Brewster Ambulance Service Executive and Leadership Team

July, 2026

Leadership Overview

Brewster Ambulance Service has 4 executives leading key functions including strategy, finance, operations, and administration.

Dedicated to advancing pre-hospital care, Brewster Ambulance Service upholds a legacy of trusted service by prioritizing patient comfort and safety through highly trained EMS professionals and cutting-edge technology across New England.

Leadership Roles at Brewster Ambulance Service

  • President & Chief Executive Officer - Mark Brewster
  • Chief Financial Officer - Paul Arena
  • President & Chief Operating Officer - Courtney Murphy
  • Chief Administrative Officer (CAO) - Jacqueline Kierstead
  • Mark Brewster - President & Chief Executive Officer

    Mark Brewster, the President & Chief Executive Officer at Brewster Ambulance Service, directs the overarching strategy and vision for the organization. This leadership role involves guiding the company's expansion across New England and ensuring alignment with its mission of providing trusted emergency and non-emergency medical transport. Mark Brewster oversees the integration of advanced technology in pre-hospital care and fosters a culture of professionalism among EMS personnel. The executive's focus remains on enhancing patient comfort and safety, reinforcing the company's commitment to reliability and excellence. This position requires constant evaluation of market dynamics and strategic partnerships to maintain Brewster Ambulance Service's leading provider status.

    Paul Arena - Chief Financial Officer

    Paul Arena, the Chief Financial Officer at Brewster Ambulance Service, manages all financial operations and fiscal strategy for the organization. This critical role involves overseeing budgeting, financial planning, and resource allocation across the company's extensive network of 28 transport hubs in Massachusetts, New Hampshire, Rhode Island, and Florida. Paul Arena ensures the financial health and sustainability of Brewster Ambulance Service, supporting its mission to deliver high-quality medical transport. The Chief Financial Officer's responsibilities include managing investments in cutting-edge technology and optimizing operational efficiency to maintain profitability. Arena's financial oversight is essential for the company's continued growth and its ability to respond effectively to 911 calls and inter-facility transfers.

    Courtney Murphy - President & Chief Operating Officer

    Courtney Murphy, the President & Chief Operating Officer at Brewster Ambulance Service, directs daily operations and service delivery across New England. This executive ensures the seamless execution of emergency and non-emergency medical transport, managing the company's 28 transport hubs in Massachusetts, New Hampshire, Rhode Island, and Florida. Courtney Murphy oversees the deployment of highly trained EMS professionals and the implementation of cutting-edge technology to guarantee patient comfort and safety. The Chief Operating Officer's responsibilities include optimizing logistics for 911 responses and inter-facility transfers, driving operational efficiency and reliability. Murphy's leadership ensures that Brewster Ambulance Service consistently meets the high standards of care expected by communities, hospitals, and healthcare facilities.

    Jacqueline Kierstead - Chief Administrative Officer (CAO)

    Jacqueline Kierstead, the Chief Administrative Officer (CAO) at Brewster Ambulance Service, oversees critical administrative functions that support the organization's operational excellence. This role encompasses human resources, regulatory compliance, and the management of internal systems essential for the company's extensive operations across New England. Jacqueline Kierstead ensures that Brewster Ambulance Service maintains a highly professional workforce by managing recruitment, training, and employee relations, directly impacting the quality of patient care. The Chief Administrative Officer (CAO) also plays a key part in integrating new technologies and streamlining processes to enhance efficiency in both emergency and non-emergency medical transport. Kierstead's administrative oversight is fundamental to the company's trusted service history and its commitment to patient comfort and safety.
    Jacqueline Kierstead

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    Frequently Asked Questions Regarding Brewster Ambulance Service Top Executives and Leadership Team

    Who leads Brewster Ambulance Service?
    Brewster Ambulance Service is led by Mark Brewster (President & Chief Executive Officer), along with executives such as Paul Arena (Chief Financial Officer) and Courtney Murphy (President & Chief Operating Officer).
    Who is part of Brewster Ambulance Service’s executive team?
    The executive team of Brewster Ambulance Service includes leaders such as Mark Brewster (President & Chief Executive Officer), Paul Arena (Chief Financial Officer), Courtney Murphy (President & Chief Operating Officer) and other senior executives.
    How many executives does Brewster Ambulance Service have?
    Brewster Ambulance Service has 4 executives leading key business areas.
    What roles are included in Brewster Ambulance Service’s leadership team?
    The leadership team of Brewster Ambulance Service includes roles such as President & Chief Executive Officer, Chief Financial Officer, President & Chief Operating Officer, Chief Administrative Officer (CAO).