Williamson Health Executive and Leadership Team

September, 2026

Leadership Overview

Williamson Health has 8 executives leading key functions including strategic oversight, orthopedic excellence, operational management, administrative coordination, financial planning, medical staff governance, clinical leadership, and medical group administration.

Committed to delivering exceptional care close to home, Williamson Health advances regional health outcomes through a historic $200 million hospital expansion and a comprehensive network of specialized medical services.

Leadership Roles at Williamson Health

  • Chief Executive Officer - Phillip Mazzuca
  • Chief Executive Officer, Bone and Joint Institute of Tennessee - John Reynolds
  • Interim Chief Financial Officer - Terry Fowler
  • Chief Operating Officer - Julie Miller
  • Chief of Staff - Heather Rupe
  • Vice Chief of Staff - Austin Rich
  • Chief Medical Officer - Andy Russell
  • Group Chief Administrative Officer, Williamson Health Medical - Tim Burton
  • Phillip Mazzuca - Chief Executive Officer

    Phillip Mazzuca, the Chief Executive Officer at Williamson Health, directs the overarching strategic vision for the entire regional healthcare system. Mazzuca manages the $200 million expansion project at the flagship hospital, ensuring that infrastructure growth aligns with the evolving needs of the community. By coordinating with the Board and executive leadership, the Chief Executive Officer maintains high standards across all 30 locations and 860 physicians. This leadership role involves fostering partnerships with Vanderbilt Health to enhance service delivery in Tennessee. Phillip Mazzuca drives operational excellence by prioritizing patient-centered care and long-term financial sustainability. Through rigorous oversight of the system-wide mission, the Chief Executive Officer secures the future of local healthcare access. Mazzuca champions innovation in surgical technologies and emergency services, ensuring that the organization remains a premier provider for both adult and pediatric patients throughout the region.

    John Reynolds - Chief Executive Officer, Bone and Joint Institute of Tennessee

    John Reynolds, the Chief Executive Officer, Bone and Joint Institute of Tennessee at Williamson Health, architects the specialized orthopedic strategy for the regional network. Reynolds oversees the clinical and administrative operations of the Bone and Joint Institute, ensuring that patients receive leading-edge musculoskeletal care. By integrating advanced surgical technologies into daily practice, the Chief Executive Officer, Bone and Joint Institute of Tennessee drives superior outcomes for orthopedic patients. This role requires close collaboration with the broader Williamson Health leadership to align orthopedic services with the system-wide expansion goals. John Reynolds manages the recruitment of top-tier orthopedic specialists to maintain the institute's reputation for excellence. Through the optimization of outpatient imaging and surgical workflows, Reynolds enhances the efficiency of the institute. The Chief Executive Officer, Bone and Joint Institute of Tennessee secures the institute's position as a leader in regional orthopedics by focusing on patient recovery and innovative treatment protocols.

    Terry Fowler - Interim Chief Financial Officer

    Terry Fowler, the Interim Chief Financial Officer at Williamson Health, manages the fiscal health and long-term financial planning for the regional system. Fowler oversees the budgeting process for the $200 million expansion project and the ongoing operations of all 30 locations. By analyzing revenue cycles and cost structures, the Interim Chief Financial Officer ensures that the organization maintains the capital necessary for investing in advanced surgical technologies and emergency services. This role involves providing financial guidance to the executive team to support strategic decision-making. Terry Fowler monitors the financial performance of joint ventures with Vanderbilt Health to ensure alignment with corporate goals. Through the implementation of rigorous financial controls, the Interim Chief Financial Officer drives fiscal responsibility across the entire network. Fowler secures the financial foundation required to support the system's mission of providing high-quality care. The Interim Chief Financial Officer maintains the economic viability of the organization through disciplined resource management.

    Julie Miller - Chief Operating Officer

    Julie Miller, the Chief Operating Officer at Williamson Health, executes the daily operational functions across the entire healthcare system. Miller manages the complex logistics of 30 locations, ensuring that clinical departments operate with maximum efficiency. By overseeing the integration of new medical technologies and facility upgrades, the Chief Operating Officer supports the system-wide $200 million expansion project. This role involves streamlining patient flow and optimizing resource allocation to maintain high-quality care standards. Julie Miller coordinates with department heads to ensure that staffing levels meet the demands of the emergency and inpatient services. Through the implementation of standardized operational protocols, the Chief Operating Officer drives consistency across all physician practices. Miller monitors key performance indicators to identify areas for improvement in service delivery. By focusing on operational scalability, the Chief Operating Officer ensures that the organization effectively serves the growing population of Williamson County.

    Heather Rupe - Chief of Staff

    Heather Rupe, the Chief of Staff at Williamson Health, directs the administrative alignment between the medical staff and the executive leadership team. Rupe manages the governance processes for the 860 physicians and advance care practitioners, ensuring compliance with clinical standards. By facilitating communication between the Board and the medical staff, the Chief of Staff supports the strategic initiatives of the flagship hospital. This role involves overseeing the credentialing and professional development programs that maintain the high quality of care at Williamson Medical Center. Heather Rupe coordinates the administrative functions of the medical staff office to ensure seamless operations. Through the management of committee structures and policy development, the Chief of Staff drives organizational stability. Rupe ensures that the medical staff remains focused on the mission of providing exceptional healthcare. The Chief of Staff plays a vital role in maintaining the collaborative culture necessary for the success of the regional health system.

    Austin Rich - Vice Chief of Staff

    Austin Rich, the Vice Chief of Staff at Williamson Health, supports the medical staff leadership in maintaining clinical excellence across the system. Rich assists in the oversight of physician performance and the implementation of evidence-based medical practices. By collaborating with the Chief of Staff, the Vice Chief of Staff ensures that the medical staff remains aligned with the strategic goals of the flagship hospital. This role involves participating in the peer review process and the development of clinical protocols for the emergency and inpatient departments. Austin Rich manages the integration of new physicians into the system, ensuring that they adhere to the high standards of care expected by the community. Through the coordination of medical staff meetings and initiatives, the Vice Chief of Staff drives professional engagement. Rich supports the overall mission by fostering a culture of continuous improvement. The Vice Chief of Staff ensures that the medical staff remains prepared to meet the healthcare needs of the region.

    Andy Russell - Chief Medical Officer

    Andy Russell, the Chief Medical Officer at Williamson Health, directs the clinical quality and patient safety initiatives across the entire healthcare system. Russell oversees the medical standards for the award-winning obstetrics, NICU, and cardiology services. By leading the clinical leadership team, the Chief Medical Officer ensures that all 860 physicians and practitioners provide evidence-based care. This role involves monitoring patient outcomes and implementing quality improvement programs to enhance the standard of care at Williamson Medical Center. Andy Russell collaborates with the executive team to integrate advanced medical technologies into the clinical workflow. Through the oversight of clinical governance, the Chief Medical Officer drives excellence in patient safety and satisfaction. Russell ensures that the system remains at the forefront of medical innovation. The Chief Medical Officer maintains the clinical integrity of the organization by focusing on the delivery of exceptional healthcare services to the community.

    Tim Burton - Group Chief Administrative Officer, Williamson Health Medical

    Tim Burton, the Group Chief Administrative Officer, Williamson Health Medical at Williamson Health, manages the administrative operations of the physician practices located throughout the community. Burton oversees the integration of these practices into the broader regional system, ensuring that administrative processes remain consistent and efficient. By coordinating the support services for the physician groups, the Group Chief Administrative Officer, Williamson Health Medical drives operational alignment with the flagship hospital. This role involves managing the administrative staff and optimizing the workflows within the various clinics. Tim Burton works closely with the executive leadership to ensure that the physician practices support the overall mission of the organization. Through the implementation of administrative best practices, the Group Chief Administrative Officer, Williamson Health Medical enhances the patient experience across all outpatient locations. Burton ensures that the physician practices remain well-resourced and capable of providing high-quality care. The Group Chief Administrative Officer, Williamson Health Medical secures the operational success of the community-based clinics.

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    Frequently Asked Questions Regarding Williamson Health Top Executives and Leadership Team

    Who leads Williamson Health?
    Williamson Health is led by Phillip Mazzuca (Chief Executive Officer), along with executives such as John Reynolds (Chief Executive Officer, Bone and Joint Institute of Tennessee) and Terry Fowler (Interim Chief Financial Officer).
    Who is part of Williamson Health’s executive team?
    The executive team of Williamson Health includes leaders such as Phillip Mazzuca (Chief Executive Officer), John Reynolds (Chief Executive Officer, Bone and Joint Institute of Tennessee), Terry Fowler (Interim Chief Financial Officer) and other senior executives.
    How many executives does Williamson Health have?
    Williamson Health has 8 executives leading key business areas.
    What roles are included in Williamson Health’s leadership team?
    The leadership team of Williamson Health includes roles such as Chief Executive Officer, Chief Executive Officer, Bone and Joint Institute of Tennessee, Interim Chief Financial Officer, Chief Operating Officer, Chief of Staff.