Corewell Health Executive and Leadership Team

Tina Freese-Decker, the President & Chief Executive Officer at Corewell Health, directs the overarching strategic vision for the largest healthcare system in Michigan. Overseeing the integration of 22 hospitals and extensive outpatient networks, the President & Chief Executive Officer ensures alignment between clinical delivery and the Priority Health insurance division. This leadership role involves driving long-term growth initiatives while maintaining a focus on equitable, affordable care for over 1.3 million members. By fostering collaboration across the executive leadership team, Tina Freese-Decker maintains the organizational commitment to improving health outcomes and inspiring hope throughout regional communities. The President & Chief Executive Officer manages complex stakeholder relationships, including the Board and community partners, to sustain the mission of the health system. Through rigorous oversight of operational performance and financial health, Freese-Decker secures the future stability of the entire integrated network.

Duane Shafer, the Chief Financial Officer at Corewell Health, directs the financial strategy and fiscal health of the integrated health system. Overseeing capital allocation, revenue cycle management, and budgetary planning, the Chief Financial Officer ensures the long-term sustainability of the 22-hospital network. This leadership role involves analyzing market trends to inform investment decisions in medical technology and facility expansion. By maintaining rigorous financial controls, Duane Shafer supports the delivery of affordable care to communities across Michigan. The Chief Financial Officer collaborates with the insurance division to optimize the financial performance of the provider-sponsored health plan. Through the management of complex financial reporting and risk assessment, Shafer provides the necessary data to guide strategic growth. The Chief Financial Officer remains dedicated to balancing the financial requirements of a large-scale healthcare organization with the mission-driven objective of improving patient health outcomes.

Diane Roth, the Interim Chief Financial Officer at Corewell Health, directs the financial operations and fiscal oversight during the current transition period. Overseeing the management of financial reporting, budgeting, and capital planning, the Interim Chief Financial Officer ensures the continued stability of the health system. This leadership role involves maintaining rigorous financial controls and providing strategic guidance to the executive team regarding resource allocation. By monitoring the financial performance of the 22-hospital network and the insurance division, Diane Roth supports the ongoing delivery of affordable care. The Interim Chief Financial Officer collaborates with the finance department to ensure accurate accounting and compliance with regulatory requirements. Through the management of fiscal risks and opportunities, Roth provides the necessary financial foundation for the organization to pursue its mission. The Interim Chief Financial Officer remains focused on maintaining fiscal discipline and supporting the long-term financial health of the entire integrated system.

Chad Tuttle, the Chief Operating Officer at Corewell Health, manages the daily operational efficiency of the expansive hospital network and outpatient facilities. Overseeing the logistical integration of clinical services, the Chief Operating Officer ensures that patient care delivery remains seamless across the Michigan footprint. This leadership role involves optimizing resource allocation, streamlining administrative workflows, and enhancing the performance of post-acute facilities. By implementing standardized operational protocols, Chad Tuttle drives improvements in service quality and system-wide productivity. The Chief Operating Officer collaborates with regional leaders to address capacity challenges and maintain high standards of emergency and specialty care. Through the continuous refinement of operational processes, Tuttle supports the broader organizational goal of providing accessible healthcare. The Chief Operating Officer remains focused on scaling infrastructure to meet the evolving needs of the patient population while maintaining fiscal responsibility across all clinical departments.

Meleah Mariani, the Chief Operating Officer, North West Region at Corewell Health, directs the operational performance of clinical facilities within the designated geographic territory. Overseeing the delivery of primary and specialty care, the Chief Operating Officer, North West Region ensures that regional hospitals meet the high standards of the integrated system. This leadership role involves managing local physician networks and nursing teams to improve patient outcomes and service accessibility. By coordinating regional resources, Meleah Mariani drives operational excellence and addresses the specific healthcare needs of the local population. The Chief Operating Officer, North West Region collaborates with system-wide leadership to implement standardized care protocols and administrative efficiencies. Through the oversight of regional clinical operations, Mariani supports the broader mission of providing affordable and equitable care. The Chief Operating Officer, North West Region remains focused on strengthening the regional presence and enhancing the quality of care across the North West territory.

Walter Lorang, the Executive Director and Chief Operating Officer - Arvon CIN at Corewell Health, manages the operations of the Clinical Integration Network. Overseeing the coordination between independent providers and the health system, the Executive Director and Chief Operating Officer - Arvon CIN ensures that clinical care remains integrated and high-quality. This leadership role involves developing strategies to improve care coordination and patient outcomes across the network. By fostering partnerships with physicians and advanced practice providers, Walter Lorang drives the success of the CIN in delivering value-based care. The Executive Director and Chief Operating Officer - Arvon CIN collaborates with system leadership to align network goals with the overall mission of the organization. Through the management of clinical performance metrics and network growth, Lorang supports the expansion of accessible healthcare services. The Executive Director and Chief Operating Officer - Arvon CIN remains focused on enhancing the effectiveness of the provider network to benefit patients throughout the region.

Kristie Smith, the Chief Operating Officer, Greenville, Big Rapids & Reed City Hospitals at Corewell Health, manages the operational performance of the specified hospital locations. Overseeing the daily clinical and administrative functions, the Chief Operating Officer, Greenville, Big Rapids & Reed City Hospitals ensures that these facilities provide high-quality care to their respective communities. This leadership role involves optimizing staffing levels, managing facility resources, and improving patient satisfaction scores. By implementing system-wide operational standards, Kristie Smith drives efficiency and clinical excellence at the local level. The Chief Operating Officer, Greenville, Big Rapids & Reed City Hospitals collaborates with regional leadership to address capacity needs and enhance service offerings. Through the oversight of these specific hospitals, Smith supports the broader organizational goal of providing equitable healthcare across Michigan. The Chief Operating Officer, Greenville, Big Rapids & Reed City Hospitals remains dedicated to maintaining the operational health and clinical quality of these vital community assets.

Jason Barell, the Chief of Staff at Corewell Health, coordinates executive communications and facilitates strategic initiatives across the leadership team. Overseeing the flow of information between the C-suite and various departments, the Chief of Staff ensures that organizational priorities receive consistent attention and resources. This leadership role involves managing high-level projects that impact the entire health system, from clinical integration to administrative policy development. By aligning departmental goals with the mission of the organization, Jason Barell drives operational cohesion and effective decision-making. The Chief of Staff acts as a primary liaison for the executive office, managing complex schedules and critical internal partnerships. Through the facilitation of cross-functional collaboration, Barell supports the execution of long-term growth strategies. The Chief of Staff maintains a focus on organizational agility, ensuring that the leadership team remains responsive to the dynamic healthcare landscape in Michigan.

Ashley Sanchez, the Chief of Staff & Manager, Strategy & Operations at Corewell Health, executes strategic planning and operational improvements across the organization. Overseeing the implementation of key business initiatives, the Chief of Staff & Manager, Strategy & Operations ensures that departmental activities align with the broader mission of the health system. This leadership role involves analyzing operational data to identify opportunities for efficiency and growth within the outpatient and hospital networks. By managing cross-functional teams, Ashley Sanchez drives the successful delivery of complex projects that enhance patient access to care. The Chief of Staff & Manager, Strategy & Operations facilitates communication between executive leadership and operational staff to maintain organizational focus. Through the integration of strategic insights into daily operations, Sanchez supports the advancement of equitable healthcare services. The Chief of Staff & Manager, Strategy & Operations remains committed to optimizing system performance and supporting the overall health of Michigan communities.

Arash Litt, the Chief Marketing Officer, Michigan Aco (West) at Corewell Health, directs the brand strategy and community engagement initiatives for the Accountable Care Organization in the western region. Overseeing the communication of value-based care benefits, the Chief Marketing Officer, Michigan Aco (West) ensures that patients and providers understand the advantages of the integrated health model. This leadership role involves developing outreach programs that promote accessible and affordable healthcare services. By analyzing market data, Arash Litt drives the growth of the ACO membership and strengthens the reputation of the health system. The Chief Marketing Officer, Michigan Aco (West) collaborates with clinical leaders to highlight the quality of care provided across the network. Through the execution of targeted marketing campaigns, Litt supports the mission of improving health outcomes in the western region. The Chief Marketing Officer, Michigan Aco (West) remains focused on building trust and awareness within the community to foster long-term patient relationships.