Skip to content Skip to footer

Psychiatrist vs Psychologist: What’s the Difference in Australia?

People mix these two up constantly. Fair enough. Both work in mental health, both have “psych” in the title, and your GP might suggest either one. But a psychiatrist and a psychologist are trained differently, work differently, and can offer you different things. Here’s what actually matters when you’re deciding who to see.

What Does a Psychiatrist Do?

Short answer: they’re medical doctors first. A psychiatrist completes a full medical degree (usually six years in Australia), then works as a hospital intern and resident. After that comes at least five more years of specialist psychiatry training through the RANZCP. Add it up and you’re looking at 13-plus years before they practise independently.

That medical background is the big differentiator. It means a psychiatrist can:

  • Prescribe and adjust psychiatric medications
  • Order blood tests, brain scans and other medical investigations
  • Diagnose conditions like psychosis, bipolar disorder and severe depression
  • Deliver psychotherapy alongside medication
  • Admit someone to hospital if their situation demands it

You’ll often find psychiatrists working with the more complex end of the spectrum, where medication is part of the picture. Plenty also offer psychodynamic therapy and other forms of talk-based treatment.

What Does a Psychologist Do?

Psychologists aren’t doctors. They hold a university degree in psychology with a minimum of six years of study and supervised practice behind them. Clinical psychologists go further still, completing a Master’s or Doctorate with a sharper focus on diagnosing and treating mental health disorders. Their bread and butter is talk therapy. Think CBT, Acceptance and Commitment Therapy (ACT) and similar approaches. They work with people dealing with anxiety, depression, stress, grief, relationship issues, behavioural problems. What they can’t do is prescribe medication or order medical tests.

How Do They Compare?

 PsychiatristPsychologist
Base qualificationMedical degree (MBBS/MD)Psychology degree (min. 6 years)
Specialist training5+ years via RANZCP2-4 years postgraduate
Can prescribe medicationYesNo
Provides psychotherapyYesYes
Can order medical testsYesNo
Can admit to hospitalYesNo
GP referral neededYesNo (but needed for Medicare rebate)

The Medicare Side of Things

Money matters here, so let’s be specific. Under Better Access, Medicare subsidises sessions with both types of professional, but the rules aren’t the same.

With a psychologist, you’ll need a Mental Health Treatment Plan from your GP. That gets you up to 10 rebated sessions per calendar year. The rebate is roughly $145 per session with a clinical psychologist, or about $99 with a general psychologist. Once you’ve used those 10, you’re paying full price until January.

With a psychiatrist, there’s no fixed cap on rebated psychotherapy sessions. You still need a GP referral, and the rebate amount shifts depending on consultation type and length. For anyone needing longer-term care, that uncapped structure can make a real difference financially.

So, Which One Should You See?

There’s no blanket answer. It depends on what’s going on.

A psychiatrist tends to be the better fit when symptoms are severe or persistent, when medication might be needed, or when several issues overlap. Psychosis, bipolar disorder, treatment-resistant depression, severe OCD: these usually need psychiatric involvement.

A psychologist makes more sense for mild to moderate anxiety or depression, life transitions, or situations where structured talk therapy on its own could do the job. And often, the two work in tandem. A psychiatrist manages medication; a psychologist handles weekly therapy. That combination is common in Australian mental health care.

Frequently Asked Questions

Can a psychologist diagnose mental illness in Australia?

They can assess and identify conditions, yes. But formal medical diagnoses and any decisions about medication sit with a psychiatrist. If your situation is murky or complex, your GP will likely send you to a psychiatrist for a specialist opinion.

Do I need a referral to see a psychiatrist or psychologist?

For a psychiatrist, yes. You’ll need a GP referral. For a psychologist, you can book privately without one, but you won’t get Medicare rebates unless your GP writes a Mental Health Treatment Plan. Details on our referral process are here.

How many Medicare-rebated sessions can I get each year?

Ten per calendar year with a psychologist under a Mental Health Treatment Plan. With a psychiatrist, there’s no fixed session cap on rebated psychotherapy. That’s a meaningful difference for people who need ongoing support.

Can a psychiatrist provide therapy, not just medication?

Absolutely. Many psychiatrists deliver talk therapy, including psychodynamic therapy and CBT, right alongside medication management. The idea that psychiatrists only hand out scripts is a common misconception.

What’s the cost difference?

Psychiatrist fees tend to be higher, but the Medicare rebate is also larger. Psychologist costs depend on whether they’re registered as general or clinical. Either way, always ask about fees upfront. Gap payments vary hugely between practices.

How We Can Help

At Sydney Inner West Psychiatry, we offer personalised psychiatric care for adults, children and adolescents from our clinic in Rozelle. Our lead psychiatrist, Dr Azadeh Azadi, is a Fellow of the RANZCP with over a decade of consultant experience across mood disorders, anxiety, psychosis, OCD, perinatal mental health and psychodynamic therapy. Not sure whether a psychiatrist or psychologist is the right starting point? We’re happy to talk it through. Ask your GP for a referral, or get in touch with our team directly.