Montefiore Nyack Executive and Leadership Team

July, 2026

Leadership Overview

Montefiore Nyack has 4 executives leading key functions including strategy, medical operations, and administration.

Dedicated to advancing patient care, Montefiore Nyack operates as a vital medical and surgical hospital, upholding a philosophy of compassionate and innovative healthcare delivery within the New York region.

Leadership Roles at Montefiore Nyack

  • President & Chief Executive Officer - Mark Geller
  • President - Michal Tracz
  • Vice President & Chief Medical Officer - Anthony Matejicka
  • Cim - Liji Joseph
  • Mark Geller - President & Chief Executive Officer

    Mark Geller, the President & Chief Executive Officer at Montefiore Nyack, directs the overall strategic vision and operational execution for the hospital. Geller oversees all major departments, ensuring alignment with the institution's mission of providing high-quality medical and surgical care. This leadership role involves driving financial performance, fostering community partnerships, and championing advancements in patient services. By setting the organizational direction, Mark Geller ensures Montefiore Nyack maintains its commitment to excellence and innovation in healthcare delivery. The President & Chief Executive Officer's purview extends to all aspects of hospital management, from clinical outcomes to administrative efficiency, solidifying the hospital's position as a leading healthcare provider in Nyack, New York.

    Michal Tracz - President

    Michal Tracz, the President at Montefiore Nyack, drives strategic initiatives and operational excellence across the hospital's diverse functions. Tracz oversees key administrative and departmental operations, ensuring efficient resource allocation and the effective execution of the hospital's strategic objectives. This leadership position is crucial for maintaining the hospital's commitment to providing comprehensive medical and surgical care. By focusing on operational efficiency and strategic growth, Michal Tracz supports Montefiore Nyack's mission to serve the community with advanced healthcare solutions. The President's role encompasses fostering interdepartmental collaboration, enhancing patient satisfaction, and ensuring the hospital's continued success and reputation as a leading care provider in the region.

    Anthony Matejicka - Vice President & Chief Medical Officer

    Anthony Matejicka, the Vice President & Chief Medical Officer at Montefiore Nyack, leads the clinical strategy and medical staff operations, ensuring the highest standards of patient care. Matejicka is responsible for the quality of medical services, physician credentialing, and the implementation of evidence-based medical practices across all departments. This executive function involves direct oversight of clinical departments, promoting a culture of safety, and enhancing patient outcomes. By guiding the medical team, Anthony Matejicka ensures that Montefiore Nyack consistently delivers exceptional medical and surgical treatment. The Vice President & Chief Medical Officer's focus remains on advancing clinical excellence, managing healthcare resources effectively, and fostering a collaborative environment for medical professionals within the hospital's New York setting.

    Liji Joseph - Cim

    Liji Joseph, the Cim at Montefiore Nyack, manages critical information systems and technology infrastructure that support the hospital's extensive medical and surgical operations. Joseph ensures the seamless integration and functionality of all digital platforms, safeguarding patient data and enhancing operational workflows. This role is pivotal in maintaining the hospital's technological edge, enabling efficient patient care delivery and administrative processes. By overseeing the implementation of new technologies, Liji Joseph contributes directly to the hospital's capacity for innovation and its ability to adapt to evolving healthcare demands. The Cim's responsibilities include maintaining system integrity, driving digital transformation initiatives, and ensuring compliance with all relevant data security regulations, thereby supporting Montefiore Nyack's core mission.

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    Frequently Asked Questions Regarding Montefiore Nyack Top Executives and Leadership Team

    Who leads Montefiore Nyack?
    Montefiore Nyack is led by Mark Geller (President & Chief Executive Officer), along with executives such as Michal Tracz (President) and Anthony Matejicka (Vice President & Chief Medical Officer).
    Who is part of Montefiore Nyack’s executive team?
    The executive team of Montefiore Nyack includes leaders such as Mark Geller (President & Chief Executive Officer), Michal Tracz (President), Anthony Matejicka (Vice President & Chief Medical Officer) and other senior executives.
    How many executives does Montefiore Nyack have?
    Montefiore Nyack has 4 executives leading key business areas.
    What roles are included in Montefiore Nyack’s leadership team?
    The leadership team of Montefiore Nyack includes roles such as President & Chief Executive Officer, President, Vice President & Chief Medical Officer, Cim.