David earned a B.A. in Psychology & Theology (1982) and an M.A. in Counseling Children & Adolescents (1987) from Boston College before earning a Psy.D. at the Massachusetts School of Professional Psychology (1993). After serving for several years as Administrative Director of Student Support Services (full-time psychologist in residence) at St. Paul's School in Concord, New Hampshire, Dr. Gleason opened his own clinical practice in 2000. Subsequently, in 2002, eager to reconnect with an independent school faculty, Dr. Gleason joined Concord Academy in Concord, Massachusetts, as that school's Consulting Psychologist.