A registered psychologist can carry out a comprehensive ADHD assessment and identify whether an ADHD presentation is likely — and that assessment is often the backbone of the whole process. But in Australia, the formal medical diagnosis used for treatment and prescribing is made by a doctor: a psychiatrist or a paediatrician. Psychologists assess in depth; doctors make the medical diagnosis.
It's a subtle but important distinction, and it confuses a lot of people. This guide unpacks exactly what a psychologist can and can't do for ADHD, why the medical diagnosis sits with a doctor, and how a good telehealth service combines both so you get a thorough, joined-up answer rather than a quick label.
Can a psychologist diagnose ADHD?
The honest, nuanced answer is: a psychologist can comprehensively assess for ADHD and identify an ADHD presentation, but the formal medical diagnosis used for prescribing in Australia is made by a medical doctor. A registered psychologist is highly qualified to gather the detailed history, run standardised measures, and reach a clinical view about whether ADHD is likely — and that view carries real weight.
What a psychologist does not do is take on the medical side of the diagnosis or prescribe. That's because ADHD is a medical condition and treatment, including medication where clinically appropriate, is a regulated medical decision. So a psychologist's findings inform the diagnosis; a psychiatrist or paediatrician confirms it medically.
What can a psychologist do in an ADHD assessment?
Quite a lot — and usually the most detailed part. In many pathways the psychologist leads the in-depth assessment, building a careful, whole-of-life picture that a doctor then draws on. Their work commonly includes:
- A thorough clinical history of your difficulties across childhood, school or work, relationships and daily life.
- Standardised, validated questionnaires completed by you and, where helpful, by someone who knows you well.
- Screening for things that can look like or sit alongside ADHD, such as sleep problems, anxiety or low mood.
- Practical, evidence-based support and strategies for managing day-to-day difficulties.
- A clear written summary of findings that feeds into the medical diagnosis and can be shared with your GP and psychiatrist.
Why can't a psychologist make the medical diagnosis or prescribe?
This comes down to training and scope of practice, not capability. Psychologists are experts in psychological assessment and therapy; they are not medical doctors, so they don't manage the medical aspects of a condition or prescribe medication. In Australia, prescribing for ADHD is regulated and only a medical practitioner can take it on.
That's why a psychiatrist (a medical doctor specialising in mental health) or a paediatrician (for children and younger teens) confirms the diagnosis and is responsible for any treatment decisions. Any medication is a clinical decision made by a psychiatrist after a proper assessment, where clinically appropriate, with prescribing usually managed in shared care with your GP over time. It is never promised in advance.
How does Seen ADHD combine the psychologist and the doctor?
Rather than making you choose, a good pathway brings both roles together. At Seen ADHD, a registered psychologist leads the in-depth assessment, a psychiatrist provides input and confirms the diagnosis and treatment where clinically appropriate, and your GP is part of shared care. Everything is delivered by secure video, from home, anywhere in Australia.
In practice that means the depth of a psychologist-led assessment is paired with the medical responsibility of a doctor, so nothing falls through the cracks.
- Initial Telehealth Assessment — from $149, a first step to understand your situation and map a pathway.
- Seen ADHD Pathway — $995 for a two-hour, psychologist-led assessment with psychiatrist input where appropriate.
- Treatment & Review — ongoing care from $1,495, where a diagnosis is confirmed and a plan is in place.
- Rebates may apply depending on your circumstances, but they're situational and never guaranteed — check with your GP.
What if the assessment finds I don't have ADHD?
That's a real and valuable possibility. Not everyone who is assessed will meet the criteria for ADHD, and an honest "no" is a useful outcome, not a failure. A careful assessment can reveal that something else — sleep, anxiety, mood or another factor — better explains what you've been experiencing, which points you towards more fitting support.
The goal is clarity and a sensible next step, including onward referral where that's appropriate, not a label for its own sake.
A note on this guide
This article is general information only and is not a diagnosis or personal medical advice. Whether you have ADHD, and any treatment or medication, are decisions made by qualified clinicians after a proper assessment of your individual situation. If you're in crisis or unsafe right now, call 000, or Lifeline on 13 11 14.