attracts and retains top talent committed to its mission of providing exceptional medical services. This leadership position is vital for cultivating a positive and productive work environment across The Medical Center, Northwest Regional, and Highland Hills, reinforcing the system's dedication to hometown hospitality. By championing programs that support staff well-being and professional growth, Mathews directly contributes to the delivery of high-quality care throughout the tri-state Delta region. The focus remains on building a robust and motivated team capable of meeting the evolving healthcare needs of the community.

    Wayne Dotson - Immediate Chief of Staff

    Wayne Dotson, the Immediate Chief of Staff at Delta Health System, manages the day-to-day operational priorities and executive communications. Overseeing critical administrative functions, Wayne Dotson ensures the seamless execution of strategies aimed at delivering high-quality medical services across the tri-state Delta region. This role involves close coordination with various departments within The Medical Center, Northwest Regional, and Highland Hills, facilitating efficient operations and reinforcing the commitment to hometown hospitality. By providing direct support to the executive leadership, the Immediate Chief of Staff plays a key part in maintaining organizational momentum and ensuring that patient care remains the central focus. Dotson's leadership ensures that operational demands are met while upholding the system's core values and service standards.

    Maroun Hayek - Vice Chief of Staff

    Maroun Hayek, the Vice Chief of Staff at Delta Health System, supports the Chief of Staff in driving strategic objectives and operational improvements. Overseeing specific projects and cross-functional teams, Maroun Hayek ensures the effective implementation of initiatives designed to enhance the delivery of high-quality medical services across the tri-state Delta region. This position involves close collaboration with leadership at The Medical Center, Northwest Regional, and Highland Hills, fostering synergy and operational excellence. By contributing to the strategic planning process and overseeing key assignments, the Vice Chief of Staff directly supports the system's commitment to providing compassionate care and hometown hospitality. Hayek's role is essential in translating high-level goals into tangible outcomes that benefit patients and the community.

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    Frequently Asked Questions Regarding Delta Health System Top Executives and Leadership Team

    Who leads Delta Health System?
    Delta Health System is led by Iris Stacker (Chief Executive Officer), along with executives such as Tod Beasley (Chief Financial Officer) and Brett Zepponi (Chief of Staff).
    Who is part of Delta Health System’s executive team?
    The executive team of Delta Health System includes leaders such as Iris Stacker (Chief Executive Officer), Tod Beasley (Chief Financial Officer), Brett Zepponi (Chief of Staff) and other senior executives.
    How many executives does Delta Health System have?
    Delta Health System has 8 executives leading key business areas.
    What roles are included in Delta Health System’s leadership team?
    The leadership team of Delta Health System includes roles such as Chief Executive Officer, Chief Financial Officer, Chief of Staff, Chief Human Resources Officer, Vice Chief of Staff.