Tennova Healthcare Executive and Leadership Team

July, 2026

Leadership Overview

Tennova Healthcare has 8 executives leading key functions including strategy, operations, finance, and medical affairs.

Driven by a commitment to patient well-being, Tennova Healthcare operates a network of hospitals and facilities dedicated to delivering comprehensive health services across Tennessee, fostering community health through accessible and quality care.

Leadership Roles at Tennova Healthcare

  • Chief Executive Officer - Scott Williams
  • Chief Financial Officer - Chrissy Lewing
  • Interim Chief Financial Officer - David Summers
  • Chief Operating Officer - Nathan Irwin
  • Chief of Staff - Constantino Diaz Miranda
  • Vice Chief of Staff, Elect - Christopher Gilbertson
  • Information Systems Chief Information Officer & Director - Stefan Hopper
  • Chief Medical Officer - James Morris
  • Scott Williams - Chief Executive Officer

    Scott Williams, the Chief Executive Officer at Tennova Healthcare, directs the overall strategic vision and operational execution for the health network. Overseeing all major business units, Scott Williams ensures alignment with the organization's mission to provide high-quality healthcare services across its multiple hospital and facility locations. This leadership role involves driving growth initiatives, optimizing resource allocation, and fostering a culture of excellence throughout the Tennova Healthcare system. By setting the strategic direction, Scott Williams guides the organization in navigating the complex healthcare landscape, focusing on enhancing patient outcomes and expanding access to care within the communities served. The Chief Executive Officer's purview encompasses financial performance, regulatory compliance, and the cultivation of strong relationships with stakeholders, including medical staff, patients, and the broader Tennessee community.

    Chrissy Lewing - Chief Financial Officer

    Chrissy Lewing, the Chief Financial Officer at Tennova Healthcare, directs all financial operations and fiscal strategy for the health network. Overseeing budgeting, financial planning, and revenue cycle management, Chrissy Lewing ensures the financial health and sustainability of Tennova Healthcare's hospitals and facilities. This critical role involves managing investments, securing financing, and optimizing financial performance to support patient care initiatives and organizational growth. By providing insightful financial analysis, the Chief Financial Officer guides executive decisions on resource allocation and strategic investments. Lewing's responsibilities extend to ensuring compliance with all financial regulations and reporting standards, maintaining transparency and accountability across the organization. The Chief Financial Officer's leadership is essential for driving financial efficiency and supporting the long-term viability of Tennova Healthcare's mission.

    David Summers - Interim Chief Financial Officer

    David Summers, the Interim Chief Financial Officer at Tennova Healthcare, provides critical financial oversight and guidance during a transitional period for the organization. Managing financial planning, reporting, and fiscal operations, David Summers ensures continuity and stability in the financial management of the health network. This role involves maintaining robust financial controls, overseeing budgeting processes, and supporting strategic financial initiatives to uphold the organization's operational integrity. By offering expert financial leadership, Summers guides the executive team through complex financial decisions, ensuring resources are allocated effectively to support patient care and network growth. The Interim Chief Financial Officer's focus is on maintaining financial discipline and driving performance improvements across Tennova Healthcare's facilities. Summers's expertise is vital in navigating financial challenges and opportunities.

    Nathan Irwin - Chief Operating Officer

    Nathan Irwin, the Chief Operating Officer at Tennova Healthcare, oversees the day-to-day operational management of the health network's facilities and services. Driving operational efficiency and service excellence, Nathan Irwin ensures that all hospitals and healthcare centers function effectively to deliver high-quality patient care. This leadership position involves managing hospital administration, optimizing clinical workflows, and implementing best practices across all operational departments. By focusing on process improvement and resource optimization, the Chief Operating Officer enhances the overall patient experience and operational effectiveness. Irwin's responsibilities include overseeing facility management, ensuring compliance with healthcare regulations, and leading initiatives to improve patient safety and satisfaction. The Chief Operating Officer plays a pivotal role in translating strategic goals into tangible operational outcomes for Tennova Healthcare.

    Constantino Diaz Miranda - Chief of Staff

    Constantino Diaz Miranda, the Chief of Staff at Tennova Healthcare, provides direct support and strategic counsel to the Chief Executive Officer, facilitating the execution of key initiatives. Managing critical projects and cross-functional team coordination, Constantino Diaz Miranda ensures operational priorities are met efficiently across the health network. This role involves streamlining communication channels between executive leadership and various departments, enhancing organizational effectiveness. By acting as a central point of contact for strategic planning and implementation, the Chief of Staff drives progress on complex organizational goals. Constantino Diaz Miranda's responsibilities include overseeing special projects, analyzing operational data to inform executive decisions, and ensuring the seamless integration of new strategies within the Tennova Healthcare framework. The Chief of Staff's focus remains on enhancing leadership productivity and advancing the organization's strategic objectives.

    Christopher Gilbertson - Vice Chief of Staff, Elect

    Christopher Gilbertson, the Vice Chief of Staff, Elect at Tennova Healthcare, supports the Chief of Staff in managing strategic initiatives and operational coordination across the health network. Assisting in the execution of key projects and facilitating communication between leadership and medical staff, Christopher Gilbertson ensures alignment with organizational objectives. This role involves contributing to the development and implementation of operational improvements designed to enhance patient care delivery and administrative efficiency. By actively participating in leadership meetings and project teams, Gilbertson helps to drive forward critical organizational priorities. The Vice Chief of Staff, Elect's responsibilities include supporting the Chief of Staff in administrative duties and contributing to the strategic planning process for Tennova Healthcare. Gilbertson's engagement is key to strengthening leadership effectiveness and operational synergy.

    Stefan Hopper - Information Systems Chief Information Officer & Director

    Stefan Hopper, the Information Systems Chief Information Officer & Director at Tennova Healthcare, leads the strategic development and implementation of information technology systems across the health network. Overseeing all aspects of IT infrastructure, cybersecurity, and digital health initiatives, Stefan Hopper ensures that technology effectively supports patient care, operational efficiency, and data security. This leadership position involves managing the integration of electronic health records, optimizing data management systems, and driving innovation in healthcare technology. By championing digital transformation, Hopper enhances the organization's ability to leverage data for improved clinical outcomes and operational performance. Hopper's responsibilities include developing IT policies, managing technology budgets, and ensuring compliance with healthcare data privacy regulations. The Chief Information Officer & Director's vision is crucial for modernizing Tennova Healthcare's technological capabilities.

    James Morris - Chief Medical Officer

    James Morris, the Chief Medical Officer at Tennova Healthcare, provides clinical leadership and strategic direction for all medical affairs within the health network. Overseeing physician services, quality improvement initiatives, and patient safety programs, James Morris ensures the highest standards of clinical care are maintained across Tennova Healthcare's facilities. This vital role involves collaborating with hospital leadership and medical staff to enhance clinical protocols, drive evidence-based practices, and foster a culture of continuous medical education. By focusing on clinical excellence, Morris guides the organization in achieving superior patient outcomes and satisfaction. Morris's responsibilities include managing medical staff credentialing, overseeing clinical research, and ensuring compliance with all medical regulations. The Chief Medical Officer's expertise is fundamental to the quality and effectiveness of healthcare services provided.

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    Frequently Asked Questions Regarding Tennova Healthcare Top Executives and Leadership Team

    Who leads Tennova Healthcare?
    Tennova Healthcare is led by Scott Williams (Chief Executive Officer), along with executives such as Chrissy Lewing (Chief Financial Officer) and David Summers (Interim Chief Financial Officer).
    Who is part of Tennova Healthcare’s executive team?
    The executive team of Tennova Healthcare includes leaders such as Scott Williams (Chief Executive Officer), Chrissy Lewing (Chief Financial Officer), David Summers (Interim Chief Financial Officer) and other senior executives.
    How many executives does Tennova Healthcare have?
    Tennova Healthcare has 8 executives leading key business areas.
    What roles are included in Tennova Healthcare’s leadership team?
    The leadership team of Tennova Healthcare includes roles such as Chief Executive Officer, Chief Financial Officer, Interim Chief Financial Officer, Chief Operating Officer, Chief of Staff.