A psychiatrist is a physician who specializes in psychiatry and is certified in treating mental disorders A psychiatrist is a physician who specializes in the prevention, diagnosis, and treatment of mental, addictive, and emotional disorders, such as the following: * Anxiety * Depression * Developmental disabilities * Psychosis * Substance abuse * Sexual dysfunction Educational requirements A psychiatrist must have an M.D. or D.O. degree from an accredited school of medicine or osteopathy (or international equivalent) and must complete at least 4 years of accredited residency training, including a minimum of 3 years in psychiatry. Examination requirements Psychiatrists must pass a daylong written examination that covers the basic sciences, the clinical science of psychiatry, and psychiatric subspecialties. They must also pass an oral examination that assesses clinical skills through the observation of an actual patient history and examination. Board certification After completing educational and examination requirements, psychiatrists may seek certification from the American Board of Psychiatry and Neurology (ABPN). The ABPN is a member of the American Board of Medical Specialties (ABMS). Board certified psychiatrists have achieved the highest level of education and training possible in the field of psychiatry. Psychiatrists seeking board certification must have an unrestricted license to practice medicine in the United States, must maintain a high standard of personal and professional conduct, and must meet standards set by the ABPN. They also must pass both a written and oral exam administered by the American Board of Psychiatry and Neurology. Psychiatrists must be re-certified every 10 years.