Brewster Ambulance Service Executive and Leadership Team

June, 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 philosophy of patient-centered service, leveraging advanced technology and highly trained professionals to deliver reliable emergency and non-emergency medical transport across New England and beyond.

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 strategic vision and executive leadership for the organization. This role involves setting the company's long-term goals and ensuring alignment with its mission of providing trusted emergency and non-emergency medical transport. Overseeing all major business functions, Mark Brewster drives the company's expansion across New England and other regions, maintaining a steadfast commitment to patient comfort and safety. The executive's leadership ensures the integration of cutting-edge technology in pre-hospital care, reinforcing Brewster Ambulance Service's reputation for reliability and excellence. This position requires constant engagement with market dynamics and regulatory landscapes to sustain growth and operational integrity.

    Paul Arena - Chief Financial Officer

    Paul Arena, the Chief Financial Officer at Brewster Ambulance Service, manages all financial operations and fiscal strategy for the company. This critical role involves overseeing budgeting, financial planning, risk management, and reporting to ensure the company's financial health and sustainability. Paul Arena directs the financial aspects of expanding services across Massachusetts, New Hampshire, Rhode Island, and Florida, supporting the operational hubs and technological investments. The Chief Financial Officer ensures that financial resources are allocated effectively to support patient care initiatives and operational efficiency. Arena's expertise guides investment decisions, optimizing the financial performance of Brewster Ambulance Service while maintaining compliance with all relevant financial regulations and industry standards.

    Courtney Murphy - President & Chief Operating Officer

    Courtney Murphy, the President & Chief Operating Officer at Brewster Ambulance Service, executes the day-to-day operational strategies and ensures the seamless delivery of medical transport services. This position oversees the extensive network of 28 transport hubs across New England and Florida, managing logistics and resource allocation to guarantee prompt and effective patient care. Courtney Murphy drives operational excellence by focusing on the professionalism of EMS professionals and the implementation of advanced technology in pre-hospital settings. The Chief Operating Officer ensures that both emergency 911 responses and inter-facility transfers meet the highest standards of reliability and patient comfort. Murphy's leadership directly impacts the company's capacity to serve communities, hospitals, and healthcare facilities with unwavering dedication.

    Jacqueline Kierstead - Chief Administrative Officer (CAO)

    Jacqueline Kierstead, the Chief Administrative Officer (CAO) at Brewster Ambulance Service, directs the comprehensive administrative functions that support the organization's mission. This role encompasses human resources, legal compliance, and overall organizational efficiency, ensuring that all internal processes facilitate superior patient care. Jacqueline Kierstead oversees the administrative framework that supports the company's extensive operations across New England and Florida, managing policies and procedures that uphold the highest standards of service. The Chief Administrative Officer (CAO) ensures the effective management of personnel, fostering a professional environment for highly trained EMS professionals. Kierstead's strategic oversight contributes significantly to the smooth functioning of Brewster Ambulance Service, enabling a consistent focus on 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).