Sentara Healthcare Executive and Leadership Team

August, 2026

Leadership Overview

Sentara Healthcare has 10 executives leading key functions including strategy, clinical operations, information technology, financial management, and marketing.

Committed to advancing community wellness, Sentara Healthcare delivers comprehensive medical services through an integrated network of hospitals, imaging centers, and specialized outpatient facilities across the region.

Leadership Roles at Sentara Healthcare

  • President & Chief Executive Officer - Dennis Matheis
  • Vice President Chief of Staff To President and Chief Executive Officer - Jessica Lowder
  • Blue Ridge Region Vice President & Chief Financial Officer - Stewart Nelson
  • Chief Financial Officer, Market, Hospitals (Virginia Beach) - Andrew Markow
  • Director, Office of Ambulatory President (Chief of Staff) - Kathryn Markham
  • Chief of Staff To the President of Sentara Health Plans - Page Gupton
  • Chief of Staff - George Jordan
  • Chief of Staff To the Chief Information Officer - Dennis Kramer
  • Executive Vice President & Chief Information Officer, Enterprise - Tim Skeen
  • Interim Vice President and Chief Marketing Officer - Thomas Guirkin
  • Dennis Matheis - President & Chief Executive Officer

    Dennis Matheis, the President & Chief Executive Officer at Sentara Healthcare, directs the overarching strategic vision for this integrated health system. Overseeing the entire network of hospitals, imaging centers, and home health agencies, the President & Chief Executive Officer ensures operational excellence across all clinical service lines. Matheis coordinates with the Board to align long-term growth initiatives with the evolving needs of patients throughout the mid-Atlantic region. By prioritizing high-quality care delivery and financial sustainability, the President & Chief Executive Officer maintains the organization's status as a leader in not-for-profit healthcare. Dennis Matheis fosters a culture of innovation, driving the expansion of outpatient facilities and medical transport services to improve accessibility. Through rigorous oversight of system-wide performance, Matheis secures the future of the enterprise while upholding the core mission of improving health every day.
    Dennis Matheis

    Jessica Lowder - Vice President Chief of Staff To President and Chief Executive Officer

    Jessica Lowder, the Vice President Chief of Staff To President and Chief Executive Officer at Sentara Healthcare, manages the executive office operations for the top leadership. Coordinating the strategic agenda for the President and Chief Executive Officer, the Vice President Chief of Staff To President and Chief Executive Officer ensures that all organizational priorities receive focused attention. Lowder facilitates communication between the executive office and the broader leadership team, enabling the smooth execution of system-wide initiatives. By managing high-level projects and stakeholder engagement, the Vice President Chief of Staff To President and Chief Executive Officer supports the overall mission of the health system. Jessica Lowder monitors the progress of key corporate goals, ensuring that the organization remains aligned with its long-term vision. This role involves complex problem-solving and the coordination of cross-functional teams. Through diligent oversight, Lowder maintains the operational efficiency of the executive office, allowing the leadership to focus on delivering exceptional healthcare.

    Stewart Nelson - Blue Ridge Region Vice President & Chief Financial Officer

    Stewart Nelson, the Blue Ridge Region Vice President & Chief Financial Officer at Sentara Healthcare, directs the financial strategy for the Blue Ridge operational area. Overseeing the fiscal health of hospitals and outpatient facilities within this specific region, the Blue Ridge Region Vice President & Chief Financial Officer ensures that resources are allocated to maximize patient care quality. Nelson manages regional budgets, capital investments, and revenue cycle performance to support the system's long-term sustainability. By analyzing financial data, the Blue Ridge Region Vice President & Chief Financial Officer identifies opportunities for cost-efficiency and operational improvement. Stewart Nelson collaborates with regional clinical leaders to align financial goals with medical service delivery. This role involves rigorous oversight of regional financial reporting and compliance. Through strategic financial management, Nelson secures the resources necessary for the Blue Ridge region to thrive, ensuring that the organization continues to provide high-quality healthcare services to the local community.

    Andrew Markow - Chief Financial Officer, Market, Hospitals (Virginia Beach)

    Andrew Markow, the Chief Financial Officer, Market, Hospitals (Virginia Beach) at Sentara Healthcare, manages the financial operations for the hospital network in the Virginia Beach market. Overseeing the fiscal performance of these specific facilities, the Chief Financial Officer, Market, Hospitals (Virginia Beach) ensures that clinical departments have the necessary resources to provide high-quality care. Markow monitors revenue cycles, manages hospital budgets, and evaluates capital expenditure requests to support local growth. By analyzing market-specific financial trends, the Chief Financial Officer, Market, Hospitals (Virginia Beach) identifies strategies to improve operational efficiency and patient outcomes. Andrew Markow collaborates with hospital administrators to align financial performance with the system's broader goals. This role involves rigorous oversight of regional financial reporting and compliance. Through strategic financial management, Markow secures the stability of the Virginia Beach hospital market, ensuring that the organization continues to meet the healthcare needs of the local population.
    Andrew Markow

    Kathryn Markham - Director, Office of Ambulatory President (Chief of Staff)

    Kathryn Markham, the Director, Office of Ambulatory President (Chief of Staff) at Sentara Healthcare, oversees the administrative functions supporting the ambulatory care division. Managing the daily operations of this critical department, the Director, Office of Ambulatory President (Chief of Staff) ensures that outpatient facilities and physical therapy centers function at peak capacity. Markham coordinates strategic initiatives to expand access to ambulatory services, directly impacting the system's ability to provide community-based care. By streamlining communication between clinical leaders and administrative staff, the Director, Office of Ambulatory President (Chief of Staff) facilitates the rapid implementation of new health protocols. Kathryn Markham monitors performance metrics across all ambulatory sites, identifying opportunities for operational improvement. This leadership role requires constant collaboration with regional directors to maintain high standards of patient care. Through effective management of resources, Markham supports the growth of the ambulatory network, ensuring that the organization meets the increasing demand for outpatient medical services.

    Page Gupton - Chief of Staff To the President of Sentara Health Plans

    Page Gupton, the Chief of Staff To the President of Sentara Health Plans at Sentara Healthcare, manages the strategic operations of the insurance and health plan division. Coordinating the administrative functions of the health plans, the Chief of Staff To the President of Sentara Health Plans ensures that coverage initiatives align with the system's clinical mission. Gupton oversees the execution of member-focused programs, facilitating better access to the organization's hospitals and outpatient services. By managing the workflow of the health plan leadership, the Chief of Staff To the President of Sentara Health Plans enables efficient decision-making regarding network expansion and provider relations. Page Gupton monitors the performance of health plan operations, ensuring that all administrative processes support the overall financial health of the enterprise. This role requires constant collaboration with clinical leaders to integrate insurance services with patient care delivery. Through effective management, Gupton drives the success of the health plans, enhancing the value provided to members.

    George Jordan - Chief of Staff

    George Jordan, the Chief of Staff at Sentara Healthcare, manages executive workflows and facilitates communication across the senior leadership team. Coordinating complex administrative projects, the Chief of Staff ensures that strategic priorities receive immediate attention from the executive office. Jordan optimizes internal processes to support the seamless operation of hospitals and outpatient facilities. By bridging gaps between departments, the Chief of Staff enables efficient decision-making regarding the system's diverse medical services. George Jordan monitors the execution of corporate goals, ensuring alignment with the broader mission of the organization. This role involves managing high-level stakeholder relationships and preparing critical briefings for the executive leadership. Through meticulous planning and organizational oversight, Jordan maintains the operational tempo required for a large-scale healthcare provider. The Chief of Staff consistently drives efficiency, allowing the leadership team to focus on delivering superior patient outcomes across the entire network.

    Dennis Kramer - Chief of Staff To the Chief Information Officer

    Dennis Kramer, the Chief of Staff To the Chief Information Officer at Sentara Healthcare, manages the administrative and strategic agenda for the enterprise technology division. Coordinating the implementation of digital health solutions, the Chief of Staff To the Chief Information Officer ensures that IT initiatives support the broader clinical goals of the organization. Kramer oversees the alignment of technology projects with the needs of hospitals and imaging centers, facilitating seamless data integration across the system. By managing the workflow of the CIO office, the Chief of Staff To the Chief Information Officer enables the rapid deployment of secure medical transport communication systems. Dennis Kramer tracks the progress of enterprise-wide digital transformations, ensuring that all technical resources remain focused on improving patient care. This role involves high-level coordination with other C-suite leaders to prioritize technology investments. Through diligent oversight, Kramer maintains the operational integrity of the health system's digital infrastructure.

    Tim Skeen - Executive Vice President & Chief Information Officer, Enterprise

    Tim Skeen, the Executive Vice President & Chief Information Officer, Enterprise at Sentara Healthcare, architects the digital strategy for the entire integrated health system. Overseeing the deployment of advanced health information technology, the Executive Vice President & Chief Information Officer, Enterprise ensures that hospitals and outpatient facilities utilize secure, efficient data systems. Skeen drives the modernization of electronic health records and telehealth platforms, enhancing the quality of care across the network. By managing the enterprise technology budget and infrastructure, the Executive Vice President & Chief Information Officer, Enterprise supports the operational needs of all clinical departments. Tim Skeen collaborates with the executive team to integrate innovative digital tools into the patient experience. This leadership role involves mitigating cybersecurity risks while fostering technological growth. Through strategic investment in IT, Skeen enables the organization to maintain a competitive edge in the rapidly evolving healthcare landscape, ensuring reliable access to critical medical information.

    Thomas Guirkin - Interim Vice President and Chief Marketing Officer

    Thomas Guirkin, the Interim Vice President and Chief Marketing Officer at Sentara Healthcare, directs the brand strategy and communication efforts for the entire health system. Overseeing the promotion of hospitals, outpatient facilities, and specialized medical services, the Interim Vice President and Chief Marketing Officer ensures that the organization's mission reaches the community effectively. Guirkin manages marketing campaigns that highlight the system's commitment to quality care and patient accessibility. By analyzing market data, the Interim Vice President and Chief Marketing Officer identifies opportunities to strengthen the brand's presence across the region. Thomas Guirkin collaborates with clinical leaders to communicate the value of new medical services and facilities. This role involves managing public relations and digital marketing initiatives to engage patients and stakeholders. Through strategic brand management, Guirkin enhances the reputation of the organization, ensuring that the community remains informed about the comprehensive healthcare services available within the network.

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    Frequently Asked Questions Regarding Sentara Healthcare Top Executives and Leadership Team

    Who leads Sentara Healthcare?
    Sentara Healthcare is led by Dennis Matheis (President & Chief Executive Officer), along with executives such as Jessica Lowder (Vice President Chief of Staff To President and Chief Executive Officer) and Stewart Nelson (Blue Ridge Region Vice President & Chief Financial Officer).
    Who is part of Sentara Healthcare’s executive team?
    The executive team of Sentara Healthcare includes leaders such as Dennis Matheis (President & Chief Executive Officer), Jessica Lowder (Vice President Chief of Staff To President and Chief Executive Officer), Stewart Nelson (Blue Ridge Region Vice President & Chief Financial Officer) and other senior executives.
    How many executives does Sentara Healthcare have?
    Sentara Healthcare has 10 executives leading key business areas.
    What roles are included in Sentara Healthcare’s leadership team?
    The leadership team of Sentara Healthcare includes roles such as President & Chief Executive Officer, Vice President Chief of Staff To President and Chief Executive Officer, Blue Ridge Region Vice President & Chief Financial Officer, Chief Financial Officer, Market, Hospitals (Virginia Beach), Director, Office of Ambulatory President (Chief of Staff).