National Benefit Fund Executive and Leadership Team

July, 2026

Leadership Overview

National Benefit Fund has 7 executives leading key functions including operations, information technology, finance, technology, staff operations, medical oversight, and association leadership.

Driven by a commitment to comprehensive member support, National Benefit Fund provides a robust suite of benefits, including health coverage, pensions, and training, to healthcare industry workers, enhancing their financial security and professional development.

Leadership Roles at National Benefit Fund

  • Chief Financial Officer - Mercedes Mambru
  • Chief Operating Officer - Bonnie Mallonga
  • President, The Benefit Fund Staff Association - Darlene Coor
  • Chief Information Officer - Charles Ottomanelli
  • Chief Technology Officer - Dave Tonkonow
  • Chief of Staff - Chris Burford
  • Deputy Chief Medical Officer, 1199seiu Benefit Funds - Lela Mayers
  • Mercedes Mambru - Chief Financial Officer

    Mercedes Mambru, the Chief Financial Officer at National Benefit Fund, governs the financial health and strategic fiscal planning for an organization serving 400,000 healthcare industry workers. Mambru directs all financial operations, including budgeting, investment management, and financial reporting, ensuring the long-term sustainability of the Benefit, Pension, Training and Employment, and Child Care Funds. This critical position involves safeguarding assets and optimizing resource allocation to maximize member benefit delivery. Mercedes Mambru's expertise ensures fiscal responsibility and supports the organization's capacity to offer comprehensive health benefits, defined pensions, and extensive training opportunities at little or no cost to members. The Chief Financial Officer's oversight is fundamental to maintaining the financial integrity and operational capacity of the National Benefit Fund.
    Mercedes Mambru

    Bonnie Mallonga - Chief Operating Officer

    Bonnie Mallonga, the Chief Operating Officer at National Benefit Fund, directs the operational framework supporting 400,000 healthcare industry workers and their families. Overseeing the day-to-day execution of benefit delivery, Mallonga ensures the seamless integration of health, pension, and training programs. This leadership role involves optimizing internal processes to enhance member access and satisfaction across the Benefit, Pension, Training and Employment, and Child Care Funds. Mallonga's strategic focus centers on operational efficiency and scalability, directly impacting the Funds' capacity to serve a growing membership. By streamlining administrative functions, Bonnie Mallonga guarantees the reliable provision of comprehensive benefits, reinforcing the organization's commitment to its members' well-being and financial stability.

    Darlene Coor - President, The Benefit Fund Staff Association

    Darlene Coor, the President, The Benefit Fund Staff Association at National Benefit Fund, leads the staff association representing employees who administer benefits for 400,000 healthcare industry workers. Coor advocates for staff interests, fosters professional development, and ensures operational alignment with the Funds' overarching mission. This role involves enhancing staff engagement and supporting the efficient delivery of comprehensive benefits, including health coverage, pensions, and training. Darlene Coor's leadership strengthens the internal capacity of the National Benefit Fund by promoting a cohesive and effective workforce. The President's dedication to staff well-being and operational excellence directly supports the organization's ability to serve its members effectively and maintain its commitment to providing essential support.

    Charles Ottomanelli - Chief Information Officer

    Charles Ottomanelli, the Chief Information Officer at National Benefit Fund, architects the technological infrastructure that underpins the organization's extensive benefit programs. Ottomanelli drives the strategic implementation of information systems, ensuring data integrity and secure access for 400,000 members and their families. This role involves overseeing the development and maintenance of platforms that manage health benefits, pension disbursements, and training records. Charles Ottomanelli's leadership ensures that technological advancements align with the Funds' mission of providing comprehensive support to healthcare industry workers. By enhancing digital capabilities, the Chief Information Officer facilitates efficient member services and robust data management, directly contributing to the operational strength of the National Benefit Fund.

    Dave Tonkonow - Chief Technology Officer

    Dave Tonkonow, the Chief Technology Officer at National Benefit Fund, spearheads the technological innovation and infrastructure development critical to serving 400,000 healthcare industry workers. Tonkonow guides the strategic direction of technology adoption, focusing on enhancing the delivery of comprehensive benefits, including health coverage, pensions, and training programs. This role involves evaluating and implementing cutting-edge solutions to improve system performance, security, and member accessibility. Dave Tonkonow's leadership ensures that the Funds remain at the forefront of technological capabilities, supporting operational efficiency and member engagement. The Chief Technology Officer's vision drives the evolution of the technological landscape, directly supporting the National Benefit Fund's mission to provide robust and accessible support to its membership.

    Chris Burford - Chief of Staff

    Chris Burford, the Chief of Staff at National Benefit Fund, provides strategic support and operational coordination across the organization serving 400,000 healthcare industry workers. Burford facilitates communication and alignment between executive leadership and various departments, ensuring strategic initiatives are effectively implemented. This role involves managing key projects, optimizing internal workflows, and enhancing organizational efficiency to support the delivery of comprehensive benefits. Chris Burford's focus is on driving operational excellence and ensuring that the Funds' mission of providing health benefits, pensions, and training is executed seamlessly. The Chief of Staff plays a pivotal role in translating strategic objectives into actionable plans, directly contributing to the National Benefit Fund's effectiveness and member satisfaction.

    Lela Mayers - Deputy Chief Medical Officer, 1199seiu Benefit Funds

    Lela Mayers, the Deputy Chief Medical Officer, 1199seiu Benefit Funds at National Benefit Fund, provides critical medical oversight and strategic guidance for the health benefit programs serving 400,000 healthcare industry workers. Mayers ensures the quality, accessibility, and appropriateness of healthcare services provided through the Funds, aligning medical policies with member needs and industry best practices. This leadership position involves collaborating with healthcare providers and internal teams to optimize health outcomes and manage healthcare costs effectively. Lela Mayers' expertise is essential in shaping the health benefit offerings, ensuring members receive comprehensive and high-quality care. The Deputy Chief Medical Officer's contributions are vital to the National Benefit Fund's commitment to member well-being and robust health coverage.

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    Frequently Asked Questions Regarding National Benefit Fund Top Executives and Leadership Team

    Who leads National Benefit Fund?
    National Benefit Fund is led by Mercedes Mambru (Chief Financial Officer), along with executives such as Bonnie Mallonga (Chief Operating Officer) and Darlene Coor (President, The Benefit Fund Staff Association).
    Who is part of National Benefit Fund’s executive team?
    The executive team of National Benefit Fund includes leaders such as Mercedes Mambru (Chief Financial Officer), Bonnie Mallonga (Chief Operating Officer), Darlene Coor (President, The Benefit Fund Staff Association) and other senior executives.
    How many executives does National Benefit Fund have?
    National Benefit Fund has 7 executives leading key business areas.
    What roles are included in National Benefit Fund’s leadership team?
    The leadership team of National Benefit Fund includes roles such as Chief Financial Officer, Chief Operating Officer, President, The Benefit Fund Staff Association, Chief Information Officer, Chief Technology Officer.