John H. O'Neal, MD, is a board-certified psychiatrist who has been in private practice since 1977. He is past chief of the department of psychiatry at Sutter Community Hospital in Sacramento, CA. He is an associate clinical professor of psychiatry at the University of California, Davis, School of Medicine and a fellow of the American Psychiatric Association. He lectures on depression and psychopharmacology to mental health professionals, employee assistance programs, and the public. O'Neal received his MS in clinical psychology from Harvard University.