Dr. Ridlen graduated from UHS/Chicago Medical School and then completed a residency in diagnostic radiology at Southern Illinois University School of Medicine. Following residency, Dr. Ridlen completed the Cross-sectional and Breast Imaging fellowship at Rhode Island Hospital/Brown University. Dr. Ridlen is a clinical associate professor at the Alpert School of Medicine of Brown University.
Dr. Ridlen is past President of the Rhode Island Radiology Society and currently serves as one of the American College of Radiology Councilors from Rhode Island. He is also a previous Treasurer for the Rhode Island Medical Society.
Dr. Ridlen has been inducted as a Fellow in the American College of Radiology.