Dr. Guillerman is board-certified in Diagnostic Radiology by the American Board of Radiology with a Certificate of Added Qualification in Pediatric Radiology. His clinical and research interests include pediatric chest, musculoskeletal, and tumor imaging, radiation risk assessment and dose optimization, informatics, clinical trial management and clinical practice guideline development. He has authored or co-authored over 70 scientific abstracts and publications and given over 60 invited lectures. He is a member of the Children's Interstitial Lung Disease (ChILD) and International Pediatric Lung MRI working groups, and is co-director of the Center for Diagnostic Imaging of the Cystic Fibrosis Foundation Therapeutic Development Network. He is the RSNA Representative for the Alliance for Radiation Safety in Pediatric Imaging and participates in the Image Gently Speakers Group. He is a member of the RSNA RadLex Pediatric and Reporting Template Development committees and the SPR Informatics committee. He serves on several ACR-SPR Practice Guideline committees and is the radiology representative for numerous Children's Oncology Group clinical trials.