Thomas Community Health Center, New Orleans, LA, and also maintains a private practice. He has been an instructor in psychology in the Department of Psychiatry, Harvard Medical School. Dr. Chapman earned his doctorate from the Illinois School of Professional Psychology in 1990 and earned a certificate in Cognitive Behavioral Therapy from the Adler School of Professional Psychology in 1994. He is board certified in cognitive and behavioral psychology by the American Board of Professional Psychology. Additionally, he is an approved consultant in clinical hypnosis granted by the American Society of Clinical Hypnosis. His teaching experience includes graduate classes at the Illinois School of Professional Psychology and the Chicago School of Professional Psychology. He has taught undergraduate psychology classes at Elmhurst College.