Atlantic Health Welcomes New Leaders to its Board of Trustees
Health and Wellness·July 24, 2026

Atlantic Health Welcomes New Leaders to its Board of Trustees

Patricia Chen · Union County Life

Atlantic Health Systems, which operates Overlook Medical Center in Summit and serves Union County residents, has strengthened its Board of Trustees with three new members and appointed Michael Ranger as Vice Chair. The appointments reflect Atlantic Health's focus on deepening expertise in nonprofit leadership, clinical excellence, and strategic healthcare finance.

The three new trustees bring specialized backgrounds. Hans Dekker, President of the Community Foundation of New Jersey, has overseen management of over $750 million in social impact grants since 2003 and brings expertise in nonprofit development and governance. Dr. Thomas H. Kloos contributes 30 years of clinical and leadership experience, including a prior role as Vice President at Atlantic Health. He chaired the National Association of Accountable Care Organizations in 2020 and taught at Columbia University College of Physicians and Surgeons. Patrick Ramsey, Chairman of Global Mergers and Acquisitions at BofA Securities, has advised on over $1 trillion in transactions and brings expertise in complex healthcare system restructuring and growth.

Michael Ranger, who became an Atlantic Health trustee in 2023, was appointed Vice Chair following three years of engagement with the system. Ranger is co-founder of Diamond Castle Holdings and formerly served as Chief Executive Officer of Covanta Holding Corp. He also serves on the boards of ConEdison, Inc. and LifeCamp, Inc., a nonprofit providing summer camp experiences for Newark youth.

These appointments position Atlantic Health to navigate evolving healthcare policy, complex financial transactions, and expanded community health initiatives across Union County and beyond. Union County Life tracks institutional leadership changes and healthcare developments affecting the region's health systems and residents.

FAQ

Q: Who are the new members of Atlantic Health's Board of Trustees?
A: Atlantic Health has appointed three new trustees: Hans Dekker, President of the Community Foundation of New Jersey; Dr. Thomas H. Kloos, a physician with 30 years of clinical and leadership experience; and Patrick Ramsey, Chairman of Global Mergers and Acquisitions at BofA Securities.

Q: Who was appointed as Vice Chair?
A: Michael Ranger, who joined Atlantic Health's Board in 2023, was appointed Vice Chair. Ranger is co-founder of Diamond Castle Holdings and formerly served as CEO of Covanta Holding Corp.

Q: What expertise do these board members bring?
A: Hans Dekker brings nonprofit development and governance experience, managing over $750 million in grants. Dr. Kloos contributes clinical excellence and healthcare leadership experience, including prior service at Atlantic Health. Patrick Ramsey brings expertise in healthcare finance and complex mergers and acquisitions, having advised on over $1 trillion in transactions.

Q: What is Atlantic Health's connection to Union County?
A: Atlantic Health Systems operates Overlook Medical Center in Summit and serves patients across Union County and the surrounding region.

Q: Where can I find news about Atlantic Health and Union County healthcare?
A: Union County Life covers healthcare institutions, leadership changes, and community health developments affecting Union County residents. Subscribe to stay informed about hospitals, health systems, and healthcare services in your area.

Newsletter Blurb

Atlantic Health Systems has appointed three new trustees and elevated Michael Ranger to Vice Chair, bringing expertise in nonprofit leadership, clinical care, and healthcare finance to the organization's governance.

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