Dr. Charles Kahn is professor and vice chairman of radiology at the University of Pennsylvania Perelman School of Medicine. He earned his Bachelor of Arts in Mathematics at the University of Wisconsin– Madison, his M.D. at the University of Illinois, and completed radiology residency at the University of Chicago, where he served as chief resident. He served on the faculty of the University of Chicago and the Medical College of Wisconsin before moving to his current position at Penn. He earned a Master's degree in Computer Sciences from UW-Madison in 2003. He is a Board-certified, practicing radiologist with expertise in body CT and ultrasound. Professional interests include health services research, comparative effectiveness research, decision support, information standards, and knowledge representation. Honors include the American Roentgen Ray Society Scholarship, the AUR/Konica Visiting Scientist Award, Fellowship of the American College of Radiology, and Fellowship of the Society for Imaging Informatics in Radiology. He served two terms as Co-chair of the DICOM Standards Committee, and was 2012-2013 President of the American Roentgen Ray Society. He is author of more than 110 scientific publications, and the creator of CHORUS, ARRS GoldMiner, and the Radiology Gamuts Ontology.