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Geisinger becomes the first member of Risant Health

Executive vice president and chief operating officer joined Geisinger in 1976


DANVILLE, PA -- Geisinger Health System Executive Vice President and Chief Operating Officer Frank J. Trembulak announced today his intention to retire in August.

“Frank is a well-respected and accomplished leader who has played a major role in Geisinger’s growth and accomplishments over the past 40 years and serves as a trusted advisor and colleague,” said Geisinger President and Chief Executive Officer David T. Feinberg, M.D., MBA. “We owe him a huge debt of gratitude for all that he does for Geisinger, healthcare and the community.”

Trembulak serves as executive vice president of the Geisinger Foundation, senior vice president and treasurer of the various Geisinger entities, and has served as a member of the Geisinger Health Plan, Geisinger Indemnity Insurance Company and Geisinger Quality Options Boards of Directors since 1985. He came to Geisinger in 1976 as manager of internal audit, and progressed through various leadership positions, including direct administrative responsibility for many of Geisinger’s affiliates.

“Geisinger has grown considerably over the past 40 years and has developed innovative approaches to many of the challenges facing healthcare,” said Trembulak. “I am thankful to have been associated with Geisinger for a substantial portion of its history of enhancing healthcare for the people and communities we serve.”

His professional memberships have included the Hospital and Health System Association of Pennsylvania (HAP), the Pennsylvania Healthcare Quality Alliance (PHCQA), Susquehanna University Partners (Sigmund Weis School of Business), the Pennsylvania Chamber of Business and Industry (PCB&I), and the Healthcare Financial Management Association. He is the past chairman of the PCB&I and a member of various board committees; a prior member and chairman of PHCQA; a board vice chairman and chairman of the Property and Finance Committee of Susquehanna University; past chairman of the Certification Commission for Healthcare Information Technology board of trustees; past chairman of the HAP board of directors; and past director of the National Alliance for Health Information Technology. Active in a number of community and civic organizations, he was also a director of the Maria Joseph Manor CCRC in Danville for many years. 

About Geisinger
Geisinger is among the nation’s leading providers of value-based care, serving 1.2 million people in urban and rural communities across Pennsylvania. Founded in 1915 by philanthropist Abigail Geisinger, the non-profit system generates $10 billion in annual revenues across 134 care sites - including 10 hospital campuses, and Geisinger Health Plan, with 600,000 members in commercial and government plans. The Geisinger College of Health Sciences educates more than 5,000 medical professionals annually and conducts more than 1,400 clinical research studies. With 26,000 employees, including 1,600 employed physicians, Geisinger is among Pennsylvania’s largest employers with an estimated economic impact of $14 billion to the state’s economy. On March 31, 2024, Geisinger became the first member of Risant Health, a new nonprofit charitable organization created to expand and accelerate value-based care across the country.  Learn more at or connect with us on Facebook, Instagram, LinkedIn and X.

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