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Adult ADHD assessment and diagnosis in Adelaide

Our adult ADHD assessments help adults aged 18 to 60 in Adelaide find out whether an ADHD diagnosis explains what they’re experiencing, and what would help at work, study and home. They happen in clinic at Salisbury or Seacliff, privately with no referral needed.

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  • Ages18 to 60
  • FundingPrivate, no referral needed
  • WhereIn clinic, Salisbury or Seacliff
  • ReportUsually within 2–3 weeks

What does an adult ADHD diagnosis involve?

An adult ADHD assessment looks at your attention, organisation and restlessness now and in childhood, because ADHD starts in childhood even when it’s first noticed later. Australian guidelines recommend interviews and questionnaires with information from people who know you well, such as a partner or parent, and childhood school reports if you have them.1 You get a written report and a feedback session about the findings and next steps.

Attention at work and study

You might say: I lose focus at work or study

Losing focus in meetings or reading, starting tasks at the last minute, or switching between half-finished jobs can come from ADHD, but also from stress, low mood or poor sleep. The assessment looks at what fits best.

Organisation and time

You might say: I’m often late, forgetful or losing things

Running late, missing appointments, losing things and bills piling up are common reasons adults seek an assessment. The report includes practical strategies and recommendations for work or study adjustments.

Restlessness and impulsivity

You might say: I feel restless or act on impulse

In adults, hyperactivity often feels like inner restlessness, talking over people or quick decisions you later regret. The assessment looks at how much this affects daily life.

Looking back at childhood

You might say: I wasn’t diagnosed as a child

Many adults weren’t assessed as children. With your permission, a parent or someone who knew you as a child can describe that time, and old school reports help if you have them.1

When autism might fit as well

You might say: Autism might fit as well

ADHD regularly occurs alongside autism, and some signs overlap.35 If social situations, sensory overload or a need for routine have also been lifelong, a combined autism and ADHD assessment looks at both in one process, with one report, and costs less than booking the two separately.

Combined autism and ADHD assessments

Diagnosis and medication

You might say: I want to try medication

Our psychologists can diagnose ADHD but can’t prescribe. To start medication you need a psychiatrist or a specially trained South Australian GP, who will do their own assessment before prescribing.2

Can a GP in Adelaide diagnose ADHD?

How does an adult ADHD assessment at CHSA work?

  1. A free first call

    Call 08 8166 4700 or send an enquiry. Our team talks through what you’re noticing, the cost, and what to expect, including what an assessment can and can’t do for medication.

  2. A detailed interview

    Your psychologist talks with you about what’s hard now, your childhood, schooling, work, health and relationships.

  3. Questionnaires and input from others

    You complete rating questionnaires. With your permission, a partner, parent or close friend completes them too, and old school reports are helpful if you have them.

  4. Report and feedback

    You receive a detailed written report, usually within 2–3 weeks, and a feedback session (in person, or by phone or video) explaining the findings and practical recommendations.

How much does an adult ADHD assessment cost?

Adult ADHD assessment fees (private)
ServiceFee (full assessment, report and feedback)
Adult ADHD assessment (ages 18 to 60)$1,800
Combined autism and ADHD assessment$2,500

Fees as listed on our fees and funding page. Each fee covers the interviews, questionnaires and testing, the written report and a feedback session. Our team confirms the fee before the assessment is booked.

Ways to pay

  • Private

    ADHD assessments are privately funded. You don’t need a referral from a GP or anyone else to book.

  • Medicare and NDIS

    Medicare rebates and NDIS funding can’t be claimed for our assessment fees, so a GP referral or mental health care plan won’t lower the cost. The report can still support an NDIS access request, or support at school, study or work.

Who assesses adults for ADHD?

Our assessment psychologists are registered with the Psychology Board of Australia and assess adults for ADHD in clinic. If therapy would help after an assessment, our psychology team can support you.

All our psychologists are registered with Ahpra.

Where do adult ADHD assessments happen?

North Clinic, Salisbury

40 Ann St, Salisbury SA 5108Mon–Fri 9:00 AM–5:00 PMAbout the Salisbury clinic

South Clinic, Seacliff

18-20 Scholefield Rd, Seacliff SA 5049Mon–Fri 9:00 AM–5:00 PMAbout the Seacliff clinic

By phone or video For the first call and feedback

Common questions about adult ADHD assessments

Can a psychologist diagnose ADHD in adults?

Yes. Australian guidelines list psychologists, along with psychiatrists, as clinicians who diagnose ADHD in adults.1 Psychologists can’t prescribe medication.

Can I get ADHD medication after a CHSA assessment?

Not from us. A psychiatrist or, in South Australia, a specially trained GP can prescribe ADHD medication for adults where clinically appropriate.2 They do their own assessment before prescribing, so our report doesn’t replace it. If medication is your main goal, talk with your GP first.

Why see a psychologist for an adult ADHD assessment?

A psychologist’s assessment takes a detailed look at your history and at things that can look like ADHD or occur with it, such as anxiety, low mood or learning difficulties.4 The report and feedback help you understand how you work and what would help at work, study and home.

Do I need a referral?

No. Adult ADHD assessments are private, so you can contact us directly. Medicare rebates and NDIS funding can’t be claimed for our assessment fees.

What if I don’t have anyone who knew me as a child?

That’s common. Your psychologist will work with the information you have, such as your own memories, school reports or a partner’s view of you now.

What happens after a diagnosis?

Many adults find ongoing support useful for routines, focus, emotions and relationships. Our psychology team offers ADHD support and therapy.

References

Show all 5 sources
  1. Australian ADHD Professionals Association. (2022). Australian evidence-based clinical practice guideline for attention deficit hyperactivity disorder: ADHD diagnosis. adhdguideline.aadpa.com.au (accessed 11 November 2026). Back to text for reference 1
  2. SA Health. (2026). ADHD care through a GP. sahealth.sa.gov.au (accessed 11 November 2026). Back to text for reference 2
  3. Autism CRC. (2023). National guideline for the assessment and diagnosis of autism: glossary. autismcrc.com.au (accessed 11 November 2026). Back to text for reference 3
  4. Australian ADHD Professionals Association. (2022). Australian evidence-based clinical practice guideline for attention deficit hyperactivity disorder: co-occurring conditions and differential diagnosis. adhdguideline.aadpa.com.au (accessed 11 November 2026). Back to text for reference 4
  5. Healthdirect Australia. (2026). Autism. healthdirect.gov.au (accessed 11 November 2026). Back to text for reference 5

Talk to our team

Book online or call us. The first call is free.

We usually reply within 1–2 business days, Monday to Friday, 9am to 5pm.

Other ways to reach us

Ask anything before you book. The first call is free.

Phone
08 8166 4700
Email
enquiries@chcsa.com.au
Hours
Mon–Fri 9:00 AM–5:00 PM
North Clinic
40 Ann St, Salisbury
South Clinic
18-20 Scholefield Rd, Seacliff