Lionel Cheng serves as the Head of the Department of Diagnostic Radiology and Chief Data and Digital Officer at Singapore General Hospital, where additional roles include Clinical Director for Artificial Intelligence in the Future Health System Department and Diagnostic Radiologist. Their academic appointments encompass positions as a Clinical Associate Professor and Clinical Assistant Professor at Duke-NUS Medical School, and an Adjunct Assistant Professor at NUS Yong Loo Lin School of Medicine. Previous leadership roles in SingHealth include directing medical student education and academic affairs for the Radiological Sciences Academic Clinical Programme. Prior military experience encompasses commanding the Military Medicine Institute and serving as Deputy Chief Army Medical Officer in the Singapore Armed Forces. Lionel Cheng completed medical training at the National University of Singapore and pursued advanced qualifications in Diagnostic Radiology, Clinical Radiology, and Healthcare Management and Leadership, alongside a foundational certificate in Imaging AI.