Arc of Westchester Executive and Leadership Team

May, 2026

Leadership Overview

Arc of Westchester has 5 executives leading key functions including strategy, finance, and board governance.

Dedicated to empowering individuals with intellectual and developmental disabilities, Arc of Westchester drives community inclusion and provides essential support services, fostering independence and enhancing quality of life across New York.

Leadership Roles at Arc of Westchester

  • Chief Executive Officer - Tibi Guzman
  • Executive Director, Chief Executive Officer - Tibisay Guzman
  • Chief Financial Officer - Norman Szymanski
  • President & Board of Directors - Bernard Krooks
  • President - Steven Masket
  • Tibi Guzman - Chief Executive Officer

    Tibi Guzman, the Chief Executive Officer at Arc of Westchester, directs the organization's strategic vision and operational execution. Overseeing all facets of the non-profit's mission, Tibi Guzman ensures the delivery of comprehensive support services for children, teens, and adults with intellectual and developmental disabilities. This leadership role involves fostering key relationships with community stakeholders, government agencies, and funding partners to advance the organization's reach and impact. By championing innovative programs and advocating for the rights of individuals served, the Chief Executive Officer drives continuous improvement and sustainable growth. The focus remains on enhancing the quality of life and promoting independence for all individuals supported by Arc of Westchester.

    Tibisay Guzman - Executive Director, Chief Executive Officer

    Tibisay Guzman, the Executive Director, Chief Executive Officer at Arc of Westchester, spearheads the organization's comprehensive service delivery and strategic development. This dual role encompasses overseeing the day-to-day operations and guiding the long-term vision for supporting individuals with intellectual and developmental disabilities across New York. Tibisay Guzman ensures robust program management, from early intervention for children to lifelong support for adults, aligning all initiatives with the core mission of fostering independence and community integration. The Executive Director, Chief Executive Officer actively engages with the board, staff, and external partners to secure resources and expand the organization's capacity to serve. This leadership position is critical in driving operational excellence and advocating for the needs of the community.

    Norman Szymanski - Chief Financial Officer

    Norman Szymanski, the Chief Financial Officer at Arc of Westchester, manages the organization's fiscal health and financial strategy. Overseeing all financial operations, Norman Szymanski ensures robust budgeting, accurate financial reporting, and effective resource allocation to support the mission of serving individuals with intellectual and developmental disabilities. This critical role involves developing financial models, managing investments, and ensuring compliance with all regulatory requirements. The Chief Financial Officer works closely with other executive leaders to align financial planning with programmatic goals and organizational growth objectives. By maintaining strong financial controls and seeking opportunities for fiscal efficiency, Szymanski safeguards the organization's sustainability and its capacity to deliver essential services across New York.

    Bernard Krooks - President & Board of Directors

    Bernard Krooks, the President & Board of Directors at Arc of Westchester, provides strategic oversight and governance for the organization. Leading the Board of Directors, Bernard Krooks ensures that the organization adheres to its mission of supporting children, teens, and adults with intellectual and developmental disabilities. This pivotal role involves guiding high-level strategic decisions, approving organizational policies, and ensuring fiduciary responsibility. The President & Board of Directors collaborates with the executive leadership team to champion the organization's vision and advocate for its constituents. Krooks's leadership ensures that Arc of Westchester maintains its commitment to fostering independence, promoting community inclusion, and enhancing the quality of life for all individuals served.

    Steven Masket - President

    Steven Masket, the President at Arc of Westchester, directs the strategic initiatives and overall governance of the organization. Presiding over the Board of Directors, Steven Masket ensures that Arc of Westchester effectively fulfills its mission to support individuals with intellectual and developmental disabilities. This leadership position involves setting the organizational direction, approving key policies, and overseeing the organization's financial stewardship. The President works in tandem with the Chief Executive Officer and other senior leaders to drive programmatic excellence and expand the organization's impact across New York. Masket's guidance is instrumental in maintaining the highest standards of service delivery and advocating for the rights and needs of the community.
    Steven Masket

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    Frequently Asked Questions Regarding Arc of Westchester Top Executives and Leadership Team

    Who leads Arc of Westchester?
    Arc of Westchester is led by Tibi Guzman (Chief Executive Officer), along with executives such as Tibisay Guzman (Executive Director, Chief Executive Officer) and Norman Szymanski (Chief Financial Officer).
    Who is part of Arc of Westchester’s executive team?
    The executive team of Arc of Westchester includes leaders such as Tibi Guzman (Chief Executive Officer), Tibisay Guzman (Executive Director, Chief Executive Officer), Norman Szymanski (Chief Financial Officer) and other senior executives.
    How many executives does Arc of Westchester have?
    Arc of Westchester has 5 executives leading key business areas.
    What roles are included in Arc of Westchester’s leadership team?
    The leadership team of Arc of Westchester includes roles such as Chief Executive Officer, Executive Director, Chief Executive Officer, Chief Financial Officer, President & Board of Directors, President.