ValleyHealth Executive and Leadership Team

August, 2026

Leadership Overview

ValleyHealth has 10 executives leading key functions including strategy, marketing, financial oversight, operational management, human resources, and medical staff governance.

Committed to regional wellness, ValleyHealth delivers comprehensive medical services across West Virginia, Maryland, and the Top of Virginia through a robust network of hospitals and physician practices.

Leadership Roles at ValleyHealth

  • President & Chief Executive Officer - Mark Nantz
  • Chief Financial Officer - Bob Amos
  • Chief Operating Officer - Kevin Sheppard
  • Chief Operating Officer & Valley Health & President, Winchester Medical Center - Tonya Smith
  • President, Medical Staff - Anthony Haywood
  • President - David Adams
  • Chief Marketing Officer - William Zehner
  • Chief Human Resources Officer - Mary Roxer
  • Chief Administrative Officer - Chris Rucker
  • Chief Operations Officer & Interim Chief Administrative Officer - Henry Marla
  • Mark Nantz - President & Chief Executive Officer

    Mark Nantz, the President & Chief Executive Officer at ValleyHealth, directs the overarching strategic vision for this not-for-profit health system. Overseeing the integration of hospitals, urgent care centers, and physician practices, the President & Chief Executive Officer ensures the delivery of high-quality medical services across West Virginia, Maryland, and the Top of Virginia. This leadership role involves constant collaboration with the Board to maintain financial sustainability while expanding access to care. By aligning clinical outcomes with organizational goals, Mark Nantz drives the long-term mission of the system. Nantz prioritizes patient-centered initiatives that strengthen the health infrastructure throughout the region. Through rigorous oversight of all system-wide operations, the President & Chief Executive Officer maintains the standard of excellence established in 1903. Nantz secures the future of the organization by fostering innovation in community health delivery and ensuring that every facility meets the evolving medical needs of the diverse populations served.

    Bob Amos - Chief Financial Officer

    Bob Amos, the Chief Financial Officer at ValleyHealth, manages the fiscal health and capital allocation for the entire not-for-profit system. Overseeing revenue cycle management and budgetary planning, the Chief Financial Officer ensures that resources remain available to support hospitals and physician practices across West Virginia, Maryland, and the Top of Virginia. This role involves rigorous financial reporting and risk assessment to maintain the stability of the organization. By optimizing operational costs, Bob Amos supports the expansion of medical services and the acquisition of advanced technology. Amos collaborates with the executive team to align financial strategies with the long-term mission of the system. The Chief Financial Officer monitors economic indicators to protect the assets of the institution. Through disciplined fiscal governance, Amos secures the financial foundation necessary for the system to continue providing essential care to the region while maintaining its not-for-profit status.
    Bob Amos

    Kevin Sheppard - Chief Operating Officer

    Kevin Sheppard, the Chief Operating Officer at ValleyHealth, directs the daily clinical and administrative workflows across the hospital network. Focusing on internal efficiency and patient throughput, the Chief Operating Officer ensures that facilities in West Virginia, Maryland, and the Top of Virginia operate at peak performance. This role involves streamlining hospital processes to reduce wait times and improve the quality of care delivered in urgent care settings. By implementing standardized protocols, Kevin Sheppard enhances the operational consistency of the entire system. Sheppard works closely with department heads to resolve logistical challenges and optimize resource utilization. The Chief Operating Officer monitors key performance indicators to identify areas for improvement in clinical delivery. Through active management of hospital infrastructure, Sheppard supports the mission of the organization by ensuring that every patient receives timely and effective medical attention within the expansive regional network.

    Tonya Smith - Chief Operating Officer & Valley Health & President, Winchester Medical Center

    Tonya Smith, the Chief Operating Officer & Valley Health & President, Winchester Medical Center at ValleyHealth, directs the strategic operations of the flagship medical center while overseeing broader system-wide initiatives. Focusing on the clinical excellence of the Winchester facility, the Chief Operating Officer & Valley Health & President, Winchester Medical Center ensures that high-acuity services meet the needs of patients in West Virginia, Maryland, and the Top of Virginia. This role involves managing the complex interplay between hospital administration and medical staff to optimize patient outcomes. By driving operational improvements at the Winchester site, Tonya Smith sets a standard for the rest of the system. Smith coordinates with other executives to ensure that the flagship center remains a hub for advanced medical care. The Chief Operating Officer & Valley Health & President, Winchester Medical Center monitors quality metrics to maintain the reputation of the institution as a leader in regional healthcare.
    Tonya Smith

    Anthony Haywood - President, Medical Staff

    Anthony Haywood, the President, Medical Staff at ValleyHealth, directs the professional governance and clinical standards for the physicians within the system. Overseeing the credentialing and peer review processes, the President, Medical Staff ensures that the quality of care across West Virginia, Maryland, and the Top of Virginia remains consistent with the mission of the organization. This role involves facilitating communication between the medical staff and the executive leadership to align clinical practices with system-wide goals. By promoting evidence-based medicine, Anthony Haywood enhances the standard of care provided in hospitals and physician practices. Haywood leads initiatives to improve physician engagement and retention. The President, Medical Staff monitors clinical outcomes to identify opportunities for professional development. Through active leadership of the medical community, Haywood ensures that the system maintains a high caliber of clinical expertise to meet the diverse medical needs of the region.

    David Adams - President

    David Adams, the President at ValleyHealth, directs the strategic growth and regional expansion of the health system. Focusing on the development of new service lines and the strengthening of existing physician practices, the President ensures that the organization remains responsive to the medical needs of West Virginia, Maryland, and the Top of Virginia. This role involves identifying opportunities for partnership and community outreach to broaden the impact of the system. By analyzing regional health trends, David Adams guides the long-term planning of the organization. Adams collaborates with the executive team to ensure that all facilities maintain the high standards of care expected by the community. The President monitors the competitive landscape to maintain the market position of the system. Through strategic leadership, Adams drives the mission of the organization forward, ensuring that the health system continues to provide essential medical services to the region.

    William Zehner - Chief Marketing Officer

    William Zehner, the Chief Marketing Officer at ValleyHealth, architects the brand strategy and public engagement initiatives for the entire health system. Managing communication channels across West Virginia, Maryland, and the Top of Virginia, the Chief Marketing Officer ensures that patients understand the full scope of services available within the network. This role involves developing outreach programs that highlight the expertise of physician practices and the accessibility of urgent care facilities. By analyzing market trends, William Zehner optimizes the visibility of the system to attract and retain patients. Zehner coordinates with clinical leadership to promote new service lines and community health programs. The Chief Marketing Officer maintains brand consistency across all digital and physical touchpoints, reinforcing the reputation of the organization. Through data-driven campaigns, Zehner expands the reach of the system, ensuring that the community remains informed about the comprehensive medical resources provided by the institution.

    Mary Roxer - Chief Human Resources Officer

    Mary Roxer, the Chief Human Resources Officer at ValleyHealth, architects the talent acquisition and workforce development strategies for the entire health system. Overseeing recruitment, retention, and employee engagement, the Chief Human Resources Officer ensures that hospitals and physician practices across West Virginia, Maryland, and the Top of Virginia remain staffed with high-quality medical professionals. This role involves designing training programs that align with the evolving needs of the healthcare industry. By fostering a culture of excellence, Mary Roxer supports the professional growth of the staff. Roxer collaborates with leadership to implement policies that promote workplace safety and inclusivity. The Chief Human Resources Officer manages compensation structures to remain competitive in the regional labor market. Through strategic workforce planning, Roxer ensures that the organization maintains the human capital necessary to deliver exceptional patient care across all service lines and facilities.
    Mary Roxer

    Chris Rucker - Chief Administrative Officer

    Chris Rucker, the Chief Administrative Officer at ValleyHealth, directs the non-clinical support functions and organizational infrastructure of the health system. Overseeing facilities management, supply chain logistics, and administrative policy, the Chief Administrative Officer ensures that hospitals and physician practices across West Virginia, Maryland, and the Top of Virginia function without disruption. This role involves optimizing the physical environment of the system to support clinical staff and patient comfort. By streamlining administrative processes, Chris Rucker reduces overhead and improves the overall efficiency of the organization. Rucker collaborates with the executive team to implement technology solutions that enhance administrative oversight. The Chief Administrative Officer monitors compliance with regulatory standards to protect the integrity of the system. Through meticulous management of support services, Rucker provides the foundation necessary for the clinical teams to focus entirely on delivering high-quality medical care to the community.
    Chris Rucker

    Henry Marla - Chief Operations Officer & Interim Chief Administrative Officer

    Henry Marla, the Chief Operations Officer & Interim Chief Administrative Officer at ValleyHealth, directs the tactical execution of clinical and administrative projects across the system. Overseeing the integration of new operational workflows, the Chief Operations Officer & Interim Chief Administrative Officer ensures that hospitals and physician practices in West Virginia, Maryland, and the Top of Virginia maintain high levels of productivity. This role involves managing the transition of administrative functions to improve overall system agility. By optimizing the use of medical equipment and facility space, Henry Marla enhances the operational capacity of the organization. Marla works with department leaders to resolve bottlenecks and improve service delivery. The Chief Operations Officer & Interim Chief Administrative Officer monitors project timelines to ensure that strategic initiatives meet their objectives. Through hands-on management, Marla supports the mission of the system by ensuring that all operational and administrative components function in harmony.

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    Frequently Asked Questions Regarding ValleyHealth Top Executives and Leadership Team

    Who leads ValleyHealth?
    ValleyHealth is led by Mark Nantz (President & Chief Executive Officer), along with executives such as Bob Amos (Chief Financial Officer) and Kevin Sheppard (Chief Operating Officer).
    Who is part of ValleyHealth’s executive team?
    The executive team of ValleyHealth includes leaders such as Mark Nantz (President & Chief Executive Officer), Bob Amos (Chief Financial Officer), Kevin Sheppard (Chief Operating Officer) and other senior executives.
    How many executives does ValleyHealth have?
    ValleyHealth has 10 executives leading key business areas.
    What roles are included in ValleyHealth’s leadership team?
    The leadership team of ValleyHealth includes roles such as President & Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, Chief Operating Officer & Valley Health & President, Winchester Medical Center, President, Medical Staff.