Geisinger Executive and Leadership Team

Plummer Carey, the President & Chief Executive Officer at Geisinger, directs the overarching strategic vision for the entire health system. Plummer Carey architects long-term growth initiatives that integrate primary care, trauma centers, and insurance services into a unified patient-centered model. By aligning clinical excellence with research objectives, the President & Chief Executive Officer ensures that the organization maintains a competitive edge in the Pennsylvania healthcare market. This leadership role involves constant collaboration with the Board to refine medical education programs and expand the reach of MyCode technology. Through rigorous oversight of hospital performance and resource allocation, the President & Chief Executive Officer drives operational efficiency across all regional facilities. Ultimately, the executive secures the financial and clinical future of the system by fostering innovation in care delivery and maintaining high standards of patient safety throughout the entire network.

Terry Gilliland, the President & Chief Executive Officer at Geisinger, manages the complex operational landscape of a multi-faceted healthcare provider. Terry Gilliland focuses on scaling clinical services and enhancing the integration of trauma centers to meet the evolving needs of the population. By prioritizing the expansion of specialized medical care, the President & Chief Executive Officer strengthens the system's capacity to handle high-acuity patient cases. This role requires deep engagement with medical staff to optimize care pathways and improve patient outcomes. The President & Chief Executive Officer also champions the adoption of advanced research initiatives, ensuring that clinical practice remains at the forefront of medical science. Through strategic partnerships and a focus on regional health equity, the executive drives the mission of providing accessible, high-quality care across the entire service area while maintaining operational excellence in every department.

Danielle Cerminaro, the Vice President & Chief Financial Officer (Central & Northwest Regions) at Geisinger, manages the fiscal health and budgetary planning for specific geographic territories. Danielle Cerminaro architects financial strategies that balance the costs of operating trauma centers and primary care clinics with the revenue generated by insurance services. By monitoring regional financial performance, the Vice President & Chief Financial Officer (Central & Northwest Regions) identifies opportunities for cost savings and revenue growth. This role involves collaborating with regional leadership to allocate capital for facility upgrades and new medical equipment. The Vice President & Chief Financial Officer (Central & Northwest Regions) drives the financial planning process, ensuring that resources are directed toward high-impact clinical programs. Through rigorous financial oversight, the executive secures the economic stability of the central and northwest operations, enabling the system to continue providing essential healthcare services to the local population.

Megan Brosious, the Chief Operating Officer at Geisinger, manages the daily execution of clinical and administrative functions across the hospital network. Megan Brosious optimizes the workflow within trauma centers and primary care clinics to ensure maximum patient throughput and service quality. By streamlining supply chain logistics and facility management, the Chief Operating Officer reduces operational overhead while maintaining high standards of care. This role requires constant interaction with department heads to align staffing levels with patient demand. The Chief Operating Officer drives initiatives that improve the efficiency of medical education and research facilities, ensuring that operational resources support the system's academic goals. Through the implementation of lean management principles, the executive enhances the overall performance of the organization, ensuring that every facility operates at peak capacity to serve the needs of the regional population.

Edith Hunter, the Chief Information Officer at Geisinger, oversees the digital transformation of the entire health system. Edith Hunter architects robust data architectures that support the integration of MyCode technology and electronic health records across all hospitals. By managing the cybersecurity posture and data integrity of the organization, the Chief Information Officer ensures that patient information remains secure while remaining accessible to clinical teams. This leadership role involves coordinating with other C-suite members to implement scalable software solutions that improve diagnostic accuracy and administrative efficiency. The Chief Information Officer drives the adoption of new digital tools that streamline the patient experience from primary care visits to complex surgical procedures. Through the continuous modernization of IT infrastructure, the executive supports the broader mission of delivering data-driven, high-quality healthcare to the communities served by the organization.

Brion Lieberman, the Chief Human Resources Officer at Geisinger, directs the talent acquisition and workforce development strategies for the entire health system. Brion Lieberman architects programs that attract top-tier medical professionals, researchers, and administrative staff to the organization. By fostering a culture of continuous learning and professional development, the Chief Human Resources Officer ensures that the workforce remains equipped to handle the complexities of modern healthcare. This leadership role involves managing labor relations, compensation structures, and employee engagement initiatives that support the overall mission of the system. The Chief Human Resources Officer drives diversity and inclusion efforts to ensure that the staff reflects the communities served. Through the strategic alignment of human capital with organizational goals, the executive supports the long-term sustainability and growth of the health system, ensuring that every department has the talent required to deliver exceptional care.

Daniel Bennett, the Interim Chief Information Officer at Geisinger, leads the immediate technical operations and digital strategy for the health system. Daniel Bennett architects short-term improvements to the existing IT infrastructure to ensure seamless connectivity between hospitals and research centers. By managing the transition of legacy systems to modern cloud-based platforms, the Interim Chief Information Officer enhances the reliability of patient data management. This leadership role involves stabilizing critical software applications and addressing urgent cybersecurity needs to protect sensitive health information. The Interim Chief Information Officer drives the implementation of new diagnostic tools that assist clinicians in providing faster, more accurate care. Through the coordination of technical teams, the executive ensures that the digital backbone of the organization remains functional and efficient, supporting the ongoing delivery of high-quality medical services across the entire network.

Ryan Brewington, the Associate Chief Technology Officer at Geisinger, manages the development and deployment of advanced technological solutions within the health system. Ryan Brewington architects the integration of emerging technologies, such as artificial intelligence and machine learning, into the clinical workflow to improve patient diagnostics. By overseeing the technical teams responsible for software development, the Associate Chief Technology Officer ensures that all digital tools meet the rigorous standards of the healthcare industry. This role involves collaborating with the Chief Information Officer to align technology investments with the long-term strategic goals of the organization. The Associate Chief Technology Officer drives the innovation agenda, focusing on projects that enhance the efficiency of MyCode technology and other research initiatives. Through the application of cutting-edge technical expertise, the executive supports the system's commitment to providing innovative, high-quality care to all patients.

William Bellando, the Executive Vice President & Chief Information Officer at Geisinger, directs the comprehensive digital strategy and information technology governance for the entire organization. William Bellando architects the enterprise-wide data strategy that supports clinical research, insurance operations, and hospital management. By overseeing the implementation of large-scale digital health initiatives, the Executive Vice President & Chief Information Officer ensures that the system remains a leader in health technology. This leadership role involves managing the relationship between IT and clinical departments to ensure that technology solutions directly improve patient outcomes. The Executive Vice President & Chief Information Officer drives the adoption of interoperable systems that allow for seamless data sharing across the entire network. Through the strategic management of the IT budget and personnel, the executive ensures that the organization possesses the technological capabilities required to thrive in a competitive healthcare environment.

Sean Koenig, the Chief Applications Officer & Associate Chief Information Officer at Geisinger, manages the lifecycle and performance of all clinical and administrative software applications. Sean Koenig architects the optimization of electronic health record systems to ensure that clinicians have efficient access to patient data. By overseeing the application support teams, the Chief Applications Officer & Associate Chief Information Officer ensures that all software tools remain functional and compliant with healthcare regulations. This role involves working closely with medical staff to identify software needs and implement user-friendly solutions that reduce administrative burden. The Chief Applications Officer & Associate Chief Information Officer drives the integration of specialized applications that support trauma centers and primary care services. Through the continuous improvement of software performance, the executive enhances the overall operational efficiency of the health system, allowing staff to focus on delivering exceptional patient care.