Quick answer: In NSW, adults can be assessed for ADHD by a psychologist, a psychiatrist, or, as the system changes, a specially trained GP. A psychologist can provide a full diagnostic assessment and report, but can't prescribe medication. Psychiatrists can diagnose and prescribe. NSW Health expects trained "endorsed" GPs to begin diagnosing ADHD and starting medication from late 2026. You don't need a referral to see a psychologist for an ADHD assessment.
Who can diagnose ADHD in adults in NSW?
Psychologists can assess and diagnose ADHD, and provide a detailed written report with recommendations. They don't prescribe medication.
Psychiatrists can diagnose ADHD and prescribe and manage medication. Wait times and fees vary a lot.
GPs: under NSW reforms, GPs who complete extra training can already continue prescribing for people who are diagnosed and stable on medication. NSW Health expects trained GPs to begin assessing, diagnosing and starting ADHD medication from late October 2026. Not every GP will offer this, so ask your own GP.
Many people choose a psychologist assessment because it's thorough, it doesn't need a referral, and the report can then be shared with a GP or psychiatrist if they want to explore medication.
What happens in an adult ADHD assessment?
At Emu Heights Psychology, an adult ADHD assessment includes:
An intake form covering your developmental history and current concerns
ADHD and mental health questionnaires
The DIVA-5, a structured diagnostic interview that looks at your experiences in both childhood and adulthood
A written diagnostic report
A feedback appointment to talk through the outcome and recommendations
Because ADHD starts in childhood, part of the assessment looks back at your early years. It can help to have old school reports, or a family member who can share what you were like as a child, but it isn't essential.
How much does an adult ADHD assessment cost?
Emu Heights Psychology offers adult ADHD assessments and adolescent ADHD assessments (ages 12–17). If you think you may also be autistic, a combined autism and ADHD assessment looks at both. Current fees and full details are on our ADHD Assessment page.
Can I get ADHD medication after a psychologist's assessment?
Psychologists can't prescribe, but your report can support the next step. You can take it to your GP, who may refer you to a psychiatrist or, where available, a GP trained to prescribe ADHD medication. They will make their own decision about medication, but a thorough report can help guide their care.
Do I need a referral?
No. You can book an ADHD assessment with a psychologist directly.
Is a telehealth ADHD assessment valid?
Yes. A telehealth assessment uses the same interview, questionnaires and diagnostic criteria as an in-person one. At Emu Heights Psychology you can attend by telehealth from anywhere in Australia, or in person in Blaxland in the Blue Mountains, near Penrith.
About the author
Kylie Wheeler is a registered psychologist and the founder of Emu Heights Psychology. She is a late-diagnosed neurodivergent adult (AuDHDer) and provides neurodiversity-affirming adult autism and ADHD assessments in person in Blaxland and by telehealth across Australia.
This article is general information only and isn't a substitute for an individual assessment or clinical advice. Information about NSW ADHD reforms is current as of October 2026; check NSW Health for the latest.
