Autism & ADHD Diagnostic Assessments
Our Formal Diagnostic Assessments
At JARDIN, we provide specialist Autism and ADHD diagnostic assessments for children, adolescents and adults.
Our assessments are neuroaffirming, person-centred and evidence-informed. We aim to provide clear diagnostic understanding, strong clinical reasoning and recommendations that make sense in real life.
Each assessment is completed through a multidisciplinary process. Our Clinical Psychologist provides diagnostic oversight and endorsement, with assessment input from Developmental Education and Occupational Therapy. Clinical Nursing may also be involved where relevant to the person’s age, health history, presentation or support needs.
We assess beyond surface presentation and consider developmental history, communication, sensory processing, masking, attention, executive functioning, emotional regulation, adaptive functioning, daily-life impact and support needs.
JARDIN has particular experience with Autism and ADHD profiles that are often missed, masked, high-support, late-identified or misunderstood.
JARDIN is committed to assessment that is respectful, thorough and useful. Our goal is to help people, families and support systems understand what is happening, what support is needed and what next steps make sense.
What’s Included in Our Diagnostic Pathways
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No additional fee for ADHD assessment when ADHD is considered alongside Autism
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Two diagnostic options: Essential or Comprehensive
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Intake, assessment and feedback session included
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Additional assessment sessions included at no extra cost if clinically required
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Consideration of co-occurring and differential factors where clinically relevant
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Telehealth available Australia-wide
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Limited in-person appointments available in South East Queensland
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Payment plans available
Specialist Autism and ADHD assessment
JARDIN specialises in Autism and ADHD diagnostic assessment across the lifespan. We have particular experience with high-masking, late-identified, high-support and under-recognised profiles.
Multidisciplinary clinical reasoning
Each diagnostic assessment is completed through a multidisciplinary process, with diagnostic oversight from our Clinical Psychologist and assessment input from Developmental Education and Occupational Therapy. Clinical Nursing may also be involved where relevant.
Neuroaffirming approach
We do not assess people through stereotypes or deficit-only assumptions. We consider the whole person, including communication, sensory needs, identity, strengths, support needs, environment and lived experience.
Lived experience informed
JARDIN is autistic-led. Our work is informed by lived experience, clinical training, multidisciplinary practice and the realities we see in everyday life.
Reports that support real-world next steps
Our reports and letters are designed to support understanding, planning and next steps across NDIS, education, employment, healthcare, family understanding and support services.
Accessible pathways
We offer two diagnostic pathways so people and families can choose the option that best fits their needs, budget and reason for assessment.
Cost and Accessibility
At JARDIN, we understand that diagnostic assessments are a significant investment. We aim to keep our Autism and ADHD diagnostic pathways clear, accessible and transparent, while maintaining a high-quality multidisciplinary assessment process.
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No additional fee for ADHD assessment: Where clinically appropriate, ADHD is considered alongside Autism at no extra charge.
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No unexpected assessment-session fees: Both pathways include an intake session, an assessment session and a feedback session. If a third or fourth assessment session is clinically required to complete the diagnostic process, there is no additional assessment-session fee.
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Payment plans available: Please speak with our team if you would like to discuss payment options.
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No Medicare rebates: JARDIN diagnostic assessments are not eligible for Medicare rebates.
Diagnostic Services and Costs
JARDIN offers two diagnostic pathways for Autism and ADHD: Essential and Comprehensive.
1. Essential Diagnostic Assessment (16+) — $1,450
The Essential Diagnostic Assessment is for people aged 16 and over who want diagnostic clarity without requiring a full comprehensive written report.
This pathway may suit people seeking personal understanding, identity clarity, healthcare guidance, workplace or study conversations, or a shorter diagnostic outcome document.
What you receive:
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Autism and ADHD assessment, where clinically appropriate
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ADHD considered at no additional fee when assessed alongside Autism
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consideration of relevant co-occurring and differential factors, where clinically relevant
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intake session, including clinical interview and developmental history review
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assessment session
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feedback session to discuss results and next steps
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assessment completed by a Multidisciplinary Team, including our Clinical Psychologist and either our Developmental Educator, Occupational Therapist or Clinical Nurse
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use of standardised tools where relevant, such as MIGDAS-2, Conners-4, DIVA-5, ABAS-3 and WHODAS 2.0
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8–12 page diagnostic outcome letter or summary letter
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key recommendations
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The same thorough assessment process and diagnostic tools used in our comprehensive service.
This pathway does not include:
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a full comprehensive diagnostic report
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detailed functional capacity reporting
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full adaptive functioning analysis
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detailed NDIS-focused recommendations
Turnaround: Approximately 1–2 weeks after assessment completion.
Payment plans available
2. Comprehensive Diagnostic Assessment (All Ages 3+) — $1,890
The Comprehensive Diagnostic Assessment is for children, adolescents and adults who require a full written report with detailed clinical reasoning, functional understanding and recommendations.
This pathway may suit people and families who want a deeper understanding of the person’s neurodevelopmental profile, not just a diagnostic outcome. It is also often appropriate where detailed evidence is needed for NDIS, education, employment, healthcare, Centrelink, therapy planning, family understanding or formal support systems.
What you receive:
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Autism and ADHD assessment, where clinically appropriate
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ADHD considered at no additional fee when assessed alongside Autism
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intake session, including clinical interview and developmental history review
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assessment session
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feedback session to review results and support planning
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A full multidisciplinary team — Clinical Psychologist, Developmental Educator, and Occupational Therapist, and where clinically relevant, a Clinical Nurse.
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clinical interview and developmental history review
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use of standardised tools where relevant, such as MIGDAS-2, Conners-4, DIVA-5, ABAS-3 and WHODAS 2.0
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sensory, adaptive functioning and functional impact analysis
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consideration of relevant co-occurring and differential factors, where clinically indicated
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full written diagnostic report, usually 40–60 pages depending on complexity
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diagnostic outcome letter or summary letter
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detailed recommendations
What the report explains:
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The Comprehensive report brings together the person’s developmental history, assessment results, clinical observations, functional impact and support needs into one clear written document.
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The report explains the person’s Autism and ADHD profile where clinically relevant, including how their neurodevelopmental differences affect daily life, learning, relationships, sensory processing, emotional regulation, adaptive functioning and participation.
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Where clinically indicated, the report may also consider co-occurring or differential factors such as anxiety, trauma, PTSD, burnout, emotional regulation, learning history or personality-related patterns. These areas are only included where they are relevant to the person’s presentation and assessment questions.
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Recommendations are linked to the person’s assessed needs and may include relevant allied health, medical, educational, community, workplace, home-based or support services.
Turnaround: Approximately 2–4 weeks after assessment completion.
Payment plans available
Important Notes About Both Pathways
ADHD is included where clinically appropriate
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JARDIN does not charge an additional fee for ADHD assessment when ADHD is considered alongside Autism.
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We include ADHD because Autism and ADHD commonly co-occur, can interact in important ways, and understanding both can provide clearer insight into a person’s neurodevelopmental profile.
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JARDIN does not currently offer standalone ADHD-only assessments.
No unexpected assessment-session fees
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Both pathways include an intake session, an assessment session and a feedback session.
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If a third or fourth assessment session is clinically required to complete the diagnostic process, JARDIN does not charge an additional assessment-session fee. We believe clients should know the cost of their diagnostic pathway upfront.
Medication pathways are separate
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Some clients may later choose to explore an ADHD medication pathway.
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JARDIN does not prescribe medication. Although JARDIN provides formal clinical diagnostic assessment, medication decisions are made separately by an appropriately authorised medical practitioner. Depending on the person’s age, location and state or territory prescribing requirements, this may involve a psychiatrist, paediatrician or authorised GP.
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The prescribing clinician may complete their own review, request further information or conduct additional assessment before making medication decisions.
Co-occurring and differential factors are considered
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Where clinically relevant, JARDIN also considers co-occurring and differential factors as part of the diagnostic formulation. This may include anxiety, trauma, PTSD, burnout, learning history and personality-related patterns.
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This is included as part of the assessment process and does not attract an additional fee.
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This does not mean every person is assessed for every possible condition. It means we consider relevant factors so that Autism and ADHD are understood properly and are not confused with, or overshadowed by, other parts of the person’s history or profile.
Autism Diagnostic Reports and NDIS Evidence
Applying to the NDIS usually requires evidence of diagnosis, impairment, functional impact and disability-related support needs.
JARDIN’s Comprehensive Diagnostic Assessment is designed to provide clear clinical reasoning and functional evidence that may support NDIS access, planning, reviews and support coordination.
How JARDIN’s Diagnostic Reports Support NDIS Evidence
JARDIN’s Autism diagnostic assessments are completed through a specialist multidisciplinary process. Each assessment includes diagnostic oversight and endorsement from a Clinical Psychologist, with assessment input from Developmental Education and Occupational Therapy. Clinical Nursing may also be involved where relevant to the person’s age, health history, presentation or support needs.
Our reports are written to explain more than whether diagnostic criteria are met. They also consider how Autism, ADHD and relevant co-occurring factors affect daily life, communication, social interaction, learning, self-care, self-management, sensory processing, emotional regulation, executive functioning and participation.
Autism Diagnosis and NDIS Access
The NDIS identifies Autism diagnosed at Level 2 or Level 3 under current DSM criteria as a condition that is likely to meet the disability requirements when diagnosed by a specialist multidisciplinary team, paediatrician, psychiatrist or clinical psychologist experienced in autism assessment.
JARDIN’s diagnostic process is designed to support this evidence pathway where Autism diagnostic criteria are met, and a Level 2 or Level 3 support level is clinically indicated.
For autistic people diagnosed at Level 1, or where the NDIS requires more information about functional impact, additional evidence may be needed. This may include a Functional Capacity Assessment, Home and Living evidence, support needs report, therapy reports or other functional documentation.
Functional Impact Matters
The NDIS does not consider diagnosis alone in every situation. It may also consider whether a person’s disability is likely to be permanent and whether it substantially reduces their functional capacity in daily life.
JARDIN’s Comprehensive Diagnostic Assessment includes functional and adaptive information, including tools such as ABAS-3 and WHODAS 2.0 where clinically relevant. This helps explain the person’s current support needs across daily life, home, school, work, community and relationships.
Where more detailed functional evidence is required, JARDIN may recommend a separate Functional Capacity Assessment or NDIS Evidence pathway.
Evidence Currency and Functional Capacity
The NDIS may consider how current the evidence is and who provided it. Evidence about functional capacity is often expected to reflect the person’s current circumstances.
JARDIN’s reports aim to provide clear, current and clinically reasoned information about the person’s diagnostic profile, functional impact and support needs at the time of assessment.
Important Disclaimer
JARDIN’s diagnostic assessments are designed to provide robust, clinically reasoned evidence. However, JARDIN cannot guarantee NDIS access, plan changes or funding outcomes.
The NDIA makes all access and funding decisions. Each application is considered individually, including diagnosis, impairment, functional impact, support needs and the evidence provided.
For more information on NDIS eligibility, visit: NDIS Guidelines
For Western Australian families, the Comprehensive Diagnostic Assessment can support two-clinician endorsement requirements where this is requested for education pathway purposes.
The report includes multidisciplinary clinical input and endorsement of the diagnostic outcome and findings.
Requirements can vary depending on the school, education provider, funding body or application pathway, so families should confirm any specific evidence requirements before relying on a report for a particular purpose.
Western Australian Education Pathways
ADHD Assessment and Medication Pathways
JARDIN does not charge an additional fee for ADHD assessment when ADHD is considered alongside Autism.
We include ADHD in our diagnostic pathway because Autism and ADHD commonly co-occur and can interact in important ways. Understanding both can provide clearer insight into a person’s neurodevelopmental profile, including attention, executive functioning, emotional regulation, sensory needs, masking, daily-life impact and support needs.
Some clients may also wish to explore whether ADHD medication could be an option after diagnosis. JARDIN provides formal clinical diagnostic assessment, but we do not prescribe medication and we do not offer standalone ADHD-only assessments.
If ADHD is diagnosed, clients may choose to take their report to their GP to discuss referral or medication options. Medication decisions are made separately by an appropriately authorised medical practitioner. Depending on the person’s age, location and state or territory prescribing requirements, this may involve a psychiatrist, paediatrician or authorised GP.
The prescribing clinician may complete their own review, request further information or conduct additional assessment before making medication decisions. This is because they are responsible for medication safety, suitability, prescribing requirements and ongoing monitoring.
JARDIN’s role is to provide clear diagnostic reasoning and help clients understand their neurotype. Medication decisions sit separately with the prescribing medical practitioner.