J. Miguel Fernandez de Castro became Executive Chairman on January 1, 2026 having served as Chief Executive Officer since September 2024. He served as Co-CEO and Chief Financial Officer since 2020 and Chief Financial Officer and Senior Executive Vice President since March 2009. Mr. Fernandez de Castro was Senior Vice President and Chief Financial Officer of TurboChef Technologies, Inc. from October 2007 to February 2009, and Vice President of Finance and Controller from April 2004 to February 2009. From October 2003 to February 2004, Mr. Fernandez de Castro served as the Controller of PracticeWorks, Inc. and served as Director of Financial Reporting from August 2000 until its acquisition by The Eastman Kodak Company in October 2003, during which time PracticeWorks was a publicly traded company. Mr. Fernandez de Castro served as Manager of Financial Reporting of AMICAS, Inc. (formerly VitalWorks Inc.) from August 2000 until the completion of the spin-off of PracticeWorks, Inc. in March 2001. Mr. Fernandez de Castro began his career in the audit services group of BDO Seidman, LLP, which provides assurance, tax, financial advisory and consulting services. Mr. Fernandez de Castro is a Certified Public Accountant and a member of the Georgia Society of CPAs. Mr. Fernandez de Castro received a B.A. in Economics and Spanish and a Masters in Accounting from the University of North Carolina at Chapel Hill.
Isabelle Winkles became Chief Financial Officer and Treasurer in June 2026. Prior to joining ExamWorks, Ms. Winkles was the Chief Financial Officer of Braze, Inc., a publicly-traded platform technology company, from January 2020 through May 2026. Before that, Ms. Winkles served in various roles, including Vice President, Finance of Cognizant Technology Solutions Corp., a professional services company, from April 2018 to January 2020 and Managing Director of Morgan Stanley, an investment bank, from January 2016 to April 2018. Ms. Winkles has served on the board of directors of WEBTOON Entertainment Inc. since April 2024. She received a Bachelor of Science in Chemistry from the Massachusetts Institute of Technology and a Master of Business Administration from Harvard University.
Clare Y. Arguedas became our Chief Legal Officer and Executive Vice President in January 2026 previously serving as our General Counsel and Executive Vice President since February 2010. Ms. Arguedas manages the legal affairs of the Company. Prior to joining ExamWorks, Ms. Arguedas was an attorney at the law firm of Paul Hastings LLP from September 2006 to February 2010, during which time she was named a Leading Lawyer for Business by Chambers USA. Ms. Arguedas received a B.A. from the University of Pennsylvania and a J.D. from Emory University School of Law.
Dr. Robert C. Porter has been our Chief Medical Director since July 2010 and President of Network Medical Review subsidiary since its founding in September 1995. Over the past 30 years, Dr. Porter has cultivated an interdisciplinary career that encompasses the clinical practice of medicine, medical evaluation, healthcare management and academia. He is a noted industry speaker and widely published. He has held numerous positions in the private sector including the position of Medical Director, Pioneer Life Insurance Company of Illinois, an insurance company, and President, National Health Services, Inc., a nonprofit providing healthcare. Dr. Porter has served in the public sector as the Director, Outpatient Healthcare Services and Director and Chairman, Department of Emergency Medicine and Occupational Medicine, Swedish American Hospital. From September 2006 to October 2009, he served as the Executive Director of Occupational Health Services for Sherman Health System, a hospital and healthcare system. He holds the academic appointment of Assistant Professor at the University of Illinois, College of Medicine. His medical practice experience includes the emergency, occupational and insurance disciplines. Dr. Porter is board certified by the American Board of Preventive Medicine Occupational Medicine. Dr. Porter did his residency at the Toronto Western Hospital. He received a B.S. and M.D. from the University of Toronto.
Timothy Morphy is President, International responsible for the Australian and UK operations effective February 1, 2026. He is a Director and Chief Executive Officer of MedHealth Group Pty Ltd., positions which he has held since June 2013. From January 2009 to June 2013, Mr. Morphy served as the founding Managing Director of Healthways Australia Pty Ltd and established Australia’s largest integrated chronic disease management program. Prior to this he was General Manager Marketing at I-MED Network, Australia’s largest corporate radiology network, from January 2007 to December 2008.
He held a series of management roles at Medibank Private, Australia’s largest private health insurance organisation, including Manager Medibank Privatisation from July to December 2006, National Head of Marketing from December 2003 to June 2006, Acting General Manager Corporate Affairs & Marketing from September to November 2003, Acting Victorian Sales Manager from May to September 2003, Victorian Contact Centre Manager from December 2002 to November 2003 and Corporate Development Manager (August 2000 to November 2002).
Mr. Morphy has also served at Docklands Authority as Managing Executive Bid Management from June 1999 to August 2000, Project Director from February to May 1999 and Project Manager from June 1998 to January 1999. He was a Solicitor with Bamford Terrett Lawyers from January 1995 to September 1996. He began his career as a Solicitor with Clayton Utz from April 1994 to January 1995. He has practiced as a solicitor in NSW and holds a current practising certificate.
Mr. Morphy has received an MBA from the University of Melbourne, Graduate Diploma of Legal Practice from the University of Technology Sydney, Bachelor of Laws from Australian National University, Canberra, and a B.A. from the University of Melbourne.
Niel Simon became President, North America in July 2025. Prior to joining ExamWorks Group, Niel served as CEO Gallagher Bassett Clinical beginning in April 2024 where he was responsible for a clinical solutions portfolio that included a newly designed provider navigation and concierge solution supporting group health, auto, liability, disability, and workers’ compensation. Between April 2014 and April 2024, Mr. Simon served as Executive Vice President of Global Solutions at Gallagher Bassett with responsibility for delivering all ancillary solutions used by claims professionals. His responsibilities spanned auto repair, investigations, litigation management, MSA/MSP, incident management/FNOL, POI injury triage, and the managed care portfolio. Mr. Simon joined Gallagher Bassett as Senior Vice President Managed Care Programming serving in that role from January 2013 to March 2014. Between January 1999 and December 2012, Mr. Simon served in various management consulting roles and ultimately as Partner at Bridge Strategy Group where he led the Property & Casualty and Healthcare Practices. He began his career at the strategy consulting firm, Renaissance Worldwide. Mr. Simon holds a Bachelor of Science in Business Administration from Brigham Young University and a Master of Business Administration from The University of Chicago Booth School of Business.
