Adult ADHD assessment in Melbourne: cost, wait times and what to expect

Getting an adult ADHD assessment in Melbourne can mean months on a waiting list and a bill you cannot predict. A national study in 2026 found adults waited about 10 weeks on average for a first appointment, and fewer than half of the clinicians contacted could book anyone in at all.

This guide explains what a proper assessment involves, what Melbourne providers charge, who can prescribe medication afterwards, and how our psychology-led assessment works at Preston, Footscray, Dandenong, Melbourne CBD and online.

Why so many Melbourne adults are seeking an ADHD assessment

ADHD is being recognised in adults far more often than a decade ago. The Australian Institute of Health and Welfare reports that 2.8% of Australians, about 761,000 people, were dispensed ADHD-type medicines in 2024-25, up from 0.6% in 2015-16. Women are a big part of that change: UNSW data released in April 2026 shows adult women are now more likely than men to be treated for ADHD.

Demand has outrun supply. A University of Wollongong secret-shopper study contacted more than 700 clinicians across Australia in 2026. Fewer than half could book an ADHD assessment. Adults waited just over 10 weeks on average, and some waited a year.

What an adult ADHD assessment in Melbourne costs

Medicare does not rebate a psychologist-led ADHD assessment at Invictus Health. Some private health extras policies pay part of the fee, and NDIS participants may be able to use plan funding when the assessment supports their plan. Our guide to assessment costs explains what the fee covers.

What a proper assessment involves

The Australian Evidence-Based Clinical Practice Guideline for ADHD (AADPA) sets out what a good adult assessment should include. At Invictus Health that looks like this:

1. Before the appointment. You complete rating scales about attention, organisation, mood and daily life. Where possible, a partner, parent or close friend completes one too, because ADHD must have been present in childhood and other people often remember things you do not.
2. The interview. About two hours with a psychologist, covering school, work, relationships, health, sleep, substance use and mental health. We look at how the symptoms show up now and how they showed up before age 12.
3. Checking other explanations. Anxiety, depression, trauma, poor sleep, thyroid problems, menopause and autism can all look like ADHD or sit alongside it. Sorting this out is the part a quick online questionnaire cannot do.
4. The report. Within 2 weeks you receive a written report that states whether you meet the DSM-5 criteria, which presentation (inattentive, hyperactive-impulsive or combined), what else is going on, and practical recommendations for work, study and daily life.
5. Feedback. We go through the findings with you in plain language and answer your questions.

The guideline notes that cognitive testing does not improve the accuracy of an ADHD diagnosis on its own, so we do not test everyone. We add a cognitive assessment when there is a real question about memory, learning, a past head injury or how your brain is working day to day. In those cases an ADHD or autism assessment with a cognitive assessment is from $3,300 to $3,600.

Who can prescribe medication afterwards

Psychologists cannot prescribe. If medication is something you want to explore, our report goes to a psychiatrist, who can use it to shorten their own assessment. Many Melbourne psychiatrists accept a psychologist’s diagnostic report as the starting point.

Victoria is also training GPs to diagnose ADHD and prescribe. The Department of Health says a first group of 150 GPs began training in September 2026, with priority for GPs outside the city and in lower-income areas, and that prescribing depends on regulatory changes still to be made. Until then, a psychiatrist remains the usual path.

ADHD, autism or both?

Many adults who come to us asking about ADHD also have long-standing social, sensory or routine differences that point to autism. The two often occur together. If that sounds like you, a combined autism and ADHD assessment ($2,700) covers both in one process and one report, rather than paying for two separate assessments. Our articles on autism in adults and ADHD in women and girls can help you decide.

How to choose a provider in Melbourne

• Check the clinician is registered with Ahpra and ask who writes and reviews the report.
• Ask whether the assessment follows the AADPA guideline, including childhood history and a second informant.
• Ask what happens if the answer is “not ADHD”. A good assessment tells you what is going on instead.
• Ask for the total price in writing, the wait, and the report turnaround.
• Be cautious with services that promise a diagnosis in one short video call. Media and research reports in 2026 have raised concerns about the quality of some fast telehealth diagnoses.

How Invictus Health can help

Our psychologists and neuropsychologists provide adult ADHD assessments at Preston, Footscray, Dandenong, Melbourne CBD and online across Victoria. Appointments are usually available within a few weeks. If you are unsure whether to book, start with a 15-minute phone call with our neuropsychologist ($38, taken off your fee if you go ahead). This article is general information only; please speak with a qualified health professional about your own situation. Prices were correct in October 2026.