MaineGeneral Health Executive and Leadership Team

November, 2026

Leadership Overview

MaineGeneral Health has 8 executives leading key functions including strategic oversight, clinical operations, financial management, and information technology.

Committed to advancing regional wellness, MaineGeneral Health delivers comprehensive medical services across central Maine through a robust network of hospitals, outpatient centers, and specialized care facilities.

Leadership Roles at MaineGeneral Health

  • President & Chief Executive Officer - Nathan Howell
  • Chief Executive Officer, Cno Mainegeneral Medical Center & Mainegeneral Community Care - Jennifer Riggs
  • Senior Vice President MGH. Chief Executive Officer MGRNC - Nona Boyink
  • Chief Financial Officer - Terry Brann
  • Chief Operating Officer - Paul Stein
  • President - Scott Bullock
  • Chief Information Officer - Anatole Lokshin
  • Chief Medical Officer - Stephen Diaz
  • Nathan Howell - President & Chief Executive Officer

    Nathan Howell, the President & Chief Executive Officer at MaineGeneral Health, directs the overarching strategic vision for this integrated health care system. Howell manages the alignment of clinical excellence with long-term financial sustainability across the Kennebec Valley. By fostering partnerships with regional stakeholders, the President & Chief Executive Officer ensures that the Alfond Center for Health and the Thayer Center for Health maintain high standards of patient safety. Nathan Howell drives organizational growth by prioritizing investments in state-of-the-art medical infrastructure and community outreach programs. This leadership role involves constant collaboration with the Board to refine service delivery models. Through rigorous oversight of system-wide performance metrics, Howell secures the operational integrity of the entire network. Ultimately, the President & Chief Executive Officer champions a culture of continuous improvement, ensuring that the system remains a cornerstone of health care delivery for the central Maine population.

    Jennifer Riggs - Chief Executive Officer, Cno Mainegeneral Medical Center & Mainegeneral Community Care

    Jennifer Riggs, the Chief Executive Officer, Cno Mainegeneral Medical Center & Mainegeneral Community Care at MaineGeneral Health, oversees the daily clinical operations and nursing standards within the primary hospital facilities. Riggs coordinates the delivery of acute care services while maintaining rigorous compliance with federal Centers for Medicare & Medicaid Services benchmarks. By integrating nursing leadership with community care initiatives, the Chief Executive Officer, Cno Mainegeneral Medical Center & Mainegeneral Community Care optimizes patient outcomes across the inpatient and outpatient spectrum. Jennifer Riggs manages the complex interplay between specialized physician practices and home health services to ensure seamless transitions for patients. This role requires constant monitoring of clinical quality indicators to drive excellence in care delivery. Through the implementation of evidence-based nursing protocols, Riggs strengthens the operational capacity of the medical center. Ultimately, the Chief Executive Officer, Cno Mainegeneral Medical Center & Mainegeneral Community Care sustains the high-quality reputation of the system.

    Nona Boyink - Senior Vice President MGH. Chief Executive Officer MGRNC

    Nona Boyink, the Senior Vice President MGH. Chief Executive Officer MGRNC at MaineGeneral Health, directs the specialized operations of the regional cancer center and associated specialty services. Boyink manages the strategic expansion of oncology programs to ensure that central Maine residents access advanced treatment options locally. By aligning the Senior Vice President MGH. Chief Executive Officer MGRNC responsibilities with the broader system mission, Boyink facilitates integrated care pathways for complex patient populations. This leadership role involves managing resource allocation for specialized medical equipment and clinical staff recruitment. Through active engagement with regional health networks, the Senior Vice President MGH. Chief Executive Officer MGRNC enhances the visibility and impact of the cancer center. Nona Boyink drives operational efficiency by streamlining patient intake and treatment coordination. Ultimately, Boyink ensures that the specialized care facilities remain at the forefront of medical innovation while maintaining a patient-centered approach to oncology services.

    Terry Brann - Chief Financial Officer

    Terry Brann, the Chief Financial Officer at MaineGeneral Health, manages the fiscal health and capital allocation strategies for the entire organization. Brann oversees revenue cycle management, budgeting, and financial reporting to ensure the system remains a viable, not-for-profit entity. By analyzing market trends and operational costs, the Chief Financial Officer drives the financial planning necessary for the expansion of the Alfond Center for Health and other facilities. Terry Brann coordinates with the Board to maintain fiscal transparency and regulatory compliance. This leadership role involves mitigating financial risks while identifying opportunities for investment in new medical technologies and community programs. Through rigorous oversight of the balance sheet, Brann ensures that the system maintains the resources required to deliver high-quality care. Ultimately, the Chief Financial Officer secures the long-term financial stability of the organization, allowing the system to continue serving the diverse health needs of the Kennebec Valley.
    Terry Brann

    Paul Stein - Chief Operating Officer

    Paul Stein, the Chief Operating Officer at MaineGeneral Health, manages the logistical and administrative functions that support the entire health care system. Stein oversees the daily operations of long-term care facilities, rehabilitation services, and hospice programs to ensure consistent service delivery. By optimizing supply chain management and facility maintenance, the Chief Operating Officer drives operational efficiency across the Kennebec Valley. Paul Stein coordinates with department heads to implement process improvements that reduce wait times and enhance patient throughput. This leadership role involves balancing the operational needs of diverse service lines with the overarching financial goals of the organization. Through the application of lean management principles, Stein improves the utilization of clinical resources. Ultimately, the Chief Operating Officer maintains the physical and administrative infrastructure necessary for the system to provide high-quality care, ensuring that all operational units function in harmony to support the broader mission of the health care network.

    Scott Bullock - President

    Scott Bullock, the President at MaineGeneral Health, directs the strategic growth and community engagement initiatives for specific segments of the health care system. Bullock manages the development of community outreach programs that address the social determinants of health within the Kennebec Valley. By building strong relationships with local organizations and stakeholders, the President enhances the system's presence and impact in the region. Scott Bullock coordinates with the executive team to ensure that community-based services align with the broader mission of the organization. This leadership role involves identifying gaps in service delivery and implementing programs that improve access to care for underserved populations. Through the promotion of wellness and preventative health initiatives, Bullock drives the long-term health goals of the system. Ultimately, the President strengthens the connection between the health care network and the community, ensuring that the system remains responsive to the evolving needs of the central Maine population.
    Scott Bullock

    Anatole Lokshin - Chief Information Officer

    Anatole Lokshin, the Chief Information Officer at MaineGeneral Health, directs the digital transformation and technological infrastructure of the health care system. Lokshin manages the implementation of electronic health records and cybersecurity protocols to protect sensitive patient data across all campuses. By architecting scalable cloud solutions, the Chief Information Officer ensures that clinical staff have reliable access to critical information during patient care. Anatole Lokshin oversees the integration of diagnostic imaging systems and telehealth platforms to expand the reach of specialty services. This leadership role involves collaborating with the C-suite to align technology investments with long-term strategic objectives. Through the deployment of advanced data analytics, Lokshin supports evidence-based decision-making for clinical and administrative leaders. Ultimately, the Chief Information Officer drives the modernization of the system, ensuring that digital tools enhance the quality and safety of care provided to the central Maine community.

    Stephen Diaz - Chief Medical Officer

    Stephen Diaz, the Chief Medical Officer at MaineGeneral Health, directs the clinical standards and physician performance across the entire health care system. Diaz manages the credentialing and professional development of the medical staff to ensure high levels of patient care and safety. By fostering a culture of clinical excellence, the Chief Medical Officer aligns physician practices with the latest evidence-based medicine protocols. Stephen Diaz collaborates with other C-suite leaders to implement quality improvement initiatives that address the specific health needs of the central Maine population. This leadership role involves overseeing peer review processes and clinical governance to maintain the highest standards of medical practice. Through active engagement with the medical staff, Diaz drives the adoption of best practices in primary and specialty care. Ultimately, the Chief Medical Officer ensures that the clinical outcomes of the system meet the rigorous expectations set by federal regulatory bodies.

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    Frequently Asked Questions Regarding MaineGeneral Health Top Executives and Leadership Team

    Who leads MaineGeneral Health?
    MaineGeneral Health is led by Nathan Howell (President & Chief Executive Officer), along with executives such as Jennifer Riggs (Chief Executive Officer, Cno Mainegeneral Medical Center & Mainegeneral Community Care) and Nona Boyink (Senior Vice President MGH. Chief Executive Officer MGRNC).
    Who is part of MaineGeneral Health’s executive team?
    The executive team of MaineGeneral Health includes leaders such as Nathan Howell (President & Chief Executive Officer), Jennifer Riggs (Chief Executive Officer, Cno Mainegeneral Medical Center & Mainegeneral Community Care), Nona Boyink (Senior Vice President MGH. Chief Executive Officer MGRNC) and other senior executives.
    How many executives does MaineGeneral Health have?
    MaineGeneral Health has 8 executives leading key business areas.
    What roles are included in MaineGeneral Health’s leadership team?
    The leadership team of MaineGeneral Health includes roles such as President & Chief Executive Officer, Chief Executive Officer, Cno Mainegeneral Medical Center & Mainegeneral Community Care, Senior Vice President MGH. Chief Executive Officer MGRNC, Chief Financial Officer, Chief Operating Officer.