Dr. O'Reilly completed his medical degree at the Royal College of Surgeons in Ireland (1986-1992). His internship and residency were accomplished in Dublin teaching hospitals (1992-1995) and at Boston University (1996-1998), followed by a fellowship in pulmonary and critical care medicine at the University of Alabama at Birmingham (1998-2001). Dr. O'Reilly has a longstanding interest in basic and translational research in the lung. During his fellowship, he worked in the laboratory of Professor Sadis Matalon in the UAB Dept. of Anesthesiology Research, studying innate immunity and acute lung injury.