Dr. Gerald Nestadt is the Rudolf Hoehn-Saric and Evanne Hoehn-Saric Professor of Anxiety and OCD Research in the Department of Psychiatry and Behavioral Sciences in the Johns Hopkins Medical School and Professor of Mental Health in the Bloomberg School of Public Health at Johns Hopkins.

He is the director of the Johns Hopkins OCD clinic, and teaches residents and students about this disorder.He is active in research, clinical treatment, and education in Obsessive Compulsive Disorder (OCD). His research, funded by the NIMH, involves investigating the genetic etiology of obsessive compulsive disorder. He received his medical degree from the University of Witwatersrand in Johannesburg, South Africa and a degree in Public Health at the Johns Hopkins University. He completed his psychiatric residency training at Johns Hopkins and a psychiatric epidemiology fellowship, also at Johns Hopkins. He has been on the faculty at Johns Hopkins for the past 30 years. In addition to studying OCD, he is involved in epidemiological research studying personality in the general population and the genetics of schizophrenia and bipolar disorder. He has published more than one hundred and sixty papers in peer reviewed psychiatric journals. He served on the American Psychiatric Association OCD Treatment Guidelines Committee and was a consultant on the Diagnostic and Statistical Manual of Mental Disorders V Revisions committee, and the OCD Foundation Scientific Advisory Committee.