Phoenix House Executive and Leadership Team

July, 2026

Leadership Overview

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

Driven by a commitment to healing, Phoenix House provides comprehensive substance abuse treatment, empowering individuals and communities toward recovery and lasting well-being.

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
  • Chief Operating Officer & Chief Technology Officer - David Brown
  • General Counsel & Chief Operating Officer - Mark White
  • 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 guides the nonprofit's mission to combat substance abuse, ensuring comprehensive services reach individuals, families, and communities impacted by dependency. This leadership role involves fostering strategic partnerships and driving initiatives that expand Phoenix House's reach and effectiveness across its service areas. Howard's focus remains on strengthening the organization's capacity to deliver life-changing rehabilitation programs. The Chief Executive Officer ensures alignment with the core values of recovery and community support. By setting the strategic vision, Mark Howard champions the organization's commitment to healing and long-term well-being for all served.

    Ann-Marie Foster - President & Chief Executive Officer

    Ann-Marie Foster, the President & Chief Executive Officer at Phoenix House, spearheads the strategic direction and executive leadership of the organization. Foster drives the mission to provide critical drug and alcohol rehabilitation services, addressing substance abuse challenges for individuals and communities. This executive position involves overseeing all facets of operations, ensuring the delivery of effective treatment programs and fostering a culture of recovery. Ann-Marie Foster collaborates with stakeholders to advance the organization's goals and expand its impact. The President & Chief Executive Officer champions innovation in treatment methodologies and advocates for those affected by dependency. Through dedicated leadership, Ann-Marie Foster strengthens Phoenix House's role as a vital resource for healing and support.
    Ann-Marie Foster

    Kevin Kirfhoff - Chief Financial Officer

    Kevin Kirfhoff, the Chief Financial Officer at Phoenix House, directs all financial planning, management, and reporting activities. Kirfhoff ensures the fiscal health and sustainability of the organization, managing budgets, investments, and financial compliance. This executive function is vital for supporting the nonprofit's extensive rehabilitation services for individuals and communities impacted by substance abuse. Kevin Kirfhoff oversees financial strategies that enable program expansion and operational efficiency. The Chief Financial Officer safeguards organizational assets and provides critical financial insights to guide strategic decision-making. Through meticulous financial oversight, Kevin Kirfhoff strengthens Phoenix House's ability to deliver its life-saving mission.

    Gerald Sullivan - Chief Operating Officer

    Gerald Sullivan, the Chief Operating Officer at Phoenix House, manages the day-to-day operational execution of the organization's rehabilitation services. Sullivan oversees the implementation of treatment protocols and ensures the efficient delivery of care to individuals and families affected by substance abuse. This critical role involves optimizing resource allocation and enhancing operational workflows across all facilities. Gerald Sullivan focuses on maintaining high standards of service quality and program effectiveness. The Chief Operating Officer drives operational excellence, supporting the nonprofit's mission to foster recovery and community well-being. By streamlining operations, Gerald Sullivan directly contributes to the organization's capacity to serve a growing need.

    David Brown - Chief Operating Officer & Chief Technology Officer

    David Brown, the Chief Operating Officer & Chief Technology Officer at Phoenix House, leads both the operational execution and the technological infrastructure of the organization. Brown ensures seamless delivery of substance abuse rehabilitation services while driving technological innovation to enhance program effectiveness and accessibility. This dual role involves optimizing operational workflows and implementing advanced technology solutions to support individuals, families, and communities. David Brown focuses on leveraging technology to improve patient care and operational efficiency. The Chief Operating Officer & Chief Technology Officer bridges the gap between service delivery and digital advancement. By integrating operations and technology, David Brown enhances Phoenix House's capacity for impactful recovery support.

    Mark White - General Counsel & Chief Operating Officer

    Mark White, the General Counsel & Chief Operating Officer at Phoenix House, provides comprehensive legal guidance and oversees critical operational functions. White ensures the organization adheres to all legal and regulatory requirements while driving the efficient delivery of substance abuse rehabilitation services. This executive leadership role involves managing legal affairs and optimizing operational processes to support individuals, families, and communities. Mark White focuses on mitigating legal risks and enhancing operational performance. The General Counsel & Chief Operating Officer plays a pivotal role in maintaining organizational integrity and service quality. Through strategic legal and operational management, Mark White supports Phoenix House's mission of healing and recovery.

    David Thomas - President

    David Thomas, the President at Phoenix House, leads key strategic initiatives and operational oversight for the organization. Thomas drives the mission to provide essential drug and alcohol rehabilitation services, supporting individuals and communities affected by substance abuse. This executive role involves fostering growth and ensuring the effective implementation of treatment programs. David Thomas focuses on enhancing the organization's impact and reach. The President plays a crucial part in advancing Phoenix House's commitment to recovery and long-term well-being. Through dedicated leadership, David Thomas strengthens the organization's ability to offer vital support and healing.

    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 the highest standards of evidence-based treatment are implemented, focusing on the health and recovery of individuals served. This leadership position involves guiding medical staff, developing clinical protocols, and advancing the quality of care provided to patients and their families. Kristine Torres-Lockhart champions advancements in addiction medicine and patient-centered care. The Chief Medical Officer is integral to maintaining the therapeutic integrity of Phoenix House's services. Through expert medical direction, Kristine Torres-Lockhart enhances the organization's capacity for profound healing.
    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, Chief Operating Officer & Chief Technology Officer.