Mass General Brigham Executive and Leadership Team

June, 2026

Leadership Overview

Mass General Brigham has 10 executives leading key functions including strategy, finance, information technology, operations, and clinical administration.

Driven by a commitment to advancing patient care, Mass General Brigham operates as a leading integrated healthcare system dedicated to medical research and professional education, fostering innovation across its communities.

Leadership Roles at Mass General Brigham

  • President & Chief Executive Officer - Rosanne Klibanski
  • Chief of Staff To the President and Chief Executive Officer - Peter Brown
  • Chief Financial Officer - David Lagasse
  • Senior Vice President and Chief Financial Officer, Community, Specialty and Ambulatory Division - Vincent McDermott
  • President & Chief Operating Officer - David Roberts
  • Chief Operating Officer, SRN - Ruel Jackson
  • Chief Information Officer - Brian Blackman
  • Chief of Staff - Margaret Norton
  • Chief Technology Officer - Steven Flammini
  • Director and Site Chief Information Officer - Egan Visker
  • Rosanne Klibanski - President & Chief Executive Officer

    Rosanne Klibanski, the President & Chief Executive Officer at Mass General Brigham, directs the overarching strategy and operational execution for the integrated healthcare system. Klibanski guides the organization's mission to advance patient care, medical research, and professional education across its network of academic medical centers, community hospitals, and specialty facilities. This leadership role involves ensuring the highest standards of quality, accessibility, and innovation in healthcare delivery to the communities served. The President & Chief Executive Officer oversees the strategic alignment of all divisions, fostering collaboration to achieve superior health outcomes and maintain the organization's position as a leader in academic medicine. By championing research initiatives and educational programs, Rosanne Klibanski drives the translation of scientific discoveries into clinical applications, directly impacting patient well-being and advancing medical knowledge globally. This executive function is critical for maintaining the system's not-for-profit commitment and its role as a major teaching affiliate of Harvard Medical School.
    Rosanne Klibanski

    Peter Brown - Chief of Staff To the President and Chief Executive Officer

    Peter Brown, the Chief of Staff To the President and Chief Executive Officer at Mass General Brigham, provides dedicated strategic and operational support to the system's top leadership. Brown manages critical projects, facilitates executive-level communications, and ensures alignment across various initiatives aimed at advancing patient care, medical research, and professional education. This role is integral to the efficient functioning of the executive office and the overall strategic direction of the integrated healthcare system. The Chief of Staff To the President and Chief Executive Officer works closely with other leaders to address complex challenges and capitalize on opportunities for growth and innovation. By streamlining executive workflows and ensuring timely execution of priorities, Peter Brown supports the President and Chief Executive Officer's vision for the organization. This leadership function is vital for maintaining momentum and achieving the system's ambitious goals.

    David Lagasse - Chief Financial Officer

    David Lagasse, the Chief Financial Officer at Mass General Brigham, manages the financial health and strategic fiscal planning for the integrated healthcare system. Lagasse oversees all financial operations, including budgeting, revenue cycle management, and capital allocation, ensuring the organization's sustainability and growth. This executive function is vital for supporting Mass General Brigham's mission of advancing patient care, medical research, and professional education. The Chief Financial Officer works closely with other leaders to optimize resource utilization across academic medical centers, community hospitals, and specialty facilities. By implementing robust financial controls and identifying opportunities for efficiency, David Lagasse ensures that financial resources effectively support clinical excellence and innovation. This leadership ensures the not-for-profit entity can continue its commitment to accessible, high-quality healthcare and its significant contributions to medical research and education.
    David Lagasse

    Vincent McDermott - Senior Vice President and Chief Financial Officer, Community, Specialty and Ambulatory Division

    Vincent McDermott, the Senior Vice President and Chief Financial Officer, Community, Specialty and Ambulatory Division at Mass General Brigham, leads financial strategy and oversight for the system's community hospitals, specialty facilities, and outpatient services. McDermott ensures fiscal responsibility and sustainable growth across these diverse care settings, supporting the organization's mission to provide accessible and high-quality healthcare. This executive role is crucial for managing the financial performance of a significant portion of Mass General Brigham's patient care network. The Senior Vice President and Chief Financial Officer, Community, Specialty and Ambulatory Division collaborates with divisional leaders to optimize financial operations, manage budgets, and drive revenue cycle improvements. By implementing sound financial practices, Vincent McDermott supports the system's commitment to innovation and its ability to serve a broad range of communities effectively. This leadership ensures financial strength underpins the delivery of comprehensive care.
    Vincent McDermott

    David Roberts - President & Chief Operating Officer

    David Roberts, the President & Chief Operating Officer at Mass General Brigham, oversees the day-to-day operations and strategic execution across the integrated healthcare system. Roberts ensures the efficient functioning of all clinical and administrative departments, driving operational excellence to support the organization's mission of advancing patient care, medical research, and professional education. This executive role is pivotal in coordinating activities across academic medical centers, community hospitals, and specialty facilities. The President & Chief Operating Officer works to optimize resource allocation, enhance patient flow, and implement best practices in healthcare delivery. By focusing on operational efficiency and quality improvement, David Roberts ensures that the system delivers accessible, high-quality care and supports its commitment to medical innovation and education. This leadership is fundamental to the system's ability to achieve its strategic goals and maintain its reputation for excellence.

    Ruel Jackson - Chief Operating Officer, SRN

    Ruel Jackson, the Chief Operating Officer, SRN at Mass General Brigham, directs operational strategies and execution specifically for the Brigham and Women's Hospital and its affiliated sites. Jackson ensures the seamless delivery of patient care, supports clinical research initiatives, and facilitates professional education programs within this major academic medical center. This executive function is critical for maintaining high standards of operational efficiency and clinical quality. The Chief Operating Officer, SRN collaborates with hospital leadership and system-wide operations to optimize resource management and enhance patient experiences. By focusing on the unique operational demands of a large academic medical center, Ruel Jackson drives improvements in service delivery and supports the organization's commitment to medical advancement and training. This leadership ensures the Brigham and Women's Hospital effectively contributes to Mass General Brigham's overall mission.

    Brian Blackman - Chief Information Officer

    Brian Blackman, the Chief Information Officer at Mass General Brigham, directs the strategic development and implementation of information technology across the integrated healthcare system. Blackman oversees the technology infrastructure, data security, and digital transformation initiatives that support patient care, medical research, and professional education. This executive role is crucial for enhancing operational efficiency and enabling seamless data flow across academic medical centers, community hospitals, and outpatient services. The Chief Information Officer ensures that technology solutions align with the organization's mission to deliver accessible, high-quality healthcare. By championing innovation in health informatics and digital patient engagement, Brian Blackman strengthens the system's capacity to leverage data for improved clinical decision-making and research advancements. This leadership ensures robust IT systems support the organization's commitment to advancing medical knowledge and patient outcomes.

    Margaret Norton - Chief of Staff

    Margaret Norton, the Chief of Staff at Mass General Brigham, provides strategic support and operational coordination for the President & Chief Executive Officer and the executive leadership team. Norton facilitates key initiatives, manages critical projects, and ensures effective communication across the integrated healthcare system's diverse entities. This role is essential for driving the organization's mission forward, focusing on advancing patient care, medical research, and professional education. The Chief of Staff works to streamline decision-making processes and enhance organizational effectiveness across academic medical centers, community hospitals, and specialty facilities. By managing complex priorities and fostering cross-functional collaboration, Margaret Norton ensures that strategic objectives are met efficiently. This leadership function is critical for maintaining operational synergy and supporting the system's commitment to innovation and excellence in healthcare delivery.

    Steven Flammini - Chief Technology Officer

    Steven Flammini, the Chief Technology Officer at Mass General Brigham, drives the technological vision and innovation strategy for the integrated healthcare system. Flammini oversees the development and deployment of cutting-edge technologies that enhance patient care, support groundbreaking medical research, and advance professional education. This executive function is critical for ensuring Mass General Brigham remains at the forefront of healthcare innovation. The Chief Technology Officer collaborates with IT leadership to implement scalable and secure technology solutions across all facilities, including academic medical centers and community hospitals. By exploring emerging technologies and fostering a culture of innovation, Steven Flammini ensures the system's technological infrastructure supports its mission of delivering exceptional healthcare and advancing medical science. This leadership is key to translating technological potential into tangible improvements in patient outcomes and research capabilities.

    Egan Visker - Director and Site Chief Information Officer

    Egan Visker, the Director and Site Chief Information Officer at Mass General Brigham, leads the information technology strategy and operations for specific sites within the integrated healthcare system. Visker ensures that technology infrastructure and services effectively support clinical operations, patient care, and research activities at the designated locations. This role is crucial for implementing IT solutions that align with the organization's broader mission of advancing healthcare and medical education. The Director and Site Chief Information Officer collaborates with site leadership and central IT teams to optimize technology deployment and ensure data integrity and security. By focusing on the unique needs of individual sites while adhering to system-wide standards, Egan Visker enhances the effectiveness of technology in supporting patient outcomes and research endeavors. This leadership ensures localized IT excellence contributes to the overall success of Mass General Brigham.

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    Frequently Asked Questions Regarding Mass General Brigham Top Executives and Leadership Team

    Who leads Mass General Brigham?
    Mass General Brigham is led by Rosanne Klibanski (President & Chief Executive Officer), along with executives such as Peter Brown (Chief of Staff To the President and Chief Executive Officer) and David Lagasse (Chief Financial Officer).
    Who is part of Mass General Brigham’s executive team?
    The executive team of Mass General Brigham includes leaders such as Rosanne Klibanski (President & Chief Executive Officer), Peter Brown (Chief of Staff To the President and Chief Executive Officer), David Lagasse (Chief Financial Officer) and other senior executives.
    How many executives does Mass General Brigham have?
    Mass General Brigham has 10 executives leading key business areas.
    What roles are included in Mass General Brigham’s leadership team?
    The leadership team of Mass General Brigham includes roles such as President & Chief Executive Officer, Chief of Staff To the President and Chief Executive Officer, Chief Financial Officer, Senior Vice President and Chief Financial Officer, Community, Specialty and Ambulatory Division, President & Chief Operating Officer.