A psychiatrist is a medical doctor who specializes in mental health, including substance use disorders. Psychiatrists are qualified to assess both the mental and physical aspects of psychological problems. Psychiatrist study, diagnose, and treat mental disorders such as anxiety, depression, bipolar disorder, schizophrenia, and many more.
Sigmund Freud, Carl Jung, Wilhelm Reich, Elisabeth Kübler-Ross, and Karl Jaspers are some of the most famous psychiatrists. Dr. Benjamin Rush is the "father of American psychiatry".