Crowley earned a B.A. in psychology from St. Bonaventure University, a master's in psychiatric social work from Boston College and a Ph.D. in clinical psychology from United States International University. His training includes a National Institute of Mental Health fellowship in addition to internships at Harvard University's primary medical and psychiatric institutions. He served as a captain in the Army Medical Service Corps. His work is the subject of many articles as well as national radio and television interviews.