Adventist Health Executive and Leadership Team

Steven Kinzer, the Chief Executive Officer Ahmg at Adventist Health, directs the strategic vision for the medical group operations. Kinzer architects long-term growth initiatives while ensuring alignment with the broader mission of providing faith-based care across the West Coast. By overseeing the integration of clinical services, the Chief Executive Officer Ahmg optimizes patient access and quality standards. This leadership role involves constant collaboration with the board to refine service delivery models. Steven Kinzer drives operational excellence by streamlining administrative workflows and fostering a culture of compassionate service. Through the management of complex healthcare networks, Kinzer secures the sustainability of medical group functions. The Chief Executive Officer Ahmg maintains focus on expanding the reach of integrated health systems, ensuring that every community served receives high-quality, accessible medical support while maintaining fiscal responsibility and operational efficiency across all regional facilities.

Walt Larsen, the Chief Financial Officer at Adventist Health, manages the fiscal health and capital allocation strategies for the entire organization. Larsen oversees financial planning, budgeting, and investment activities to support the expansion of healthcare services across the West Coast and Hawaii. By monitoring economic trends, the Chief Financial Officer ensures the nonprofit system maintains the resources necessary for long-term stability. This role involves rigorous analysis of operational costs and revenue streams to maximize the impact of every dollar spent on patient care. Walt Larsen directs financial reporting and compliance efforts, providing transparency to stakeholders and the board. Through disciplined asset management, Larsen strengthens the financial foundation of the health system. The Chief Financial Officer executes strategies that balance immediate clinical needs with future infrastructure investments, ultimately supporting the mission of delivering high-quality, faith-based care to diverse communities throughout the region.

Richard Riter, the Chief Financial Officer, Coast Network (North) at Adventist Health, manages the financial health of the northern regional operations. Riter architects localized budgeting and capital planning strategies to support the specific needs of hospitals within the northern network. By overseeing regional financial reporting and resource allocation, the Chief Financial Officer, Coast Network (North) ensures that local facilities operate efficiently while contributing to the overall success of the integrated health system. This role involves analyzing regional market trends to identify opportunities for service expansion and cost optimization. Richard Riter drives fiscal accountability by implementing rigorous financial controls and performance monitoring. Through the management of regional assets, Riter supports the delivery of high-quality, faith-based care in northern communities. The Chief Financial Officer, Coast Network (North) maintains a focus on long-term financial sustainability, ensuring that the northern network remains a vital resource for patients throughout the region.

Timothy Karagounis, the Chief Operating Officer at Adventist Health, directs the daily clinical and administrative operations across the integrated health system. Karagounis architects scalable workflows that enhance patient throughput and service delivery in hospitals throughout the West Coast and Hawaii. By overseeing facility management and supply chain logistics, the Chief Operating Officer ensures that medical teams possess the tools required for effective care. This leadership role involves coordinating cross-departmental efforts to improve operational efficiency and patient safety protocols. Timothy Karagounis drives performance improvements by implementing data-driven metrics that track clinical outcomes and resource utilization. Through the optimization of hospital operations, Karagounis supports the broader organizational goal of providing accessible, faith-based healthcare. The Chief Operating Officer maintains a focus on operational agility, allowing the system to adapt quickly to changing market demands while upholding the highest standards of patient-centered service and organizational excellence.

Mark Scott, the President at Adventist Health, directs the overarching strategic direction and organizational growth of the health system. Scott architects initiatives that expand the reach of faith-based, nonprofit healthcare services across the West Coast and Hawaii. By overseeing the alignment of clinical, financial, and operational functions, the President ensures that the organization fulfills its mission to improve community health. This role involves leading the executive team in developing long-term strategies that address evolving market demands and healthcare challenges. Mark Scott drives organizational success by fostering a culture of innovation and compassionate service. Through the management of high-level partnerships and stakeholder relations, Scott strengthens the position of the health system in the competitive healthcare landscape. The President maintains a focus on sustainable growth, ensuring that the organization remains a trusted provider of high-quality care while effectively managing the complexities of an integrated health network.

Asmik Akopyan, the President at Adventist Health, directs the operational execution and strategic development of specific regional service lines. Akopyan architects programs that enhance the delivery of specialized care, ensuring that patients receive comprehensive support tailored to their unique health requirements. By overseeing the integration of new service models, the President improves the accessibility and quality of care across the West Coast and Hawaii. This role involves working closely with clinical and administrative leaders to streamline service delivery and enhance patient outcomes. Asmik Akopyan drives operational efficiency by identifying and removing barriers to effective care. Through the management of regional service portfolios, Akopyan supports the broader mission of the nonprofit health system. The President maintains a focus on service excellence, ensuring that the organization continues to provide high-quality, faith-based healthcare while adapting to the changing needs of the diverse communities served by the integrated network.

Willie Ewing, the Chief of Staff at Adventist Health, coordinates executive communications and facilitates strategic alignment across the leadership team. Ewing manages the flow of information between the board, the executive office, and various operational departments to ensure cohesive decision-making. By overseeing special projects and high-priority initiatives, the Chief of Staff enables the organization to execute its mission effectively across the West Coast and Hawaii. This role involves synthesizing complex data into actionable insights for senior leadership. Willie Ewing drives organizational efficiency by streamlining internal processes and fostering collaboration among diverse functional areas. Through the management of executive workflows, Ewing supports the strategic objectives of the nonprofit health system. The Chief of Staff ensures that leadership remains focused on core priorities, facilitating the delivery of faith-based care while maintaining clear communication channels that empower teams to achieve consistent, high-quality results in every community served.

William K. Hamilton, the Chief Marketing Officer at Adventist Health, directs brand strategy and community engagement initiatives across the West Coast and Hawaii. Hamilton architects communication campaigns that highlight the faith-based, nonprofit mission of the health system to potential patients and community partners. By overseeing digital presence and public relations, the Chief Marketing Officer ensures that the organization maintains a strong, positive reputation in every market served. This role involves analyzing consumer behavior to tailor outreach efforts that increase awareness of available clinical services. William K. Hamilton drives growth by aligning marketing activities with the broader strategic goals of the integrated health system. Through the development of compelling brand narratives, Hamilton strengthens the connection between the organization and the communities it serves. The Chief Marketing Officer executes comprehensive strategies that promote health literacy and accessibility, ensuring that the public understands the value of the care provided.

Peggy Nakamura, the Chief Revenue Officer at Adventist Health, directs the revenue cycle management and billing operations for the entire health system. Nakamura architects strategies to optimize reimbursement processes and improve financial performance across all hospitals and clinics. By overseeing patient financial services and insurance relations, the Chief Revenue Officer ensures the organization maintains the liquidity required to support its nonprofit mission. This role involves implementing advanced technology solutions to reduce administrative friction and enhance the patient experience during the billing process. Peggy Nakamura drives revenue growth by identifying opportunities for operational improvement and cost recovery. Through the management of complex financial workflows, Nakamura secures the resources necessary for ongoing clinical innovation. The Chief Revenue Officer maintains a focus on financial integrity and compliance, ensuring that the health system remains sustainable while continuing to provide high-quality, faith-based care to communities throughout the West Coast and Hawaii.

Georgina Calderon, the Chief Medical Officer at Adventist Health, directs clinical quality and patient safety standards across the entire health system. Calderon architects evidence-based care protocols that ensure consistent, high-quality medical outcomes for patients on the West Coast and in Hawaii. By overseeing physician engagement and clinical governance, the Chief Medical Officer fosters a culture of excellence and continuous improvement among medical staff. This role involves collaborating with other executives to integrate clinical services with operational goals. Georgina Calderon drives innovation in patient care by implementing advanced medical technologies and best practices. Through the management of clinical performance metrics, Calderon ensures that the organization meets the highest standards of healthcare delivery. The Chief Medical Officer maintains a focus on patient-centered care, ensuring that every clinical decision aligns with the faith-based mission of the nonprofit system while addressing the diverse health needs of the communities served.