Geisinger Executive and Leadership Team

July, 2026

Leadership Overview

Geisinger has 10 executives leading key functions including strategy, information technology, finance, human resources, and administration.

Driven by a commitment to patient well-being, Geisinger provides comprehensive health services, pioneering research, and advanced medical education, solidifying its position as a leader in healthcare innovation and delivery.

Leadership Roles at Geisinger

  • President & Chief Executive Officer - Plummer Carey
  • President & Chief Executive Officer - Terry Gilliland
  • Executive Vice President & Chief Financial Officer - Matthew Huff
  • Vice President & Chief Financial Officer (Central & Northwest Regions) - Danielle Cerminaro
  • Chief Information Officer - Edith Hunter
  • Vice President, Information Technology Business Management & Associate Chief Information Officer - Camille Rivera
  • Chief Human Resources Officer - Richard Merkle
  • Chief Human Resources Officer - Brion Lieberman
  • Associate Chief Technology Officer - Ryan Brewington
  • Chief Administrative Officer - Tracey Wolfe
  • Plummer Carey - President & Chief Executive Officer

    Plummer Carey, the President & Chief Executive Officer at Geisinger, directs the overarching strategic vision and operational execution for the entire health system. Carey's leadership ensures alignment across all divisions, from patient care services and insurance offerings to medical education and groundbreaking research initiatives. This executive guides the organization's response to evolving healthcare landscapes, focusing on enhancing patient outcomes and operational efficiency. The role involves critical decision-making regarding resource allocation and long-term growth strategies, directly impacting Geisinger's market presence and commitment to innovation. Carey's oversight extends to fostering a culture of excellence and continuous improvement throughout the organization, ensuring Geisinger remains at the forefront of healthcare delivery and technological advancement. Plummer Carey drives the organization's mission to improve the health of the community it serves through integrated, patient-centered care.

    Terry Gilliland - President & Chief Executive Officer

    Terry Gilliland, the President & Chief Executive Officer at Geisinger, spearheads the strategic direction and comprehensive operational management of the integrated health system. Gilliland's leadership encompasses the full spectrum of Geisinger's services, including its extensive network of primary care providers, specialists, hospitals, trauma centers, and insurance divisions. This executive is pivotal in advancing Geisinger's mission through innovative approaches in medical education, research, and the deployment of proprietary technologies like MyCode. Terry Gilliland ensures that the organization consistently delivers high-quality, patient-centered care while navigating the complexities of the healthcare industry. The role demands a keen focus on financial stewardship, clinical excellence, and fostering a culture of innovation to enhance community health and well-being. Gilliland's strategic oversight guarantees Geisinger's continued leadership in healthcare transformation.
    Terry Gilliland

    Matthew Huff - Executive Vice President & Chief Financial Officer

    Matthew Huff, the Executive Vice President & Chief Financial Officer at Geisinger, commands the financial strategy and fiscal operations for the entire health system. Huff's responsibilities include managing all financial planning, budgeting, accounting, and investment activities, ensuring the long-term financial health and sustainability of Geisinger. This executive plays a critical role in optimizing revenue cycles, controlling costs across all operational units, and securing funding for strategic initiatives, including expansion of services and research endeavors. Matthew Huff provides essential financial insights that guide executive decision-making, supporting Geisinger's commitment to providing accessible, high-quality healthcare. The role involves close collaboration with other C-suite leaders to align financial resources with the organization's mission and strategic goals, ensuring robust financial stewardship across all Geisinger's hospitals, insurance services, and educational programs. Huff's leadership ensures financial integrity and drives economic growth.
    Matthew Huff

    Danielle Cerminaro - Vice President & Chief Financial Officer (Central & Northwest Regions)

    Danielle Cerminaro, the Vice President & Chief Financial Officer (Central & Northwest Regions) at Geisinger, directs financial operations and strategic fiscal planning for specific geographic areas within the health system. Cerminaro's responsibilities include overseeing budgeting, financial reporting, and resource allocation for hospitals and clinics in the Central and Northwest regions, ensuring financial performance aligns with organizational goals. This executive works to optimize financial performance by identifying cost-saving opportunities and revenue enhancement strategies tailored to the unique market dynamics of these regions. Danielle Cerminaro plays a key role in supporting local leadership teams with financial expertise, ensuring operational efficiency and fiscal responsibility. The position is vital for maintaining Geisinger's financial stability and its commitment to providing accessible, high-quality healthcare services across all its service areas. Cerminaro's leadership ensures localized financial success.

    Edith Hunter - Chief Information Officer

    Edith Hunter, the Chief Information Officer at Geisinger, architects and directs the organization's comprehensive information technology strategy and infrastructure. Hunter's purview includes overseeing all aspects of technology operations, ensuring the seamless integration of digital solutions across Geisinger's diverse service lines, from patient care and insurance to research and education. This executive is responsible for safeguarding sensitive patient data, enhancing cybersecurity measures, and driving digital transformation initiatives that improve operational efficiency and patient experience. Edith Hunter champions the adoption of advanced technologies, including those supporting Geisinger's MyCode technology, to advance medical research and personalized patient care. The role demands a strategic focus on leveraging technology to support Geisinger's mission of improving community health and maintaining a competitive edge in the healthcare sector. Hunter's leadership ensures robust, scalable, and secure IT systems are in place to support all organizational objectives.

    Camille Rivera - Vice President, Information Technology Business Management & Associate Chief Information Officer

    Camille Rivera, the Vice President, Information Technology Business Management & Associate Chief Information Officer at Geisinger, supports the strategic alignment and effective management of information technology resources. Rivera's focus centers on bridging the gap between IT capabilities and business objectives, ensuring technology investments deliver maximum value across Geisinger's diverse operations, including patient care, insurance, and research. This role involves overseeing IT project portfolio management, vendor relations, and ensuring IT services meet the evolving needs of various departments. Camille Rivera collaborates closely with the Chief Information Officer to enhance IT governance, optimize operational workflows, and drive digital innovation. The position is crucial for ensuring that Geisinger's technology infrastructure effectively supports its mission to improve community health and advance medical science. Rivera's expertise ensures efficient resource allocation and strategic deployment of IT solutions.

    Richard Merkle - Chief Human Resources Officer

    Richard Merkle, the Chief Human Resources Officer at Geisinger, leads the comprehensive human capital strategy and operations for the entire organization. Merkle's oversight encompasses talent acquisition, employee relations, compensation and benefits, organizational development, and workforce planning, ensuring Geisinger attracts, retains, and develops a high-performing workforce. This executive is instrumental in fostering a positive and inclusive workplace culture that supports Geisinger's mission of patient care, research, and education. Richard Merkle drives initiatives aimed at enhancing employee engagement, promoting professional growth, and ensuring compliance with all labor laws and regulations. The role requires strategic collaboration with senior leadership to align HR policies and programs with the organization's overall business objectives and values. Merkle's leadership ensures Geisinger's workforce is equipped and motivated to deliver exceptional healthcare services.

    Brion Lieberman - Chief Human Resources Officer

    Brion Lieberman, the Chief Human Resources Officer at Geisinger, directs the strategic development and execution of human resources functions across the health system. Lieberman's responsibilities include shaping policies and programs related to talent management, employee engagement, organizational culture, and workforce development to support Geisinger's mission. This executive focuses on cultivating a supportive and dynamic work environment that attracts and retains top talent within the healthcare sector. Brion Lieberman collaborates with executive leadership to ensure HR initiatives are aligned with Geisinger's strategic goals, driving operational excellence and fostering a culture of continuous improvement. The role is critical in managing employee relations, ensuring compliance, and implementing innovative HR practices that enhance the overall employee experience and contribute to the organization's success in providing comprehensive healthcare services. Lieberman's leadership strengthens the employee foundation.
    Brion Lieberman

    Ryan Brewington - Associate Chief Technology Officer

    Ryan Brewington, the Associate Chief Technology Officer at Geisinger, supports the strategic planning and implementation of technology solutions across the organization. Brewington's role involves assisting the Chief Information Officer in overseeing the development and maintenance of Geisinger's technological infrastructure, ensuring it effectively supports patient care, research, and administrative functions. This executive contributes to the evaluation and adoption of new technologies that enhance operational efficiency, data security, and patient engagement. Ryan Brewington plays a part in managing IT projects, optimizing system performance, and ensuring technological alignment with Geisinger's broader mission to improve community health. The position is crucial for maintaining a robust and innovative technology environment that underpins all aspects of Geisinger's healthcare services and research initiatives. Brewington's technical expertise drives system advancement.

    Tracey Wolfe - Chief Administrative Officer

    Tracey Wolfe, the Chief Administrative Officer at Geisinger, oversees a broad range of administrative functions essential to the efficient operation of the health system. Wolfe's responsibilities include managing key support services, optimizing operational workflows, and ensuring seamless coordination across various departments to enhance overall organizational effectiveness. This executive plays a critical role in implementing strategic initiatives, driving process improvements, and ensuring that administrative operations align with Geisinger's mission of providing high-quality healthcare and advancing medical research. Tracey Wolfe collaborates closely with other senior leaders to streamline operations, manage resources effectively, and foster a productive work environment. The position is vital for maintaining the operational integrity and strategic execution of Geisinger's comprehensive healthcare services, contributing significantly to its reputation for excellence and innovation in patient care. Wolfe's leadership ensures smooth organizational functioning.

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    Frequently Asked Questions Regarding Geisinger Top Executives and Leadership Team

    Who leads Geisinger?
    Geisinger is led by Plummer Carey (President & Chief Executive Officer), along with executives such as Terry Gilliland (President & Chief Executive Officer) and Matthew Huff (Executive Vice President & Chief Financial Officer).
    Who is part of Geisinger’s executive team?
    The executive team of Geisinger includes leaders such as Plummer Carey (President & Chief Executive Officer), Terry Gilliland (President & Chief Executive Officer), Matthew Huff (Executive Vice President & Chief Financial Officer) and other senior executives.
    How many executives does Geisinger have?
    Geisinger has 10 executives leading key business areas.
    What roles are included in Geisinger’s leadership team?
    The leadership team of Geisinger includes roles such as President & Chief Executive Officer, President & Chief Executive Officer, Executive Vice President & Chief Financial Officer, Vice President & Chief Financial Officer (Central & Northwest Regions), Chief Information Officer.