Discover the key differences between psychiatrists and psychologists , and learn how to choose the right mental health professional for your needs. Psychologists and psychiatrists have a lot in common, but they also have some key differences. We’ll go over the differences between the two in practice and education before breaking down how to ... Psychiatrists and psychologists are both experts in the care of people with mental health problems, but, as medical doctors, psychiatrists have the ability to prescribe medication. Discover the key differences between a psychologist and a psychiatrist to better understand their distinct roles in mental health care.