Therapist vs. Psychologist vs. Psychiatrist

The short answer: "therapist" is a general term for anyone who provides talk therapy, and it covers several licenses. A psychologist is a specific profession, usually requiring a doctorate in psychology, that provides therapy and psychological testing. A psychiatrist is a medical doctor who specializes in mental health and can prescribe medication. Many "therapists" in the US are master's-level clinicians: licensed clinical social workers (LCSW), professional counselors (LPC) and marriage and family therapists (LMFT).

The titles can be confusing, especially because professionals with very different training may all describe themselves as therapists. This guide explains what each professional does, how their training differs, who can diagnose, test or prescribe, and how people choose. It focuses on the United States, where these titles are most common; licensing and titles differ in other countries.

At a glance

Psychiatrists: medical doctors

Psychiatrists are medical doctors (MD or DO) who complete medical school and then at least four years of psychiatry residency. They can diagnose mental health conditions, prescribe medication, order laboratory tests and consider physical causes of psychological symptoms. Psychiatrists are trained in psychotherapy, and some provide it, but in the US many focus mainly on evaluation and medication management, with follow-up visits that are often 15 to 30 minutes long.

People often see a psychiatrist for conditions where medication is usually a central part of care, such as bipolar disorder or schizophrenia, for severe or treatment-resistant symptoms, or when medical causes need to be ruled out. Psychiatrist visits are generally covered by health insurance, though psychiatrists can be hard to find in-network. See psychiatrist vs. psychologist for a closer comparison.

Psychologists: doctoral-level therapists

Clinical and counseling psychologists typically hold a PhD or PsyD in psychology, which takes about five to seven years of graduate study, including supervised practice and a one-year internship, usually followed by postdoctoral supervised experience and a national licensing exam. They provide psychotherapy, diagnose mental health conditions, design treatment plans and carry out psychological testing, such as intelligence, personality and neuropsychological assessment.

Psychologists cannot prescribe medication in most states. A small number of states, including Louisiana, New Mexico, Illinois, Iowa and Idaho, allow psychologists with additional psychopharmacology training to prescribe. Psychologists often specialize in particular approaches, such as CBT or psychodynamic therapy, or particular groups, such as children, trauma survivors or older adults. Their research training makes them well suited to complex diagnostic questions.

Licensed clinical social workers (LCSW)

LCSWs hold a Master of Social Work (usually two years) and complete supervised clinical hours, often around two years, before licensing. They provide psychotherapy, case management and help connecting people with community resources. Social work training emphasizes the social context of mental health, such as housing, employment, family systems and access to services, and social workers are often skilled at navigating complex systems on a client's behalf.

LCSWs can diagnose and treat mental health conditions and are one of the largest groups of mental health providers in the US. They work in hospitals, community mental health centers, schools, child welfare and private practice. Sessions are often less expensive than with a psychologist and are widely covered by insurance.

Licensed professional counselors (LPC/LPCC)

Licensed professional counselors (titles vary by state, including LPC, LPCC and LMHC) hold a master's degree in counseling, typically two to three years, plus supervised clinical experience and a licensing exam. They provide psychotherapy for mental health and substance use concerns. Counseling training places particular emphasis on wellness, development and practical skill-building alongside treatment of mental health conditions.

Counselors work in private practice, community clinics, schools, colleges and addiction treatment programs. In most states they can diagnose and treat mental health conditions, though the scope of practice varies.

Marriage and family therapists (LMFT)

LMFTs hold a master's or doctoral degree focused on relationships and family systems, plus supervised clinical experience. They treat individuals as well as couples and families, but their training emphasizes how relationships and family patterns influence wellbeing. They are a natural fit for couples therapy, family conflict and situations where individual difficulties are closely tied to relationships. LMFTs can diagnose and treat mental health conditions, bringing a systemic lens; see family systems therapy.

Psychiatric nurse practitioners (PMHNP)

Psychiatric-mental health nurse practitioners are advanced practice nurses with graduate training in mental health. They can assess and diagnose mental health conditions, prescribe medication and, in some cases, provide therapy. Depending on state law, they practice independently or with physician collaboration. In areas with psychiatrist shortages, PMHNPs provide much of the available medication management, often with somewhat longer appointment times.

What kind of therapy, not just which professional

People choosing a therapist often also ask which kind of therapy is most effective. Several approaches have solid research support, and some are especially well supported for particular problems:

• Cognitive behavioral therapy (CBT) has the broadest evidence base, including for depression, anxiety disorders and insomnia. Exposure-based CBT, such as ERP for OCD, is a first-line treatment for several anxiety-related conditions.
• Dialectical behavior therapy (DBT) is best supported for borderline personality disorder and recurrent self-harm. See CBT vs. DBT.
• Acceptance and commitment therapy (ACT) has support across many problems, often with effects similar to CBT.
• Schema therapy has encouraging evidence for personality disorders.
• Interpersonal therapy (IPT) and psychodynamic therapy have support for depression and other conditions.
• Trauma-focused therapies, such as cognitive processing therapy, prolonged exposure and EMDR, are recommended for PTSD.

When well-established therapies are compared directly, differences in outcomes are often modest. Psychotherapy researchers such as Bruce Wampold have argued that "common factors," including the therapeutic alliance, empathy and a credible treatment rationale, account for much of the benefit. A 2018 meta-analysis of nearly 300 studies by Christoph Flückiger and colleagues found a consistent link between the strength of the alliance and therapy outcomes. Both the method and the relationship matter. Browse the therapy types hub for more approaches.

Choosing the right provider

Which professional is the right fit depends on what is needed. As a general guide:

• Medication evaluation: a psychiatrist, psychiatric nurse practitioner or primary care doctor.
• Formal testing (for example ADHD, learning disability or memory concerns): a psychologist or neuropsychologist.
• Talk therapy for common concerns: any licensed therapist (psychologist, LCSW, LPC or LMFT) with relevant training; fit and approach often matter more than the type of license.
• Relationship or family difficulties: an LMFT or another therapist trained in couples or family work.
• Complex or severe difficulties: a psychologist or psychiatrist, or a team that includes both.
• Help with practical needs and services: a clinical social worker.
• Lower cost: master's-level therapists, community mental health centers, training clinics and sliding-scale therapy.

Many people see more than one professional, such as a prescriber for medication and a therapist for regular sessions. It is also reasonable to change providers if the fit is not right after a few sessions.

Questions worth asking

1. What is your license, and are you licensed in my state?
2. What experience do you have with the issues I want help with?
3. What approach do you use, and what does the research say about it for this problem?
4. How will we know whether therapy is working?
5. What are your fees, and do you accept my insurance or offer a sliding scale?

State licensing boards let you check a provider's license. Be cautious about anyone offering mental health treatment without a license; life coaches, for example, are not licensed to diagnose or treat mental health conditions (see therapist vs. life coach). Our guides to finding a therapist and the cost of therapy can help with the next steps.

If you are in crisis or thinking about suicide, please do not wait for a regular appointment; see our crisis resources.

Conclusion

"Therapist" describes what someone does; "psychologist" and "psychiatrist" describe specific professions with specific training. Psychiatrists are medical doctors who can prescribe; psychologists are doctoral-level experts in therapy and testing; and LCSWs, LPCs and LMFTs are licensed master's-level therapists who provide much of the psychotherapy delivered in the US. For most people looking for talk therapy, a licensed professional with relevant experience and a good working relationship matters more than the letters after their name.