Combined Autism & ADHD Assessments
Comprehensive Dual Diagnostic Assessments

​Belong Health offers combined Autism and ADHD assessments conducted by a Clinical Psychologist using structured, evidence-based assessment processes.

​These assessments are designed to explore both Autism Spectrum Disorder (ASD) and Attention-Deficit/Hyperactivity Disorder (ADHD) together, providing a more complete understanding where there may be overlapping or complex presentations.

Our Clinical Psychologist services the Peel region (including Mandurah and surrounding areas) and Rockingham and nearby suburbs (within approximately 35 km), with both clinic-based and community assessment options available.

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When a Combined Assessment May Be Helpful

A combined assessment may be recommended when there are concerns across both areas, such as:
• Attention, focus, and impulsivity difficulties
• Social communication differences
• Sensory sensitivities
• Behaviour and emotional regulation challenges
• Difficulties at school, home, or in daily life
• Complex or unclear presentation where more than one condition may be present

Assessing both areas together can help ensure a more accurate and comprehensive understanding.

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Why Assess Autism and ADHD Together?

Autism and ADHD can share overlapping features, including:
• Attention difficulties
• Social challenges
• Emotional regulation differences
• Executive functioning difficulties

A combined assessment allows the psychologist to:
• Differentiate between presentations
• Identify co-occurring conditions
• Understand how different factors interact
• Provide more targeted recommendations

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Assessment Tools Used

Your assessment may include a combination of:
• ADOS-2 (Autism Diagnostic Observation Schedule)
• Conners-4 (Parent & Teacher Questionnaires)
• SRS-2 (Parent & Teacher Questionnaires)
• WISC-V (Cognitive Assessment)
• ABAS-3 (Adaptive Functioning)
• Learning & Behaviour Questionnaires
• Clinical interviews and observation

Using multiple tools allows for a comprehensive, multi-source assessment.

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Assessment Process

1. Referral or enquiry received
2. Reviewed by Clinical Psychologist (accepted or alternative recommendations provided)
3. Parent and teacher questionnaires issued
4. Assessment session scheduled (including WISC-V where appropriate)
5. Parent interview conducted
6. ADOS-2 assessment completed (in clinic)
7. Scoring, interpretation, and report writing
8. Feedback session provided (child may attend for part of session)

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Timeframes

​Timeframes vary depending on complexity and return of questionnaires.

Typical timeframe:
• Combined Autism & ADHD Assessment: approximately 3–4 weeks from assessment to feedback

More complex presentations may take longer.

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What the Report Includes

• Summary of referral concerns
• Developmental and background history
• Results from all assessment tools
• Clinical interpretation
• Consideration of DSM-5-TR diagnostic criteria for both Autism and ADHD
• Strengths and areas of difference
• Practical recommendations for home and school

A feedback session is provided to explain the results and answer questions.

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Who Can Diagnose Autism and ADHD?

Assessments are conducted by a Clinical Psychologist, who is qualified to assess and diagnose both Autism Spectrum Disorder and ADHD.

For ADHD, if medication is being considered, families will need to take the report to a paediatrician or psychiatrist, as psychologists do not prescribe medication.

In some cases, services such as the NDIS or schools may request multidisciplinary confirmation for Autism diagnoses.

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Important Information

​• Diagnosis is made only where criteria are met
• Information is gathered across multiple settings (home and school)
• Assessments are tailored to the individual
• Reports support understanding and planning but do not guarantee funding outcomes

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Fees & Funding
We aim to provide clear and transparent information so families can plan assessments with confidence.

Assessment Fees
All assessments include clinical interviews, standardised assessments, scoring, interpretation, a comprehensive written report, and a feedback session.

Combined ADHD & Autism Assessment
Approx. 20 hours total
$232.99 per hour
Total: $4,659.80
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Timeframes and total hours may vary depending on the complexity of the presentation and how quickly questionnaires are returned.

Medicare (Mental Health Treatment Plan)
If you have a referral from your GP under a Mental Health Treatment Plan, you may be eligible for Medicare rebates for up to 10 individual psychology sessions per calendar year.

Clinical Psychologist rebate: approximately $136.35 per session

How Medicare applies to assessments
Medicare rebates apply to eligible face-to-face sessions that involve:
• Assessment sessions
• Clinical interviews
• Feedback and recommendations

​Medicare does not fund assessments as a packaged service. Rebates are applied per session attended.
Time spent on scoring, interpretation, and report writing is included in the overall fee but is not claimable through Medicare.

​Autism-Specific Medicare Pathway (Under 13)
For children under 13, a paediatrician or psychiatrist may refer for assessment of a complex neurodevelopmental condition (including autism).
This may allow access to:
• Up to 4 allied health assessment sessions
• Rebates of approximately $84–$150 per session
Eligibility depends on specialist referral.

Centrelink (Disability Support Pension – DSP)

A psychology assessment may be used as supporting medical evidence for Centrelink Disability Support Pension (DSP) applications.
Centrelink requires documentation from qualified health professionals, which can include a Clinical Psychologist. Our assessment reports include detailed information about:
• Assessment results
• Clinical interpretation
• Functional impact in daily life
• Recommendations

This information may assist in supporting a DSP application.

​Important to know:
• A psychology assessment is one part of the overall evidence required
• Centrelink assesses applications based on specific criteria, including diagnosis, functional impact, and ability to work
• Additional documentation (e.g. GP or specialist reports) is usually required
• DSP approval is not guaranteed based on one report alone

​DSP is available for individuals aged 16 years and over. For children under 16, families may instead access supports through the NDIS or carer payments.
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Private Health Insurance
Depending on your extras cover, you may be eligible for psychology rebates.

Typical rebates range from:
• $50–$120 per session

Please note:
• Medicare and private health rebates cannot be claimed for the same session
• Some families choose to use Medicare rebates first, then private health for additional sessions

​We recommend checking directly with your insurer for details of your cover.

NDIS
The NDIS does not fund diagnostic assessments.
However, funding may be used for:
• Functional assessments
• Therapy supports
Diagnosis is typically completed outside of NDIS funding.

Payment Information
To support a smooth assessment process:
• Payment is required on the day of each session
• Progression to the next stage occurs once previous sessions are finalised

​We will outline the assessment schedule in advance so you know what to expect.

Planning Your Costs
Families often use a combination of:
• Medicare rebates
• Private health rebates
• Private payment

We are happy to talk this through with you so you can choose an approach that suits your family.

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Signs a Combined Assessment May Be Helpful

​• Difficulties with both attention and social interaction
• Challenges across multiple areas (learning, behaviour, communication)
• Mixed or unclear presentation
• Previous assessments that have not fully explained concerns

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Not Sure If a Combined ASD & ADHD Assessment Is Right?

​If you’re unsure whether a combined assessment is appropriate, our team can help guide you based on your concerns.
​Call us on 08 9586 3634 or send us an email here

free 20min connect Session
with our clinical psychologist

If you’re unsure whether an assessment is the right next step, we offer a Free 20-minute Meet & Greet call with our Clinical Psychologist.

Book Now

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When to Consider Occupational Therapy Instead

​You may wish to consider an Occupational Therapy Cognitive Assessment if your focus is on:
• Everyday functioning and independence
• Memory or attention in daily tasks
• Functional Capacity Assessments (NDIS)

Learn More

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COMBINED AUTISM & ADHD FAQs

How do I know which assessment my child needs?
It’s very common to be unsure.
Different assessments explore different areas, such as:

• Learning and cognitive ability
• Attention and behaviour (ADHD)
• Social communication and interaction (Autism)

Our team will review your enquiry and guide you on the most appropriate assessment based on your concerns.

Can you assess for both Autism and ADHD at the same time?
Yes.
A combined Autism and ADHD assessment may be recommended when there are overlapping concerns. This allows the psychologist to explore both areas together and develop a more complete understanding.

How long does the assessment process take?
Timeframes vary depending on the type of assessment and how quickly questionnaires are returned.
Typical timeframes are:

• ADHD Assessment: 1–2 weeks
• Autism Assessment: 2–3 weeks
• Combined Assessment: 3–4 weeks
• Learning/Cognitive Assessments: 1–2 weeks

More complex cases may take longer.

How many sessions are involved?
Assessments are completed across multiple components, including:

• Questionnaires
• Assessment sessions
• Interviews
• Report writing
• Feedback session

Total time varies depending on the assessment type:

• ADHD: approx. 12 hours
• Autism: approx. 15 hours
• Combined: approx. 20 hours

Can a Clinical Psychologist diagnose Autism and ADHD?
Yes.
A Clinical Psychologist is qualified to assess and diagnose Autism Spectrum Disorder and ADHD using comprehensive, evidence-based assessment processes.

Do I need to see a paediatrician as well?
Not always.
For ADHD, if medication is being considered, a paediatrician or psychiatrist is required.
For Autism, a psychologist’s diagnosis is often sufficient, although some services (e.g. NDIS or schools) may request multidisciplinary input in certain situations.

What happens if my child is diagnosed with ADHD?
If parents are considering medication, they will need to take the report to a paediatrician or psychiatrist, who can discuss medication options.
If medication is not being considered, families can use the report and recommendations to guide supports at home and school.

What happens after the assessment?
After the assessment:

• A comprehensive report is provided
• A feedback session is completed
• Recommendations are discussed

The report can be used to support planning with schools and other professionals.

Are these assessments covered by Medicare?
Medicare rebates may be available for eligible sessions under a Mental Health Treatment Plan.
However:

• Rebates apply per session, not as a full package
• Report writing and scoring are not claimable

Our team can help explain how this applies to your situation.

Can I use NDIS funding for these assessments?
The NDIS does not fund diagnostic assessments.
However, funding may be used for:

• Functional assessments
• Therapy supports

Do you offer payment plans?
Payment is required per session as the assessment progresses.
Our team will outline the structure in advance so you can plan accordingly.

What if my child is anxious or struggles with assessments?
This is very common.
Assessments are conducted in a flexible and supportive way, and the psychologist adapts the session to suit the individual’s pace and needs.

What if I’m not sure whether to proceed?
That’s completely okay.
You can contact our team and we can help guide you based on your concerns and goals.

Areas We Service ​
​Our Clinical Psychologist based in Rockingham, Western Australia, provides Psychology Assessments to clients across the South of Perth to Mandurah suburbs and surrounding areas.

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Anketell
Atwell
Baldivis
Banjup
Barragup
Bertram
Bibra Lake
Bouvard
Calista
Casuarina
Clifton
Cockburn Central
Coogee

Coolbellup
Cooloongup
Dawesville
Dudley Park
East Rockingham
Erskine
Falcon
Furnissdale
Garden Island
Golden Bay
Greenfields
Halls Head
Hamel

Hamilton Hill
Hammond Park
Herron
Hope Valley
Hopeland
Jandakot
Karnup
Keralup
Kwinana Beach
Kwinana Town Centre
Lakelands
Leda

Madora Bay
Mandogalup
Mandurah
Meadow Springs
Medina
Nambeelup
Naval Base
North Coogee
North Dandalup
Oakford
Orelia
Parklands
Parmelia

Peron
Pinjarra
Port Kennedy
Postans
Ravenswood
Rockingham
Safety Bay
San Remo
Secret Harbour
Serpentine
Shoalwater
Silver Sands
Singleton

South Lake
South Yunderup
Spearwood
Stake Hill
Success
The Spectacles
Wandi
Wannanup
Warnbro
Wattleup
Wellard
West Pinjarra
Yangebup

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 To secure your spot, please fill out the our enquiry form or phone us ​

Enquire Now

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Belong Health's Resource Hub
To further support your child's development, visit our Resource Hub for additional activities, tips, and tools tailored for various needs and diagnoses.
Below are our Child Psychology Free Resources

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Home Therapy Packs
At Belong Health, we are dedicated to providing tailored support that meets the unique needs of each child. Developed by our Paediatric Occupational Therapists, our Home Therapy Packs are specifically designed to align with NDIS goals, offering flexible, practical, and engaging activities for children at home.
To further enhance your approach, consider our Home Therapy Packs, specifically designed to support communication development at home.

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