What's the Difference Between a Psychologist, Psychiatrist, and Counsellor?

Psychologists, psychiatrists, counsellors, social workers, mental health nurses... they're not the same, and the differences matter when you're working out where to start.

If you have been thinking about getting professional support for your mental health, you have probably noticed that there are several different types of practitioner offering what looks like similar work. Psychologists, psychiatrists, counsellors, social workers, mental health nurses, and various therapists all show up in search results. They are not the same, and the differences matter when you are working out where to start.

This guide explains who each one is, what they do, how they are trained, and how to choose between them.

Psychologists

Psychologists are university-trained mental health professionals whose work focuses on understanding how people think, feel, and behave. In Australia, the title psychologist is protected. Only people registered with the Psychology Board of Australia under AHPRA can call themselves psychologists.

To register as a psychologist, a practitioner must complete a minimum of six years of accredited training. This usually includes a four-year undergraduate degree in psychology, followed by two years of postgraduate study and supervised practice, or a longer postgraduate qualification combining both.

Psychologists provide assessment and psychological therapy for a wide range of mental health concerns, including anxiety, depression, trauma, relationship difficulties, grief, life transitions, and many other presentations. They use evidence-based therapies such as cognitive behavioural therapy, acceptance and commitment therapy, schema therapy, and others. Psychologists do not prescribe medication.

Some psychologists hold an area of practice endorsement, which is an additional qualification recognising advanced training in a particular field. Endorsed areas include clinical psychology, counselling psychology, educational and developmental psychology, forensic psychology, health psychology, neuropsychology, and others. Psychologists with these endorsements can use the corresponding endorsed title (for example, clinical psychologist). Psychologists without an endorsement are sometimes referred to as generally registered psychologists; all registered psychologists are qualified to provide psychological services.

Psychiatrists

Psychiatrists are medical doctors who have undertaken further specialist training in mental health. After completing a medical degree (typically six years), a psychiatrist completes several more years of supervised training to become a Fellow of the Royal Australian and New Zealand College of Psychiatrists.

The key difference between psychiatrists and psychologists is medical training. Psychiatrists can diagnose mental health conditions, prescribe medication, and manage the medical aspects of mental illness. They often work with more complex or severe presentations, including conditions where medication is part of the treatment approach.

In Australia, you generally need a GP referral to see a psychiatrist under Medicare. Wait times can be long, and out-of-pocket costs are often significant.

Counsellors and psychotherapists

Counsellors and psychotherapists are practitioners who provide talking therapy, but unlike psychologists, the titles counsellor and psychotherapist are not protected under Australian law. There is no national registration board, no mandatory training pathway, and no enforceable standard of practice across the profession as a whole.

This does not mean counsellors and psychotherapists are not skilled. Many hold significant qualifications and substantial training, and the Psychotherapy and Counselling Federation of Australia (PACFA) and the Australian Counselling Association (ACA) operate voluntary registers with their own standards. But the variation is wider than it is for psychologists, and it is worth checking a counsellor's training and registration before booking.

Counsellors and psychotherapists are not eligible to provide services under the Medicare Better Access scheme, which means their services are not subsidised through Medicare.

Social workers

Mental health accredited social workers are trained to provide psychological support alongside a broader understanding of social context, including family systems, cultural background, and life circumstances. Social workers are eligible to provide services under Medicare if they are accredited as mental health social workers through the Australian Association of Social Workers.

Mental health nurses

Mental health nurses are registered nurses with additional mental health training. They often work in hospital settings, community mental health services, and increasingly in primary care alongside GPs.

How to choose

For most people seeking support for common mental health concerns (anxiety, depression, grief, life difficulties, relationship issues), starting with a psychologist is a sensible default. Medicare rebates are available with a Mental Health Treatment Plan from your GP. Psychologists offer evidence-based therapy across a broad range of presentations. At Ivy Psychology, our team includes both clinical psychologists and generally registered psychologists, working with adults and young people across a range of presentations.

If you suspect a more complex condition or a presentation where medication may be relevant, your GP can refer you to a psychiatrist. In practice, many people see both a psychiatrist (for diagnosis and medication management) and a psychologist (for ongoing therapy), with the GP coordinating care.

If cost is a barrier and you are not eligible for Medicare-subsidised sessions, a properly qualified counsellor or social worker may be a more accessible option. Look for membership of a recognised professional body and a clear training pathway.

A practical first step

The single most useful first step is usually a conversation with your GP. A GP can help you think through what kind of support fits your situation, write a Mental Health Treatment Plan if appropriate, and refer you to the right kind of practitioner. If the first practitioner is not the right fit, changing is reasonable and often necessary.

Finding the right support takes some trial and error. That is normal, and it is not a sign that anything is wrong with you. If you would like to talk to one of our psychologists, you are welcome to get in touch.