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Autism Assessment Inverness

Private autism assessment and diagnosis for adults, teenagers and children living in Inverness and across the Highlands — led by GMC-registered consultant psychiatrists, delivered online or in person at our Edinburgh and Glasgow clinics, with no NHS waiting list.

What is a Private Autism Assessment?

A private autism assessment is a comprehensive clinical evaluation carried out by a consultant psychiatrist to determine whether an individual meets the diagnostic criteria for Autism Spectrum Disorder (ASD). The assessment examines social communication, sensory processing, behavioural patterns and developmental history against internationally recognised standards including DSM-5-TR and ICD-11.

For patients in Inverness and across the Highlands, assessments are delivered either online via secure video — the practical default given the geography — or in person at our Edinburgh or Glasgow clinics. Every assessment is delivered by consultant psychiatrists with specialist expertise in adult and child neurodevelopmental conditions, follows SIGN 145 clinical guidelines, and uses validated tools such as the ADOS-2, ADI-R and DISCO. You receive a formal diagnostic report recognised by employers, schools and NHS Scotland for shared care purposes.

Adult autism assessment consultation in Inverness with a private consultant psychiatrist

Why Many Highland Patients Choose a Private Assessment

NHS Highland's neurodevelopmental assessment service is under exceptional pressure. The Highland Council confirmed in March 2026 that more than 2,000 children and young people are waiting for assessment through the Neurodevelopmental Assessment Service (NDAS) at The Pines in Inverness, with current waits of around three years. For adults, NHS Highland has been reported in Scottish Parliament briefings as one of three Scottish health boards with maximum adult assessment waits of over five years.

Local private options in Inverness focus primarily on children. There is no consultant psychiatrist-led private adult autism assessment service based in the Highlands. For Inverness adults — and for families who want a single clinical pathway that covers both autism and ADHD — a remote private assessment with our team provides clinically rigorous diagnosis without years of waiting.

Who Is the Autism Assessment For?

Our autism assessment service supports Inverness and Highland patients including:

  • Adults who suspect they may be autistic and want a formal diagnosis
  • Women and girls whose autistic traits have been overlooked or masked for years
  • Children and teenagers showing signs of social communication difficulties
  • Parents seeking clarity for their child's nursery, school or college needs
  • Patients on The Pines NDAS waiting list who need a quicker route
  • People referred privately by their GP, employer, occupational health team or solicitor
  • Patients who suspect both autism and ADHD and want both assessed in one pathway
  • Families in remote Highland communities for whom online assessment is more practical than NHS travel to a regional centre

What the Autism Assessment Covers

Full developmental and early childhood history

Social communication and social interaction patterns

Restricted, repetitive behaviours and routines

Sensory sensitivities and processing differences

Co-occurring conditions such as ADHD, anxiety or OCD

Educational, occupational and relational impact

Our Autism Assessment Services for Inverness Patients

Adult Autism Assessment

  • For individuals aged 18 and over across Inverness and the Highlands
  • Delivered online via secure video — no travel required
  • In-depth clinical interview with a consultant psychiatrist
  • Standardised tools including the ADOS-2 and DISCO where appropriate
  • Informant interview with a family member where possible
  • Particular sensitivity to female and late-diagnosed presentations
  • Formal written diagnostic report and post-diagnosis discussion

Child & Teen Autism Assessment

  • Assessments for children and young people up to age 17
  • Online appointments for parent interviews and feedback sessions
  • In-person observation at our Edinburgh or Glasgow clinic where required
  • Parent and carer interviews using ADI-R style methodology
  • Direct observation using ADOS-2 modules appropriate to age
  • Liaison with Highland schools, nurseries and educational psychologists
  • Reports suitable for Additional Support Needs planning and NDAS referral
  • Family feedback session to explain results in accessible language

Diagnostic Tools and Clinical Standards We Use

Gold-Standard Assessment Tools

  • ADOS-2 (Autism Diagnostic Observation Schedule, Second Edition)
  • ADI-R (Autism Diagnostic Interview – Revised)
  • DISCO (Diagnostic Interview for Social and Communication Disorders)
  • AQ, RAADS-R and EQ self-report screening measures
  • Structured developmental history and collateral interviews

Clinical Frameworks We Follow

  • DSM-5-TR diagnostic criteria for Autism Spectrum Disorder
  • ICD-11 framework recognised by NHS Scotland
  • SIGN 145 — Scottish national guideline on autism assessment
  • NICE guidelines CG128 (children) and CG142 (adults)
  • Neurodiversity-affirming and strengths-based approach throughout

How the Assessment Works

Step 1

Pre-Assessment Screening

A short call to confirm the assessment is right for you, followed by validated questionnaires completed before your appointment.

Step 2

Clinical Interview & Observation

A detailed consultation with a consultant psychiatrist covering developmental history, current functioning and structured observational assessment — conducted online from your home in Inverness.

Step 3

Multi-Source Review

Where helpful, the psychiatrist will review school records, prior medical notes and information from a parent, partner or close family member.

Step 4

Diagnosis & Written Report

You receive a comprehensive written diagnostic report and a feedback session covering results, recommendations and next steps for support in the Highlands.

Why Choose AADC for Autism Assessment in Inverness?

  • Consultant psychiatrist-led — not a psychologist-only service
  • Both autism and ADHD assessable in one clinic, often in one pathway
  • No waiting list — appointments typically available within weeks, not years
  • Fully remote assessment available — no travel from the Highlands required
  • Diagnostic reports accepted by Highland schools, employers and NHS Highland for shared care
  • Adult autism specialism — including late-diagnosed adults and female presentations
  • Direct communication with your treating psychiatrist throughout

After Your Autism Diagnosis

A diagnosis is not the end of the process — it's the beginning of better self-understanding and access to support. Following your assessment, we can help with:

  • Recommendations for reasonable adjustments at work or in education
  • Signposting to Highland-based support including Highland One Stop Shop for autistic adults aged 16+
  • Treatment of co-occurring conditions such as ADHD, anxiety or depression
  • Letters of support for DSA, Access to Work, PIP and Adult Disability Payment
  • Family and partner sessions to help loved ones understand the diagnosis

Clinically Regulated Professionals

Autism Assessment Inverness — Frequently Asked Questions

How long is the NHS autism assessment waiting list in Inverness?

According to the Highland Council, more than 2,000 children and young people are waiting for assessment through The Pines (NDAS) in Inverness, with current waits of around three years. For adults, NHS Highland has been identified in Scottish Parliament briefings as one of three Scottish health boards with maximum adult assessment waits of over five years. Our private service has no waiting list.

How much does a private autism assessment cost for Inverness patients?

Our private autism assessment is £1,500 paid in full, or available on a monthly payment plan from £375 per month. The fee includes the full diagnostic pathway and your written report. If you'd like both autism and ADHD assessed together, a combined assessment is £1,950 pay-in-full or £487 per month — more cost-effective than booking each separately.

Do Inverness patients need to travel for the assessment?

No — most Highland patients are assessed entirely online via secure video. Adult assessments are routinely completed remotely. For children, parent interviews and feedback sessions are online; only the direct child observation may require an in-person visit to our Edinburgh or Glasgow clinic, depending on the case. We work hard to minimise travel for Highland families.

Do I need a GP referral for a private autism assessment?

No. You can self-refer directly to our service. We will, however, request your consent to liaise with your Inverness or Highland GP to ensure continuity of care and to support shared care arrangements after diagnosis.

Is a private autism diagnosis recognised by NHS Highland and schools?

Yes. Our diagnoses are provided by GMC-registered consultant psychiatrists who are members of the Royal College of Psychiatrists, using DSM-5-TR and ICD-11 criteria and SIGN 145 standards. Reports are accepted by NHS Scotland, Highland schools, employers and the DWP.

Can adults be diagnosed with autism for the first time?

Yes. A large proportion of our adult patients are diagnosed for the first time in their 20s, 30s, 40s or later. This is particularly common in women and individuals with strong masking abilities, whose autistic traits were not recognised in childhood. Adult-first diagnosis is one of our specialist areas.

Do you assess both autism and ADHD?

Yes. Autism and ADHD frequently co-occur, and we are one of the few private clinics serving the Highlands that can assess both within a single consultant-led pathway. For Inverness patients this is particularly valuable, as no local Highland private provider offers combined adult autism and ADHD assessment.

How long does the autism assessment process take?

From your first appointment to receiving the written report, the full process typically takes between two and six weeks, depending on your availability for clinical sessions and how quickly informant information can be gathered.

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Chloe Tregellis profile picture
Chloe Tregellis
16 December 2025
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I will be forever grateful for the experience I had with my assessment for autism and ADHD. After feeling failed by the NHS I knew I needed to take steps privately but was worried about how it would go and of course the cost. I can safely say it was incredible value for how comprehensive and life changing it has been. Andy was the most incredible clinician making me feel safe and secure in what is a vulnerable and daunting situation. I felt so assured by his wealth of knowledge and experience. I felt able to express myself throughout and that I was given every opportunity to get the most out of the whole process. The follow up and report were also fantastic and again very comprehensive. All the staff from the centre were helpful and sensitive in all communication and I can't recommend the place highly enough. Thank you!
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David Robertson
16 December 2025
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After being told by the NHS it will be some time and being so uncomfortable in your own head. I looked around, and after a call to see how things worked, I got the information pack and booked everything there and then, and I’ve found myself now, it explains my childhood, my teens and into my adulthood. I can’t recommend these guys enough, nothing was rushed, took as long as it took Mine was even done during my time out the country, all via Teams. At 46 I can breathe today!
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Donna G
6 December 2025
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From start to finish the process was easy and straight forward! My daighter was aprehensive about attending, Fiona made her feel comfortable and at ease. The forms were a little overwhelming to complete, however, we understand the need for them. Thank you for the wonderful service.
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Andy Gravett
5 December 2025
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A great service and very professional and caring team , the process albeit quite daunting has really helped me and the assessment team were very kind and considerate throughout.
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Heather Hearn
21 November 2025
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I am so grateful that we approached the Autism and ADHD Diagnostic Centre about my grandson. We had been struggling with him for years, and finally decided we couldn't wait on the NHS any longer. This was the best decision we've ever made. The staff have been nothing but helpful and caring from day one. Every enquiry was answered promptly with care and compassion. Our appointment was a positive and non-stressful meeting and I would highly recommend using Autism and ADHD Diagnostic Centre to anyone.
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Declan Rodgers
4 November 2025
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I visited this establishment twice for two assessments with Fiona and Yvonne. I was treated with respect, the staff were polite, patient and understanding.
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Alan Hannah
27 October 2025
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Excellent service - compassionate, engaged and thorough throughout the process. Friendly and prompt communication. Highly recommended.
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Margaret Ferguson
23 October 2025
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We recently had a autism assessment with Andy for our son Ewan, I will struggle to find the words to explain how positive the experience was, from the first email I sent to the appointment with Andy was smooth and the communication from Kirsty and Dani was quick and very efficient .. shout ok to them😀. Andy is warm, approachable and supportive, putting my husband, myself and Ewan at ease right away. As soon as I sat down I knew this was the right place to have the assessment. Andy's knowledge and expertise is outstanding, put us at ease and explaining all parts of the assessment with us, going through every part, making sure we were ok and we understood the process. What stood out for us, was Andy's genuine kindest, when a situation like this can be scarey .. going for an assessment like this is not an easy process, but the outcome means that our son can move on with his life, he's not "strange" or "weird" He just has a different way of thinking and processing. Andy was able to help with the way we communicate with Ewan, going forward. If anyone is struggling with thinking you maybe living with autism or ADHD .. go and have this assessment done. It will change your life. It will let you see that this diagnosis is a different way of thinking 🤔 and wear that with pride. Thank you Andy.
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Shelbie Gillon
7 October 2025
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I have went 27 years of my life thinking I was odd and very strange with my behaviours I would do or say, but few weeks I had my assessment done was so relaxed lovely people around and made sure I was okay throughout the whole process witch is big for me as I suffer with social anxiety also, few weeks on had my phone call to give me my results again I was giving my results and lovely words were spoken on how my freshly diagnosis is okay and it’s fine to have Autism at start the first week was such a weird mix of emotions but now it has brought so much comfort to my life now knowing why I am the way I am. I really can’t thank yous enough for giving me my life back I can now finally move on known everything is okay truly incredible all the work that’s put in and to make everyone feel so welcome and relaxed.
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Tim Stables
2 October 2025
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Andy was professional, yet incredibly down to earth and comforting. After having a previous diagnosis, this assessment felt much more about myself and my experiences. No regrets having both a private and NHS diagnosis now I’ve seen the differences in procedures. Many thanks, guys.
Person booking a private autism assessment consultation

Book Your Autism Assessment in Inverness Today

If you or your child are facing years on the NHS Highland waiting list, you don't have to wait. Our consultant psychiatrists offer fast, rigorous, neurodiversity-affirming diagnostic assessments — delivered online to anywhere in the Highlands, with clear next steps and ongoing support after diagnosis.

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