Everything in this post was accurate when I checked it in mid 2026, and some of it will be wrong within a year, because Western Australia is in the middle of the biggest change to ADHD care it has ever run. Treat what follows as a map drawn in pencil. Verify the numbers before you spend money on them, and I will keep this post updated as the ground moves.
With that said, here is how getting an ADHD assessment in Perth actually works right now: who can do it, what it costs, how long you will wait, and how to prepare so the appointment is worth what you pay for it.
Start with your GP, and book a long appointment
Almost every pathway runs through a GP first, so start there regardless of where you think you will end up. Book a long appointment and tell reception it is to discuss ADHD assessment, because a standard consult is too short for this conversation and you will spend it apologising for running over.
The GP visit does three jobs. It rules the obvious things in or out, since sleep apnoea, thyroid problems, depression and half a dozen other conditions can wear an ADHD costume. It produces the referral you need, and for psychiatrist assessment the referral is what makes the Medicare rebate claimable, so do not skip it even if a clinic says you can self-refer. And increasingly, the GP visit is where you find out whether your own practice has anyone involved in the new WA training program, which I will come to shortly.
Before that appointment, it is worth doing a structured screener and bringing the results, because “I think I might have ADHD” starts a very different conversation from “here is a validated screener with my scores and here is how this shows up across my life”. The self-assessment on this site is built for exactly that purpose. It diagnoses nothing. It organises the evidence so a time-poor doctor can engage with it.
Psychiatrist or psychologist: what each can and cannot do
For adults in WA, the two main assessment routes have different capabilities and different price shapes, and the distinction matters more here than in some other states.
A psychiatrist can diagnose ADHD and, critically, can prescribe. WA regulates stimulant medication through its Stimulant Regulatory Scheme, and initiating stimulants has historically been restricted to approved specialists: psychiatrists for adults, along with paediatricians and neurologists for younger patients. If medication is part of what you want to explore, the psychiatrist route gets you there directly. With a GP referral, part of the fee comes back through Medicare.
A clinical psychologist or neuropsychologist can assess and diagnose but cannot prescribe. What that route offers instead is depth: typically several hours of clinical interview and cognitive testing producing a detailed written report. That depth costs money, and here is the trap most people find out about late: Medicare currently provides no rebate for neuropsychological assessment itself, so the quoted price is generally the price you pay. If medication interests you, you would still need a prescriber afterwards, which means paying twice. The psychologist route makes most sense when the diagnostic picture is genuinely complicated, when a detailed report is needed for a university or workplace, or when medication is off the table for you anyway.
Neither route is wrong. They are different tools, and the right one depends on what you want the assessment to do.
The new WA GP pathway, which changes the maths
This is the moving part. In 2025 the WA Government funded a program training 65 GPs to diagnose ADHD and initiate stimulant medication for patients aged ten and older, delivered with the RACGP and rolled out in cohorts through 2026. The first trained GPs began working independently in early 2026 after a supervised co-management period, and the full group is expected to be practising by around the end of the year.
For anyone weighing up an assessment, this matters for two reasons. GP appointments cost a fraction of specialist ones, and 65 additional prescribers should gradually pull pressure off waitlists that have been indefensible for years. The honest caveats: 65 GPs across an entire state is a beginning rather than a solution, there is no published public list of trained GPs that I have found as I write this, and the program’s fine print may shift. Ask your own GP whether anyone at the practice is participating or knows who is. That single question may save you a year of waiting or several thousand dollars, and it costs nothing.
One caution if you are reading this from outside WA, or comparing notes with family interstate: every state runs its own version of these rules, and they are all moving at different speeds. Queensland has allowed trained GPs the widest role for longest. NSW began with GPs continuing existing prescriptions and is expanding from there. South Australia opened its GP pathway this year, Victoria is training its first GPs now, and the Northern Territory has announced no reforms at all. So what your cousin in Brisbane did to get assessed may simply not be available here yet, and vice versa. Check the rules for your own state, dated within the last few months, before you plan around any of them.
What it actually costs
Ranges, not promises, and all of them worth verifying at booking time.
A private psychiatrist initial assessment in Perth commonly runs somewhere between $800 and $1,400 before Medicare. With a valid GP referral, the rebate on a long initial consult typically returns a few hundred dollars, with the exact figure depending on the item billed. Some assessments finish in one long appointment; many take two, with the second charged as a review. Telehealth psychiatry clinics operating nationally tend to sit in the same fee territory, sometimes with shorter waits, though if medication follows you need to confirm your own GP is willing to take over ongoing prescribing under WA’s rules, because not all will.
Psychologist-led assessments in Perth typically start around $1,500 and run higher depending on how much testing is involved, with no Medicare rebate on the assessment itself.
For calibration, national research published this year found adult assessments averaging close to $1,400 all-in, with some people paying near $4,000 once every appointment was counted. If a quote lands miles below the ranges above, ask precisely what it includes, because the gap is usually explained by something missing.
None of this counts what comes after: reviews, scripts, and medication itself, which is PBS-subsidised for most people but still a recurring line in the budget. Assessment is the entry fee, not the total cost.
How long you will wait
The traditional answer for a Perth psychiatrist has been six to eighteen months, and for many public and popular private clinics that remains the reality. Telehealth clinics have compressed this dramatically, with some booking initial assessments within one to two months. The GP pathway should shorten waits further as trained GPs come online through 2026 and beyond, particularly outside the metro area, which was a stated aim of the program.
The practical advice: get on a list early, even while you are still deciding. A waitlist position costs nothing to hold and everything to not have. You can cancel a booking you no longer want far more easily than you can conjure one you need.
Make the appointment worth its price
Whoever assesses you, the appointment runs on evidence, and most of the useful evidence is yours to gather beforehand. Old school reports are gold, because the diagnostic criteria require signs present in childhood, and a Year 4 teacher writing “capable but constantly distracted” in 1994 is testimony no adult memory can match. A partner, parent or old friend who can describe what they observe adds a second angle. And a structured record of how these patterns cost you across work, home, money and relationships turns a short appointment into a productive one, which is precisely what the impact assessment is designed to produce. Clinicians make decisions on functional impairment, not vibes, and arriving with the impairment already documented is the single most valuable hour of preparation available to you.
One last thing, because it changes how urgent all of the above feels. If the waitlist is long or the cost is out of reach right now, you are not locked out of doing anything about your life in the meantime. Coaching, systems work and most practical supports never required a diagnosis in the first place. Assessment answers a specific question and opens specific doors, medication chief among them. It is worth doing for many people. It is not the gate everything else stands behind.
If you are earlier in the process and still working out whether assessment is even the right next step, start with the self-assessment, take the results to a long GP appointment, and decide from evidence rather than guesswork.
