Office of the Chief Executive/Chairman of the Board
He has been the recipient of multiple industry awards and recognized as a top healthcare executive. Grinney currently serves as an industry advisor to KKR.
Office of the Chief Executive /Chief Financial Officer
Michael Preissler is the Chief Financial Officer for Global Medical Response, responsible for finance, accounting, internal audit, revenue cycle, managed care and government affairs.
Preissler has served in healthcare services for medical transportation providers for 16 years and has more than 27 years of accounting, finance, strategy and operations experience. Prior to his role at GMR, Preissler was a C.P.A. in the audit and assurances area of Deloitte. He also held a variety of management positions during his six years at De ...Read More
Edward Van Horne
Office of the Chief Executive/Chief Operating Officer
Edward Van Horne is known throughout the industry for his innovative approach to EMS system design and focus on clinical excellence.
Van Horne began his career as an EMT, later becoming a Nationally Registered Paramedic, and has held numerous roles in the Emergency Medical Services field. Prior to being named president and CEO, Van Horne served as the CEO of AMR’s South Region where he directed operations from Florida to Arizona. Van Horne also served as AMR's Vice President of Business Development for the West Region and ...Read More
Ed Racht, M.D.
Chief Medical Officer
Dr. Ed Racht has been involved in Emergency Medical Services and healthcare systems for more than 30 years. He currently serves as Chair of the Texas EMS, Trauma and Acute Care Foundation, an organization that provides advocacy, strategic planning and healthcare system credentialing in the State of Texas.
Dr. Racht has been Chief Medical Officer for American Medical Response (AMR) since 2010. Prior to this role, he served as the Chief Medical Officer and Vice President of Medical Affairs for Piedmont Newnan Hospital in metro Atlant ...Read More
Chief Compliance Officer
As Chief Compliance Officer, Jennifer Mardosz is responsible for all aspects of the company’s ethics and compliance program including governance, communications, investigations, training, audit and monitoring, due diligence, and integration. She joined the company in 2021 after serving in multiple compliance leadership roles for Optum, a subsidiary of UnitedHealth Group, including Chief Compliance and Privacy Officer.
Mardosz has also served as Chief Compliance Officer and Senior Vice President for DaVita Medical Group, which ...Read More
Chief Information Officer
An experienced IT executive, Sean Tuley has more than 19 years’ experience spanning provider, IT services, consulting and product organizations, preceded by nine years in leadership roles as an officer in the United States Army.
From 2010 through 2018, he served as SVP and CIO of LifePoint Health, a Fortune 500, $6.5 billion healthcare organization operating 68 community hospitals across 22 states with over 46,000 employees and nearly 2,000 employed providers including regional health systems, physician practices, and outpati ...Read More
Chief Human Resources Officer
Lisa Jacoba comes to Global Medical Response with more than 30 years in the Human Resources field. She has extensive experience working as a valued advisor to Board of Directors and executive leadership teams on Human Resources strategies. She has successfully delivered human capital solutions in large, complex, matrixed organizations in more than 50 countries.
From June of 2015 to September of 2019 she served as the Chief Human Resources Officer for CPI Card Group. Prior to joining CPI, Jacoba worked for Western Union from 2006 to ...Read More
Prior to serving in his current role, Cook was general counsel for Air Medical Group Holdings since July 2006. Before joining AMGH, Cook served as Vice President & General Counsel for a mid-sized, publicly-traded specialty construction company based in St. Louis, Missouri. He was also a partner in the Corporate/Securities Group at Blackwell Sanders LLP (n/k/a Husch Blackwell).
Cook has an MBA and a JD from the University of Kansas where he a ...Read More
Senior Vice President of Corporate Development
company in 2020. He has an extensive background in corporate-growth strategy and execution, and brings to the company a deep expertise in mergers and acquisitions, including joint ventures, divestitures, international transactions and strategic partnerships, with a focus on healthcare and life sciences.
Reynold’s vision for smart, strategic and organic corporate expansion is fueled by his passion for overseein ...Read More
Senior Vice President of Business Development
Jeffery McCollom has more than 18 years of service in the EMS industry with a distinguished career history.
During his career, McCollom has managed all aspects of EMS operations and delivery of services including fleet maintenance, administration, MIS, accounting, human resources, materials management, safety and risk, and business development in multiple jurisdictions. In McCollom's career outside of EMS, he designed an internal airport logistics process for the Detroit Metropolitan Airport, which opened in 2002. McCollom serv ...Read More