A psychiatrist is a medical doctor who specializes in diagnosing, treating, and preventing mental health conditions. Unlike other mental health professionals, psychiatrists hold a medical degree (MD or DO), which means they can prescribe medications, order medical tests, and evaluate how physical health problems may be affecting your mental state. There are roughly 25,000 practicing psychiatrists in the United States.
What a Psychiatrist Actually Does
A psychiatrist’s core job is figuring out what’s going on with your mental health and building a plan to treat it. That process starts with a thorough evaluation that covers your symptoms, personal history, and family history of both physical and mental health conditions. Psychiatrists can order blood work, brain imaging, or other medical tests to rule out physical causes for psychological symptoms. Thyroid problems, vitamin deficiencies, and neurological conditions can all mimic or worsen mental health issues, and a psychiatrist is trained to catch those.
Once a diagnosis is made, treatment typically involves some combination of medication and psychotherapy (talk therapy). Research published in World Psychiatry shows that therapy and medication are roughly equally effective on their own across conditions like depression, anxiety, PTSD, and OCD. Combining both, however, produces meaningfully better results than either one alone. Some psychiatrists provide therapy themselves, while others focus on medication management and coordinate with a therapist who handles the counseling side.
Education and Training
Becoming a psychiatrist takes a minimum of 12 years after high school. The path starts with a four-year undergraduate degree, followed by four years of medical school earning an MD or DO. After medical school, psychiatrists complete a four-year residency program in psychiatry, where they train in hospitals and clinics under supervision. Those who want to specialize further complete an additional one to two years of fellowship training, bringing the total to 13 or 14 years of post-high school education.
This medical training is what sets psychiatrists apart. They study the same anatomy, pharmacology, and internal medicine as any other doctor before narrowing their focus to mental health. That foundation allows them to understand how medications interact with the body, recognize when a mental health symptom has a physical root cause, and manage complex cases where someone has both medical and psychiatric conditions.
Psychiatrist vs. Psychologist
This is the comparison most people are looking for. The short version: psychiatrists are medical doctors who can prescribe medication, while psychologists hold doctoral degrees in psychology and primarily provide therapy.
A psychologist typically completes a PhD or PsyD in psychology (five to seven years of postgraduate study) plus one to two years of supervised clinical training. Their work centers on teaching skills and changing patterns of thinking and behavior. As one UCLA clinical psychologist puts it: “We’re teaching people skills, and in order for us to teach them skills and see if it works, we monitor their behaviors each week.”
Psychiatrists, by contrast, are trained in both medicine and mental health. They focus heavily on the biological side of psychiatric conditions and can connect physical symptoms with mental ones. In almost every U.S. state, psychologists cannot prescribe medication (a small number of states have begun allowing it with additional training). Psychiatrists can prescribe freely and also perform medical procedures related to mental health.
In practice, the two professionals often work together. A psychiatrist might manage your medication while a psychologist provides weekly therapy. Neither is “better” than the other. The right choice depends on what you need.
Subspecialties in Psychiatry
Psychiatry isn’t one-size-fits-all. The American Board of Psychiatry and Neurology certifies psychiatrists in several subspecialties, including:
- Child and adolescent psychiatry: mental health conditions in children and teens
- Geriatric psychiatry: conditions common in older adults, such as dementia-related behavioral changes
- Addiction psychiatry: substance use disorders and their overlap with other mental health conditions
- Forensic psychiatry: the intersection of mental health and the legal system
- Consultation-liaison psychiatry: managing psychiatric issues in people who are hospitalized for medical problems
- Sleep medicine and pain medicine: conditions that often coexist with psychiatric disorders
Each subspecialty requires additional fellowship training beyond the standard four-year residency.
What to Expect at Your First Appointment
An initial psychiatric evaluation typically lasts 30 to 90 minutes. The psychiatrist will ask about your current symptoms, when they started, how severe they are, and what makes them better or worse. Expect questions about your sleep, appetite, energy level, substance use, and family history. You may also discuss your medical history and any medications you’re currently taking.
The goal of this first visit is to arrive at a working diagnosis and start a treatment plan. That might mean beginning a medication, scheduling follow-up appointments, referring you for therapy, or ordering lab work to rule out medical causes.
Follow-up visits are shorter, usually 15 to 35 minutes. These appointments are often focused on checking how you’re responding to treatment, adjusting medication doses, and monitoring for side effects.
When a Psychiatrist Is the Right Choice
Not every mental health concern requires a psychiatrist. Mild to moderate anxiety or depression, relationship difficulties, and grief often respond well to therapy alone with a psychologist or licensed counselor. A psychiatrist becomes especially important when medication is likely part of the answer.
Conditions like schizophrenia and bipolar disorder almost always require medication management, which means a psychiatrist needs to be involved. Severe depression, particularly when someone is experiencing suicidal thoughts, often benefits from combined medication and therapy. If you’ve tried therapy alone and aren’t improving, or if your symptoms are significantly interfering with your ability to function day to day, a psychiatrist can evaluate whether adding medication would help.
People with both a medical condition and a mental health condition also benefit from seeing a psychiatrist, since they can assess how the two interact and ensure treatments don’t conflict with each other.
Salary and Demand
Psychiatry is one of the higher-paying medical specialties. The mean annual salary for psychiatrists in the U.S. is approximately $257,000, with median pay exceeding $239,200 per year according to 2023 Bureau of Labor Statistics data. Demand for psychiatrists remains high across the country, with many regions facing significant shortages, particularly in rural areas and underserved communities. This shortage is one reason telehealth psychiatry has grown rapidly in recent years.