Exeter Hospital Executive and Leadership Team

November, 2026

Leadership Overview

Exeter Hospital has 8 executives leading key functions including operations, financial management, marketing, medical oversight, and organizational leadership.

Committed to delivering high-quality community-based care, Exeter Hospital prioritizes patient outcomes through comprehensive services in oncology, orthopaedics, and reproductive medicine across the New Hampshire region.

Leadership Roles at Exeter Hospital

  • Chief Financial Officer - Allison Casassa
  • Chief Operating Officer - Sean O'Neil
  • President - Melanie Lanier
  • President - Debra Cresta
  • Associate Chief Marketing Officer - Apara Dave MD
  • Chief Medical Officer - Luke Brindamour
  • Moc - Diana Doucette
  • Moc - Louise Field
  • Allison Casassa - Chief Financial Officer

    Allison Casassa, the Chief Financial Officer at Exeter Hospital, manages the fiscal health and long-term economic strategy of the organization. Directing the budgeting process for specialized departments such as breast health and birthing services, the Chief Financial Officer ensures that capital investments align with the hospital's mission of providing accessible community care. This role involves monitoring revenue cycles and optimizing cost structures to support the expansion of medical programs throughout New Hampshire. By analyzing financial performance metrics, Allison Casassa provides the data-driven insights required for the Board to make informed decisions regarding facility upgrades and technology acquisitions. Casassa maintains rigorous oversight of financial compliance and resource distribution, ensuring that the hospital remains a stable, high-performing entity. Through strategic financial planning, the Chief Financial Officer secures the necessary funding to sustain the diverse range of medical services offered to the community.
    Allison Casassa

    Sean O'Neil - Chief Operating Officer

    Sean O'Neil, the Chief Operating Officer at Exeter Hospital, directs the daily administrative functions and facility workflows essential for maintaining high-quality patient care. Overseeing the integration of clinical support services, the Chief Operating Officer ensures that hospital infrastructure remains optimized for complex departments like orthopaedics and cardiovascular health. This leadership role involves managing resource allocation across the New Hampshire campus to maximize operational efficiency and reduce patient wait times. By streamlining internal processes, Sean O'Neil directly impacts the hospital's ability to provide timely, community-based medical interventions. O'Neil coordinates with department heads to align facility capacity with regional healthcare demands, ensuring that all clinical units function at peak performance levels. Through rigorous oversight of hospital logistics, the Chief Operating Officer maintains the operational standards necessary for delivering superior reproductive and oncology services to the local population.

    Melanie Lanier - President

    Melanie Lanier, the President at Exeter Hospital, defines the overarching strategic vision and organizational culture for the entire institution. Directing the long-term growth initiatives, the President ensures that the hospital remains a cornerstone of community health in New Hampshire. This leadership role involves guiding the executive team toward achieving excellence in oncology, orthopaedics, and reproductive medicine. By fostering partnerships with regional stakeholders, Melanie Lanier drives the expansion of services to meet evolving patient needs. Lanier maintains a focus on operational sustainability and clinical innovation, ensuring that the hospital continues to fulfill its mission established in 1897. Through decisive leadership and a commitment to patient-centered care, the President aligns all departments with the core values of the organization. Lanier oversees the strategic direction of the hospital, ensuring that every initiative supports the goal of providing comprehensive, high-quality health care to the local population.

    Debra Cresta - President

    Debra Cresta, the President at Exeter Hospital, leads the institutional efforts to enhance community health outcomes through strategic development and service expansion. Directing the implementation of new healthcare programs, the President ensures that the hospital remains at the forefront of medical innovation in New Hampshire. This leadership role involves overseeing the integration of advanced technologies in oncology and orthopaedics to improve patient recovery times. By cultivating a collaborative environment, Debra Cresta drives the executive team to achieve excellence in all clinical and administrative functions. Cresta focuses on maintaining the hospital's legacy of service while adapting to modern healthcare challenges. Through proactive management and a commitment to community wellness, the President ensures that the organization continues to provide comprehensive, accessible care. Cresta leads the hospital with a focus on sustainable growth, ensuring that the institution remains a vital resource for the region.
    Debra Cresta

    Apara Dave MD - Associate Chief Marketing Officer

    Apara Dave MD, the Associate Chief Marketing Officer at Exeter Hospital, architects the communication strategies that connect the community with essential healthcare services. Overseeing the promotion of oncology, orthopaedics, and reproductive medicine programs, the Associate Chief Marketing Officer ensures that patients understand the full scope of care available at the facility. This leadership role involves crafting outreach initiatives that highlight the hospital's long-standing commitment to New Hampshire residents. By analyzing market trends and patient engagement data, Apara Dave MD drives the development of campaigns that increase awareness of specialized health services. Dave MD collaborates with clinical leaders to translate complex medical offerings into accessible information for the public. Through targeted communication efforts, the Associate Chief Marketing Officer strengthens the hospital's reputation as a primary provider of comprehensive health care, ultimately fostering deeper trust and engagement within the local community.

    Luke Brindamour - Chief Medical Officer

    Luke Brindamour, the Chief Medical Officer at Exeter Hospital, governs the clinical standards and medical practices across all departments. Overseeing the quality of care in cardiovascular, oncology, and birthing units, the Chief Medical Officer ensures that every patient receives evidence-based treatment. This leadership role involves managing physician performance and fostering a culture of safety and excellence throughout the New Hampshire facility. By implementing rigorous clinical protocols, Luke Brindamour drives continuous improvement in patient outcomes and medical service delivery. Brindamour collaborates with the executive team to integrate new medical technologies and research into daily practice, maintaining the hospital's competitive edge in the healthcare market. Through constant evaluation of clinical workflows, the Chief Medical Officer upholds the highest standards of medical integrity, ensuring that the hospital remains a trusted destination for comprehensive health care services within the region.

    Diana Doucette - Moc

    Diana Doucette, the Moc at Exeter Hospital, manages the specialized administrative coordination required for complex clinical departments. Overseeing the operational alignment of the hospital's diverse medical services, the Moc ensures that internal processes support the delivery of high-quality care in areas like breast health and cardiovascular medicine. This leadership role involves facilitating communication between clinical staff and administrative teams to optimize patient throughput. By streamlining departmental workflows, Diana Doucette drives efficiency across the New Hampshire facility. Doucette monitors performance metrics to identify areas for improvement, ensuring that all medical units operate in accordance with the hospital's standards. Through meticulous attention to operational detail, the Moc supports the broader executive strategy, ensuring that the hospital maintains its reputation for excellence. Doucette plays a vital role in coordinating the resources necessary for the successful execution of the hospital's comprehensive health care mission.

    Louise Field - Moc

    Louise Field, the Moc at Exeter Hospital, oversees the administrative oversight of specialized clinical programs to ensure seamless service delivery. Directing the coordination of resources for reproductive medicine and occupational health, the Moc ensures that these departments meet the highest standards of patient care. This leadership role involves managing the logistical requirements of clinical teams to support efficient service provision across the New Hampshire campus. By optimizing departmental workflows, Louise Field drives improvements in operational performance and patient satisfaction. Field collaborates with other executives to align clinical support with the hospital's broader strategic goals. Through rigorous monitoring of service delivery, the Moc ensures that all medical units function effectively and maintain compliance with healthcare regulations. Field provides the necessary administrative support to enable clinical staff to focus on delivering high-quality, community-based health care services to the region.

    Explore Leadership Teams in Hospitals & Physicians Clinics

    Frequently Asked Questions Regarding Exeter Hospital Top Executives and Leadership Team

    Who leads Exeter Hospital?
    Exeter Hospital is led by Allison Casassa (Chief Financial Officer), along with executives such as Sean O'Neil (Chief Operating Officer) and Melanie Lanier (President).
    Who is part of Exeter Hospital’s executive team?
    The executive team of Exeter Hospital includes leaders such as Allison Casassa (Chief Financial Officer), Sean O'Neil (Chief Operating Officer), Melanie Lanier (President) and other senior executives.
    How many executives does Exeter Hospital have?
    Exeter Hospital has 8 executives leading key business areas.
    What roles are included in Exeter Hospital’s leadership team?
    The leadership team of Exeter Hospital includes roles such as Chief Financial Officer, Chief Operating Officer, President, President, Associate Chief Marketing Officer.