Northern Light Health Executive and Leadership Team

July, 2026

Leadership Overview

Northern Light Health has 10 executives leading key functions including strategy, operations, human resources, finance, information technology, and medical affairs.

Driven by a commitment to community wellness, Northern Light Health is dedicated to improving health outcomes through accessible, high-quality medical care across Maine, integrating advanced technologies with compassionate patient services.

Leadership Roles at Northern Light Health

  • Northern Light Health President & Chief Executive Officer - Guy Hudson
  • Vice President & Chief Financial Officer - Mer Doucette
  • Chief Operating Officer - Nancy Rines
  • Vice President, Tamc Employee Services & Chief Human Resources Officer - Thomas Umphrey
  • Vice President & Chief Information Officer - Michael Mistretta
  • Vice President and Regional Chief Information Officer - Del Dixon
  • Senior Vice President, Chief Medical Officer - Navneet Marwaha
  • Do - Kristin Robinson
  • Do - Marisa Mastropasqua
  • Guy Hudson - Northern Light Health President & Chief Executive Officer

    Guy Hudson, the Northern Light Health President & Chief Executive Officer at Northern Light Health, directs the overall strategic vision and operational execution for the comprehensive healthcare system. Hudson guides the organization's mission to enhance community wellness through accessible, high-quality medical care across Maine. This leadership involves overseeing multiple hospitals, clinics, and medical facilities, ensuring a wide range of services from emergency care to specialized treatments are delivered effectively. The focus remains on integrating advanced medical technologies with compassionate healthcare delivery to serve communities with both inpatient and outpatient needs. Guy Hudson's role is central to maintaining the nonprofit healthcare provider's commitment to improving health outcomes throughout the region.

    Mer Doucette - Vice President & Chief Financial Officer

    Mer Doucette, the Vice President & Chief Financial Officer at Northern Light Health, directs the financial strategy and management for the entire healthcare system. Doucette oversees all financial operations, including budgeting, financial planning, revenue cycle management, and investment strategies, ensuring the fiscal health of the organization. This leadership is crucial for supporting the nonprofit healthcare provider's mission of delivering accessible, high-quality medical care across Maine. Mer Doucette's responsibilities include managing financial resources to sustain and expand the network of hospitals, clinics, and medical facilities, while also ensuring compliance with all financial regulations. The financial stewardship under Doucette enables Northern Light Health to continue its commitment to community wellness and patient care.

    Nancy Rines - Chief Operating Officer

    Nancy Rines, the Chief Operating Officer at Northern Light Health, manages the day-to-day operations of the healthcare system's extensive network of facilities. Rines ensures the efficient functioning of multiple hospitals, clinics, and medical centers throughout Maine, overseeing the delivery of a broad spectrum of medical services. This includes coordinating emergency care, surgical procedures, and specialized treatments to meet community needs. The operational oversight extends to integrating advanced medical technologies and maintaining high standards of compassionate healthcare delivery across all inpatient and outpatient services. Nancy Rines's leadership supports the system's nonprofit mission by optimizing resource allocation and operational effectiveness to provide accessible, high-quality care.

    Thomas Umphrey - Vice President, Tamc Employee Services & Chief Human Resources Officer

    Thomas Umphrey, the Vice President, Tamc Employee Services & Chief Human Resources Officer at Northern Light Health, leads all human resources functions and employee services for the healthcare system. Umphrey is responsible for developing and implementing strategies that support a robust network of healthcare professionals dedicated to patient care across numerous locations. This involves talent acquisition, employee development, compensation, and benefits, ensuring Northern Light Health attracts and retains top medical talent. The role also focuses on fostering a positive and productive work environment that aligns with the organization's commitment to compassionate healthcare delivery. Thomas Umphrey's strategic direction is critical for maintaining the workforce necessary to provide accessible, high-quality medical care throughout Maine.

    Michael Mistretta - Vice President & Chief Information Officer

    Michael Mistretta, the Vice President & Chief Information Officer at Northern Light Health, leads the information technology strategy and infrastructure for the healthcare system. Mistretta oversees the integration and management of advanced medical technologies across multiple hospitals, clinics, and medical facilities, ensuring seamless data flow and robust cybersecurity measures. This role is vital for supporting the organization's commitment to compassionate healthcare delivery and efficient patient care. Michael Mistretta's responsibilities include driving innovation in health IT, enhancing electronic health record systems, and ensuring technology supports the delivery of a wide range of medical services. The CIO's strategic vision ensures that technology effectively serves the communities with both inpatient and outpatient needs.

    Del Dixon - Vice President and Regional Chief Information Officer

    Del Dixon, the Vice President and Regional Chief Information Officer at Northern Light Health, focuses on the strategic implementation and management of information technology within specific regions served by the healthcare system. Dixon collaborates with local medical facilities to ensure technology solutions effectively support patient care and operational efficiency. This involves overseeing the deployment of advanced medical technologies and IT infrastructure tailored to regional needs, enhancing the delivery of emergency care, surgical procedures, and specialized treatments. Del Dixon's role is critical in aligning regional IT initiatives with the broader organizational goals of integrating technology with compassionate healthcare delivery. The focus remains on supporting communities with accessible, high-quality inpatient and outpatient services through optimized IT systems.
    Navneet Marwaha, the Senior Vice President, Chief Medical Officer at Northern Light Health, provides critical medical leadership and strategic direction for the healthcare system. Marwaha oversees clinical operations and ensures the highest standards of patient care are maintained across all hospitals, clinics, and medical facilities. This involves guiding the medical staff, developing clinical protocols, and championing the integration of advanced medical technologies with compassionate healthcare delivery. Navneet Marwaha's expertise is essential for ensuring the effective provision of a wide range of medical services, including emergency care, surgical procedures, and specialized treatments. The Chief Medical Officer's leadership directly supports Northern Light Health's mission to improve community wellness through accessible, high-quality medical care.

    Kristin Robinson - Do

    Kristin Robinson, the Do at Northern Light Health, contributes medical expertise to the leadership team, focusing on clinical excellence and patient outcomes. Robinson's role involves supporting the delivery of comprehensive medical services across the organization's network of hospitals and clinics. This includes ensuring adherence to best practices in patient care and contributing to the strategic implementation of advanced medical technologies. Kristin Robinson's involvement supports the system's commitment to providing compassionate healthcare and improving community wellness through accessible, high-quality medical services. The focus remains on enhancing both inpatient and outpatient care experiences for all patients served by Northern Light Health.

    Marisa Mastropasqua - Do

    Marisa Mastropasqua, the Do at Northern Light Health, plays a vital role in advancing the clinical mission of the healthcare system. Mastropasqua's responsibilities include contributing to the oversight of medical services provided through Northern Light Health's extensive network of facilities. This involves ensuring that patient care aligns with the organization's dedication to integrating advanced medical technologies with compassionate healthcare delivery. Marisa Mastropasqua's input supports the goal of providing accessible, high-quality medical care to communities throughout Maine. The focus is on enhancing the effectiveness and quality of both inpatient and outpatient services, reinforcing the system's commitment to community wellness.

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    Frequently Asked Questions Regarding Northern Light Health Top Executives and Leadership Team

    Who leads Northern Light Health?
    Northern Light Health is led by Guy Hudson (Northern Light Health President & Chief Executive Officer), along with executives such as Mer Doucette (Vice President & Chief Financial Officer) and Nancy Rines (Chief Operating Officer).
    Who is part of Northern Light Health’s executive team?
    The executive team of Northern Light Health includes leaders such as Guy Hudson (Northern Light Health President & Chief Executive Officer), Mer Doucette (Vice President & Chief Financial Officer), Nancy Rines (Chief Operating Officer) and other senior executives.
    How many executives does Northern Light Health have?
    Northern Light Health has 9 executives leading key business areas.
    What roles are included in Northern Light Health’s leadership team?
    The leadership team of Northern Light Health includes roles such as Northern Light Health President & Chief Executive Officer, Vice President & Chief Financial Officer, Chief Operating Officer, Vice President, Tamc Employee Services & Chief Human Resources Officer, Vice President & Chief Information Officer.