Nyack, N.Y. February 11, 2026 – Montefiore Nyack Hospital (MNH) announces the appointment of MNH Board Member, William Shum, to the American Hospital Association (AHA) Committee on Governance (COG). The AHA is a national advocacy organization that represents and serves hospitals, healthcare networks, and the patients and communities they serve. The COG plays a vital role in advising the AHA on advocacy positions, public policy issues, and governance and trusteeship strategies.