Psychiatrist vs psychologist: a plain-English Australian guide.

If you've been told you might benefit from 'mental health support', you've probably been handed two very different recommendations: see a psychiatrist, see a psychologist, or sometimes both. The titles sound interchangeable. They aren't. The two professions train differently, work to different scopes of practice and are funded differently under Medicare.

This article explains the difference in practical Australian terms — what each one can do, how they're regulated, what they cost, and how most adults end up seeing one, the other, or both at different points in their care.

Qualifications and training

A psychiatrist is a medical doctor (MBBS or equivalent) who has completed a five-year specialist training programme with the Royal Australian and New Zealand College of Psychiatrists (RANZCP) after their medical degree and internship. The end qualification — FRANZCP — sits alongside specialties like cardiology or general practice. Psychiatrists are registered with AHPRA in the 'specialist psychiatry' category.

A psychologist is not a medical doctor. Psychologists complete a four-year undergraduate psychology degree plus a postgraduate qualification and a period of supervised practice. 'Clinical psychologists' have completed an additional clinical Masters or Doctorate. Psychologists are registered with AHPRA in the psychology category.

What each one actually does

The clearest way to think about it: psychiatrists handle the medical side of mental illness, psychologists handle the talking side.

Psychiatrists

• Diagnose mental-health conditions in adults (formally — including ADHD, bipolar disorder, treatment-resistant depression).
• Prescribe and review medication, including stimulants, antidepressants, mood stabilisers and antipsychotics.
• Order investigations and rule out medical causes (sleep disorders, thyroid, autoimmune conditions) that mimic psychiatric presentations.
• Coordinate complex care — for example, second opinions, shared-care plans back to a GP, or referral on to a psychologist.

Psychologists

• Deliver evidence-based talking therapies — Cognitive Behavioural Therapy (CBT), Acceptance and Commitment Therapy (ACT), schema therapy, EMDR for trauma.
• Provide structured assessments (cognitive testing, personality assessment) — though formal diagnosis of conditions like ADHD or bipolar still requires a medical specialist.
• Work with adjustment difficulties, relationship issues, grief, stress and burnout — areas where therapy is first-line.

Who can diagnose and who can prescribe?

Only medical practitioners can prescribe medication in Australia. That means GPs and psychiatrists can prescribe; psychologists cannot. For tightly regulated medications (stimulants for ADHD, lithium for bipolar disorder), state-based rules generally require a psychiatrist to initiate treatment before a GP can continue prescribing under a shared-care arrangement.

Formal diagnosis is similar. While a psychologist can administer structured assessments and provide an opinion, the formal medical diagnosis required for things like NDIS reports, workplace adjustments under the Disability Discrimination Act or stimulant prescribing in most Australian states comes from a medical specialist.

Cost and Medicare

Under Medicare, both attract rebates — but the structure is different.

• Psychiatry: a GP referral unlocks specialist rebates. The Better Access initiative also includes MBS item 291 for an initial comprehensive psychiatric assessment that returns a treatment plan to your GP — typically much higher rebate than standard sessions.
• Psychology: a GP Mental Health Treatment Plan unlocks up to 10 rebated sessions per calendar year under Better Access. Some sessions are bulk-billed; many psychologists charge a gap.

See SetMind's fees page for the current rebate amounts that apply to telepsychiatry consultations with us.

So which one do I see?

Most people benefit from both at different points, and the decision often comes down to what's driving the difficulty:

• Start with a psychologist when the issue is talking-therapy-shaped: adjustment, grief, relationship patterns, mild-to-moderate anxiety or low mood that hasn't required medication before.
• Start with a psychiatrist when the diagnosis is unclear, when medication needs reviewing, when GP-led care hasn't worked, or when you need a formal assessment for ADHD, bipolar disorder or treatment-resistant depression.
• See both in parallel when symptoms warrant medication and therapy — the psychiatrist manages the diagnostic and medication piece, the psychologist runs the structured therapy work.

Your GP is the right person to triage which pathway makes sense first.