Dr. Koroulakis earned a Bachelor of Science in Physics from Georgetown University. He then completed a research fellowship at the National Institute of Biomedical Imaging and Bioengineering at the National Institutes of Health, researching novel imaging modalities. He received a Doctorate of Medicine from George Washington University School of Medicine in Washington, D.C., where he was also elected to the Alpha Omega Alpha Medical Honor Society, as well as the Gold Humanism Honor Society.

He completed an Internship in Internal Medicine at the Washington Hospital Center in Washington, D.C. and a Residency in Radiation Oncology at the University of Maryland Medical Center in Baltimore, MD.

He has authored or co-authored numerous scholarly articles, abstracts and book chapters and presented research at national and international meetings. He is fluent in English and Greek.