Guy Messer

Guy leads AON’s radiation and radiology services. With more than 25 years’ experience Guy has served in a variety of roles gaining a deep understanding of how today’s healthcare is delivered particularly within the diagnostic imaging space.

Prior to joining AON Guy served as Chief Executive Officer of Trident Medical Imaging, a multi-modality diagnostic imaging organization with a primary focus on PET/CT and oncologic imaging. During his tenure at Trident, Guy also served as Chief Financial Officer and Vice President of Sales. In addition, Guy served on the Technical Assessment Committee for Georgia’s Department of Community Health tasked with developing the state’s Certificate of Need Rules for PET/CT scanners and volunteered his services as Chief Financial Officer for the non-profit Outpatient Imaging Coalition.

Guy has been instrumental in developing imaging centers throughout the U.S and his career includes sales management positions with CTI, Siemens, and CYTOGEN. He has served as Director of Nuclear Medicine with a multi-specialty facility and has been published as principal author of peer-reviewed journal articles. He also served as Adjunct Faculty with George Washington University’s Nuclear Medicine Technology program while simultaneously teaching at the US Navy’s Clinical Nuclear Medicine School as Senior Instructor.

Guy received his MBA from Georgia State University and his Bachelor of Science in Health Care Management from Southern Illinois University.