Sentara Healthcare Executive and Leadership Team

Dennis Matheis, the President & Chief Executive Officer at Sentara Healthcare, directs the overall strategic vision and operational execution for the integrated healthcare system. Matheis oversees the comprehensive network of facilities, including imaging centers, assisted living centers, outpatient facilities, physical therapy clinics, hospitals, and home health and hospice services. This leadership role involves guiding the organization's expansion and service delivery, ensuring alignment with the not-for-profit mission. Matheis drives initiatives to enhance patient care quality and accessibility across all Sentara's offerings, including its medical transport and air ambulance services. By focusing on innovation and operational efficiency, Dennis Matheis ensures Sentara Healthcare maintains its position as a leading provider of health services, impacting communities across Virginia and beyond through strategic growth and a steadfast commitment to patient well-being.

Kathy Tonsgard, the Chief Financial Officer at Sentara Healthcare, manages the financial health and strategic fiscal planning for the entire integrated healthcare system. Tonsgard oversees all financial operations, including budgeting, forecasting, revenue cycle management, and capital allocation across Sentara's diverse entities such as hospitals, outpatient facilities, and assisted living centers. This critical role ensures the financial sustainability of the not-for-profit organization, enabling continued investment in patient care and infrastructure. Tonsgard's financial oversight extends to managing the fiscal aspects of medical transport and air ambulance services, ensuring efficient resource utilization. By maintaining robust financial controls and driving fiscal discipline, Kathy Tonsgard supports Sentara Healthcare's mission to provide accessible and high-quality healthcare services, safeguarding the organization's long-term viability and growth.

Andrew Markow, the Chief Financial Officer, Market, Hospitals (Virginia Beach) at Sentara Healthcare, manages the financial operations and strategic fiscal planning specifically for the Virginia Beach market's hospital facilities. Markow oversees budgeting, financial reporting, revenue cycle management, and capital expenditure for these key Sentara Healthcare locations. This specialized role ensures the financial viability and operational efficiency of the hospitals in the Virginia Beach region, supporting the delivery of high-quality patient care. Andrew Markow's financial acumen is crucial in navigating the complex healthcare landscape, driving profitability, and optimizing resource allocation within the hospital setting. By maintaining rigorous financial oversight, Markow directly contributes to Sentara Healthcare's mission of providing accessible and excellent medical services to the Virginia Beach community.

Stewart Nelson, the Blue Ridge Region Vice President & Chief Financial Officer at Sentara Healthcare, oversees the financial strategy and operational performance for the healthcare system within the Blue Ridge region. Nelson manages all financial aspects, including budgeting, revenue cycle management, and capital planning for Sentara's facilities in this specific geographic area. This leadership position ensures the financial health and sustainability of Sentara Healthcare's operations in the Blue Ridge region, supporting the delivery of comprehensive medical services. Stewart Nelson's financial expertise is critical in optimizing resource allocation and driving efficiency across hospitals, outpatient facilities, and other Sentara entities within the region. By maintaining strong financial stewardship, Nelson contributes significantly to Sentara Healthcare's mission of providing accessible and high-quality care to the communities served.

Kathryn Markham, the Director, Office of Ambulatory President (Chief of Staff) at Sentara Healthcare, provides essential operational and strategic support to the President overseeing ambulatory services. Markham coordinates key initiatives, manages projects, and facilitates communication within the ambulatory care division, which includes imaging centers, outpatient facilities, and physical therapy clinics. This role is pivotal in ensuring the efficient and effective delivery of care across Sentara's outpatient network. Kathryn Markham plays a crucial part in translating strategic objectives into operational realities, driving improvements in patient access and service delivery. By optimizing workflows and fostering collaboration, Markham enhances the performance of Sentara Healthcare's ambulatory operations, directly supporting the organization's commitment to accessible and comprehensive healthcare.

George Jordan, the Chief of Staff at Sentara Healthcare, provides direct support and strategic counsel to the executive leadership team, facilitating the smooth operation of the integrated healthcare system. Jordan manages key initiatives, coordinates cross-departmental projects, and ensures effective communication across Sentara's extensive network of hospitals, outpatient facilities, and ancillary services. This role involves streamlining executive decision-making processes and driving the implementation of strategic priorities. George Jordan plays a vital part in translating the organizational vision into actionable plans, ensuring that all departments, from medical transport to home health, operate in concert with the company's mission. By optimizing executive workflow and fostering collaboration, Jordan enhances the overall effectiveness and responsiveness of Sentara Healthcare's leadership.

Thomas Guirkin, the Interim Vice President and Chief Marketing Officer at Sentara Healthcare, directs the strategic marketing and brand management initiatives for the integrated healthcare system. Guirkin oversees the development and execution of campaigns designed to enhance Sentara's market presence and communicate its comprehensive range of services, including hospitals, imaging centers, and outpatient facilities. This role focuses on strengthening community engagement and patient acquisition through targeted outreach and brand storytelling. Thomas Guirkin leads efforts to articulate the value proposition of Sentara's offerings, ensuring consistent messaging across all communication channels. By driving innovative marketing strategies, Guirkin supports the organization's growth objectives and reinforces Sentara Healthcare's commitment to providing accessible, high-quality care to the communities it serves.

Kristyn Greifer, the Senior Vice President, Chief Marketing Officer Sentara Health Plans at Sentara Healthcare, leads the marketing and brand strategy specifically for Sentara's health insurance division. Greifer focuses on developing and implementing comprehensive marketing plans to drive member acquisition, retention, and engagement for Sentara Health Plans. This involves understanding market dynamics and tailoring messaging to diverse member populations across the healthcare system's service areas. Kristyn Greifer oversees all aspects of marketing communications, digital presence, and promotional activities related to the health plans, ensuring alignment with the overall Sentara Healthcare mission. By enhancing the visibility and perceived value of Sentara Health Plans, Greifer contributes significantly to the organization's market competitiveness and its ability to serve the healthcare needs of its members.

Karyn Pettett, the Chief of Staff To CISO. Director - Cyber Execution and Operations at Sentara Healthcare, directs the execution and operational management of cybersecurity initiatives across the integrated healthcare system. Pettett works closely with the Chief Information Security Officer (CISO) to implement robust security strategies, ensuring the protection of sensitive patient data and critical IT infrastructure. This role involves overseeing the operational deployment of cybersecurity measures and driving the execution of cyber defense protocols. Karyn Pettett is instrumental in managing the day-to-day operations of the cybersecurity team, coordinating incident response, and ensuring compliance with relevant regulations. By focusing on proactive cyber defense and efficient operational execution, Pettett safeguards Sentara Healthcare's digital assets and maintains patient trust.

Bertram Reese, the Senior Vice President and Chief Information Officer at Sentara Healthcare, directs the organization's information technology strategy and infrastructure. Reese oversees the development and implementation of all technology solutions, ensuring robust and secure systems that support Sentara's integrated healthcare operations, including hospitals, imaging centers, and outpatient facilities. This critical role involves managing IT operations, driving digital transformation, and enhancing the technological capabilities that underpin patient care and administrative functions. Bertram Reese leads initiatives to leverage technology for improved operational efficiency, data analytics, and patient engagement. By ensuring the reliability and advancement of Sentara Healthcare's IT systems, Reese plays a pivotal role in the organization's ability to deliver innovative and accessible healthcare services.