Phoenix House Executive and Leadership Team

June, 2026

Leadership Overview

Phoenix House has 8 executives leading key functions including strategy, finance, operations, legal, technology, and medical services.

Driven by a commitment to healing, Phoenix House provides comprehensive substance abuse treatment, empowering individuals and communities to overcome dependency and achieve lasting recovery.

Leadership Roles at Phoenix House

  • Chief Executive Officer - Mark Howard
  • President & Chief Executive Officer - Ann-Marie Foster
  • Chief Financial Officer - Kevin Kirfhoff
  • Chief Operating Officer - Gerald Sullivan
  • General Counsel & Chief Operating Officer - Mark White
  • Chief Operating Officer & Chief Technology Officer - David Brown
  • President - David Thomas
  • Chief Medical Officer - Kristine Torres-Lockhart
  • Mark Howard - Chief Executive Officer

    Mark Howard, the Chief Executive Officer at Phoenix House, directs the organization's overarching strategy and operational framework. Howard ensures the nonprofit's mission to combat substance abuse is effectively executed across all service areas. This leadership involves guiding strategic partnerships and resource allocation to maximize impact on individuals, families, and communities affected by dependency. Howard's focus remains on advancing the organization's reach and efficacy in rehabilitation services. The Chief Executive Officer's role is central to maintaining Phoenix House's position as a leading rehabilitation provider. Howard drives the long-term vision for program development and organizational sustainability. This executive guides the integration of innovative treatment modalities. The Chief Executive Officer's oversight ensures adherence to the highest standards of care and ethical practice. Howard's leadership cultivates an environment of continuous improvement and dedication to client success. The Chief Executive Officer's strategic direction supports expansion into new regions and service offerings. Howard champions initiatives that enhance community engagement and support networks.

    Ann-Marie Foster - President & Chief Executive Officer

    Ann-Marie Foster, the President & Chief Executive Officer at Phoenix House, spearheads the organization's strategic direction and operational execution. Foster's leadership ensures Phoenix House effectively serves individuals, families, and communities impacted by substance abuse. This role involves driving programmatic innovation and fostering strong relationships with stakeholders. Ann-Marie Foster oversees the integration of comprehensive rehabilitation services, aiming to achieve lasting recovery for clients. The President & Chief Executive Officer's responsibilities include championing the organization's mission and expanding its impact. Foster guides the development of new initiatives and partnerships to enhance treatment accessibility. This executive ensures operational efficiency and fiscal responsibility across all departments. Ann-Marie Foster's vision propels Phoenix House forward in its commitment to combating addiction. The President & Chief Executive Officer's influence extends to shaping public perception and advocating for policy changes. Foster's dedication is critical to maintaining the organization's reputation for excellence in care. Ann-Marie Foster's strategic oversight supports the growth and sustainability of Phoenix House's vital services.
    Ann-Marie Foster

    Kevin Kirfhoff - Chief Financial Officer

    Kevin Kirfhoff, the Chief Financial Officer at Phoenix House, manages the organization's financial health and strategic fiscal planning. Kirfhoff oversees all financial operations, including budgeting, accounting, and financial reporting, ensuring fiscal integrity and sustainability. This role is critical for allocating resources effectively to support Phoenix House's mission of substance abuse rehabilitation. Kevin Kirfhoff's expertise ensures compliance with financial regulations and best practices for nonprofit organizations. The Chief Financial Officer's responsibilities include developing financial strategies that enable program expansion and service enhancement. Kirfhoff works closely with other executives to align financial goals with organizational objectives. This executive provides critical financial insights to guide decision-making across departments. Kevin Kirfhoff's stewardship of financial resources is paramount to Phoenix House's ability to serve its communities. The Chief Financial Officer's oversight supports long-term growth and operational resilience. Kirfhoff ensures transparent financial management, building trust with donors and partners.

    Gerald Sullivan - Chief Operating Officer

    Gerald Sullivan, the Chief Operating Officer at Phoenix House, directs the day-to-day operational activities and service delivery across the organization. Sullivan ensures that rehabilitation programs are implemented efficiently and effectively, meeting the needs of individuals and communities affected by substance abuse. This leadership role involves optimizing operational workflows and resource management to enhance client outcomes. Gerald Sullivan's focus is on maintaining high standards of care and operational excellence throughout Phoenix House's network. The Chief Operating Officer's responsibilities include overseeing facility management and ensuring compliance with all relevant regulations. Sullivan collaborates with other executives to drive strategic initiatives and operational improvements. This executive's efforts are vital for the smooth functioning of all rehabilitation centers. Gerald Sullivan's operational leadership supports the organization's mission to provide accessible and effective treatment. The Chief Operating Officer's role is key to scaling services and reaching more individuals in need. Sullivan champions operational efficiencies that allow for greater investment in client care.

    Mark White - General Counsel & Chief Operating Officer

    Mark White, the General Counsel & Chief Operating Officer at Phoenix House, provides critical legal guidance and oversees key operational functions. White ensures the organization's adherence to all legal and regulatory requirements while driving operational efficiency. This dual role is essential for managing risk and optimizing service delivery in the nonprofit sector. Mark White's legal expertise safeguards Phoenix House's operations and strategic initiatives. The General Counsel & Chief Operating Officer's responsibilities include managing corporate governance and compliance matters. White collaborates with leadership to navigate complex legal landscapes and operational challenges. This executive's oversight supports the integrity and effectiveness of rehabilitation programs. Mark White's strategic approach to operations enhances the organization's capacity to serve its clients. The General Counsel & Chief Operating Officer's role is pivotal in ensuring ethical practices and sustainable growth. White champions operational strategies that align with Phoenix House's mission of healing and recovery.

    David Brown - Chief Operating Officer & Chief Technology Officer

    David Brown, the Chief Operating Officer & Chief Technology Officer at Phoenix House, integrates advanced technological solutions with operational management to enhance service delivery. Brown leads initiatives that leverage technology to improve the efficiency and effectiveness of substance abuse rehabilitation programs. This role is crucial for modernizing operations and expanding access to care through digital platforms. David Brown's expertise ensures that Phoenix House remains at the forefront of technological innovation in the nonprofit sector. The Chief Operating Officer & Chief Technology Officer's responsibilities include overseeing IT infrastructure, data security, and the implementation of new software systems. Brown collaborates with executive teams to align technology strategies with organizational goals. This executive's vision drives operational improvements and enhances client engagement. David Brown's leadership ensures that technology supports Phoenix House's mission to provide comprehensive rehabilitation services. The Chief Operating Officer & Chief Technology Officer's role is vital for scaling operations and reaching underserved populations. Brown champions the use of data analytics to inform strategic decisions and improve program outcomes.

    David Thomas - President

    David Thomas, the President at Phoenix House, plays a pivotal role in guiding the organization's strategic initiatives and operational effectiveness. Thomas focuses on advancing the mission to provide comprehensive substance abuse rehabilitation services to individuals, families, and communities. This leadership position involves fostering key relationships and ensuring the sustained growth of Phoenix House's impact. David Thomas's leadership contributes to the organization's ability to adapt and thrive in the evolving landscape of addiction treatment. The President's responsibilities include overseeing major programs and ensuring alignment with the overall strategic vision. Thomas collaborates with other executives to drive innovation and enhance service delivery. This executive's dedication is crucial for maintaining the high quality of care provided by Phoenix House. David Thomas's influence supports the expansion of services and the reach of rehabilitation efforts. The President's role is integral to the organization's success in combating substance dependency. Thomas champions initiatives that strengthen community partnerships and support networks.

    Kristine Torres-Lockhart - Chief Medical Officer

    Kristine Torres-Lockhart, the Chief Medical Officer at Phoenix House, directs the clinical strategy and medical oversight for all substance abuse rehabilitation programs. Torres-Lockhart ensures that patient care adheres to the highest medical standards and evidence-based practices. This leadership position is fundamental to delivering effective treatment and promoting client well-being. Kristine Torres-Lockhart's expertise guides the development and implementation of clinical protocols across the organization. The Chief Medical Officer's responsibilities include leading the medical staff and ensuring quality assurance in patient care. Torres-Lockhart collaborates with operational leaders to integrate medical services seamlessly with other rehabilitation efforts. This executive's commitment is essential for achieving positive patient outcomes and fostering recovery. Kristine Torres-Lockhart's medical leadership strengthens Phoenix House's capacity to address complex addiction challenges. The Chief Medical Officer's role is critical in advancing the organization's clinical excellence and reputation. Torres-Lockhart champions research and innovation in addiction treatment methodologies.
    Kristine Torres-Lockhart

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    Frequently Asked Questions Regarding Phoenix House Top Executives and Leadership Team

    Who leads Phoenix House?
    Phoenix House is led by Mark Howard (Chief Executive Officer), along with executives such as Ann-Marie Foster (President & Chief Executive Officer) and Kevin Kirfhoff (Chief Financial Officer).
    Who is part of Phoenix House’s executive team?
    The executive team of Phoenix House includes leaders such as Mark Howard (Chief Executive Officer), Ann-Marie Foster (President & Chief Executive Officer), Kevin Kirfhoff (Chief Financial Officer) and other senior executives.
    How many executives does Phoenix House have?
    Phoenix House has 8 executives leading key business areas.
    What roles are included in Phoenix House’s leadership team?
    The leadership team of Phoenix House includes roles such as Chief Executive Officer, President & Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, General Counsel & Chief Operating Officer.