Summit Healthcare Executive and Leadership Team

October, 2026

Leadership Overview

Summit Healthcare has 9 executives leading key functions including strategy, information technology, financial management, human resources, clinical governance, medical staff operations, advanced practice provider management, and regulatory compliance.

Committed to delivering comprehensive medical services to the Arizona White Mountains, Summit Healthcare prioritizes patient-centered care through advanced diagnostic, surgical, and emergency health solutions.

Leadership Roles at Summit Healthcare

  • Chief Executive Officer - Jack Koshkerman
  • Chief Financial Officer - David Rothenberger
  • President of Summit Healthcare Advanced Practice Providers Group - Quezia Hall
  • Chief Information Officer - Jay Larson
  • Chief Human Resources Officer - Connie Kakavas
  • Chief of Staff & Board Member - Chad Brimhall
  • Vice Chief of Staff - Ian Brimhall
  • Chief Medical Officer - Jeffrey Northup
  • Director, Compliance - Laura Nicks
  • Jack Koshkerman - Chief Executive Officer

    Jack Koshkerman, the Chief Executive Officer at Summit Healthcare, directs the overarching strategic vision and operational performance of the hospital system. Koshkerman manages the integration of cancer care, cardiac services, and emergency departments to ensure high-quality patient outcomes across the Arizona White Mountains region. By aligning clinical goals with fiscal sustainability, the Chief Executive Officer drives organizational growth and maintains the facility's reputation as a primary healthcare provider. Jack Koshkerman collaborates with the Board to refine long-term service expansion plans and infrastructure investments. This leadership role involves constant monitoring of regional health trends to adapt service offerings effectively. Through rigorous oversight of hospital-wide initiatives, the Chief Executive Officer fosters a culture of excellence and safety. Ultimately, Koshkerman secures the operational stability required to support the diverse medical needs of the local community while navigating the complexities of modern healthcare delivery.

    David Rothenberger - Chief Financial Officer

    David Rothenberger, the Chief Financial Officer at Summit Healthcare, manages the fiscal health and resource allocation for the entire hospital system. Rothenberger oversees budgeting, revenue cycle management, and capital investment strategies to support the expansion of cardiac care and general surgery services. By analyzing financial performance metrics, the Chief Financial Officer identifies opportunities for cost-efficiency without compromising the quality of patient care. David Rothenberger coordinates with department heads to ensure that financial resources align with the strategic priorities of the organization. This leadership role involves navigating complex reimbursement landscapes and managing relationships with insurance providers to maintain long-term financial viability. Through meticulous financial planning, the Chief Financial Officer enables the hospital to invest in state-of-the-art diagnostic imaging and wound care technologies. Ultimately, Rothenberger ensures that the institution remains a stable and reliable healthcare anchor for the residents of the Arizona White Mountains.

    Quezia Hall - President of Summit Healthcare Advanced Practice Providers Group

    Quezia Hall, the President of Summit Healthcare Advanced Practice Providers Group at Summit Healthcare, manages the integration and professional development of nurse practitioners and physician assistants. Hall oversees the deployment of these providers across emergency services, home health, and outpatient clinics to expand access to care. By optimizing the scope of practice for advanced providers, the President of Summit Healthcare Advanced Practice Providers Group ensures that the hospital efficiently meets the diverse medical needs of the Arizona White Mountains population. Quezia Hall collaborates with the Chief Medical Officer to align provider activities with the broader clinical strategy of the organization. This role involves mentoring staff and implementing standardized care models that enhance patient throughput and satisfaction. Through the effective management of this critical workforce, the President of Summit Healthcare Advanced Practice Providers Group supports the hospital's mission to provide high-quality, accessible healthcare services to the local community.
    Quezia Hall

    Jay Larson - Chief Information Officer

    Jay Larson, the Chief Information Officer at Summit Healthcare, architects the digital infrastructure and data security frameworks necessary for modern hospital operations. Larson oversees the implementation of electronic health records and diagnostic imaging systems to streamline clinical workflows across all departments. By modernizing the technological backbone, the Chief Information Officer ensures seamless communication between emergency services, surgical teams, and outpatient clinics. Jay Larson manages cybersecurity protocols to protect sensitive patient information while maintaining compliance with federal healthcare regulations. This role involves evaluating emerging health technologies to enhance diagnostic accuracy and operational efficiency. Through the deployment of robust network solutions, the Chief Information Officer supports the hospital's mission to provide accessible care. Larson continuously optimizes system performance to minimize downtime, thereby allowing medical staff to focus entirely on patient treatment and recovery within the Arizona White Mountains service area.
    Jay Larson

    Connie Kakavas - Chief Human Resources Officer

    Connie Kakavas, the Chief Human Resources Officer at Summit Healthcare, directs talent acquisition, employee development, and organizational culture initiatives. Kakavas oversees the recruitment of specialized medical professionals, including surgeons and advanced practice providers, to meet the growing healthcare demands of the Arizona White Mountains. By implementing comprehensive training programs, the Chief Human Resources Officer ensures that all staff members maintain the highest standards of clinical excellence and patient service. Connie Kakavas manages labor relations and benefits administration to foster a supportive work environment that attracts top-tier talent to the region. This role involves developing retention strategies that reduce turnover and promote long-term staff engagement. Through the alignment of human capital with the hospital's mission, the Chief Human Resources Officer supports the delivery of high-quality emergency and home health services. Ultimately, Kakavas builds a resilient workforce capable of meeting the evolving challenges of the healthcare industry.
    Connie Kakavas

    Chad Brimhall - Chief of Staff & Board Member

    Chad Brimhall, the Chief of Staff & Board Member at Summit Healthcare, facilitates communication between the medical staff and the executive leadership team. Brimhall oversees the governance of clinical committees and ensures that medical policies align with the hospital's strategic objectives. By coordinating the activities of the medical staff, the Chief of Staff & Board Member maintains high standards of care across all specialties, including cardiac and cancer services. Chad Brimhall participates in board-level decision-making to shape the future direction of the hospital and its service offerings. This leadership role involves resolving clinical conflicts and promoting collaborative practices among physicians and administrative staff. Through active engagement with the Board, the Chief of Staff & Board Member ensures that clinical perspectives inform every major institutional decision. Ultimately, Brimhall drives the integration of medical expertise into the hospital's operational framework, ensuring that patient safety remains the central focus of all organizational initiatives.

    Ian Brimhall - Vice Chief of Staff

    Ian Brimhall, the Vice Chief of Staff at Summit Healthcare, supports the clinical leadership team in managing medical staff operations and quality assurance protocols. Brimhall oversees the credentialing process and monitors physician performance to ensure compliance with hospital standards and patient safety regulations. By assisting in the coordination of surgical and emergency departments, the Vice Chief of Staff helps maintain efficient clinical workflows throughout the facility. Ian Brimhall collaborates with the Chief of Staff to implement evidence-based practices that improve patient outcomes in cardiac and wound care. This role involves addressing the daily operational needs of the medical staff and facilitating communication between different clinical specialties. Through the rigorous oversight of medical standards, the Vice Chief of Staff contributes to the overall effectiveness of the hospital's healthcare delivery. Ultimately, Brimhall ensures that the medical team remains well-equipped and organized to serve the residents of the Arizona White Mountains.

    Jeffrey Northup - Chief Medical Officer

    Jeffrey Northup, the Chief Medical Officer at Summit Healthcare, directs the clinical strategy and quality of care across all medical departments. Northup oversees the implementation of clinical protocols for cancer care, cardiac services, and general surgery to ensure consistent patient outcomes. By leading the medical staff, the Chief Medical Officer fosters a culture of continuous improvement and evidence-based medicine. Jeffrey Northup collaborates with other C-suite leaders to integrate new diagnostic imaging technologies into the hospital's service portfolio. This leadership role involves monitoring clinical performance metrics and addressing any gaps in care delivery to maintain high standards of safety. Through the oversight of medical practice, the Chief Medical Officer ensures that the hospital meets the complex health needs of the Arizona White Mountains community. Ultimately, Northup drives the clinical excellence that defines the institution's reputation as a premier provider of comprehensive medical services.

    Laura Nicks - Director, Compliance

    Laura Nicks, the Director, Compliance at Summit Healthcare, manages the regulatory framework and internal audit processes to ensure adherence to healthcare laws and standards. Nicks oversees the development of policies that govern patient privacy, billing practices, and clinical documentation across all hospital departments. By conducting regular risk assessments, the Director, Compliance identifies potential vulnerabilities and implements corrective actions to maintain institutional integrity. Laura Nicks coordinates with legal counsel and executive leadership to ensure that all hospital operations align with state and federal requirements. This role involves training staff on compliance protocols to prevent errors and promote ethical conduct in every aspect of patient care. Through the rigorous enforcement of regulatory standards, the Director, Compliance protects the hospital from legal risks while fostering a culture of transparency. Ultimately, Nicks ensures that the institution operates within the necessary legal boundaries to provide safe and reliable medical services to the Arizona White Mountains.

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    Frequently Asked Questions Regarding Summit Healthcare Top Executives and Leadership Team

    Who leads Summit Healthcare?
    Summit Healthcare is led by Jack Koshkerman (Chief Executive Officer), along with executives such as David Rothenberger (Chief Financial Officer) and Quezia Hall (President of Summit Healthcare Advanced Practice Providers Group).
    Who is part of Summit Healthcare’s executive team?
    The executive team of Summit Healthcare includes leaders such as Jack Koshkerman (Chief Executive Officer), David Rothenberger (Chief Financial Officer), Quezia Hall (President of Summit Healthcare Advanced Practice Providers Group) and other senior executives.
    How many executives does Summit Healthcare have?
    Summit Healthcare has 9 executives leading key business areas.
    What roles are included in Summit Healthcare’s leadership team?
    The leadership team of Summit Healthcare includes roles such as Chief Executive Officer, Chief Financial Officer, President of Summit Healthcare Advanced Practice Providers Group, Chief Information Officer, Chief Human Resources Officer.