Diagnostic Services for ADHD and Autism Spectrum Disorder.

The Autism and ADHD Diagnostic Centre provides a comprehensive, multidisciplinary diagnostic service for individuals who think they may be living with ADHD or Autism Spectrum Disorder.

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Comprehensive Autism and  ADHD Diagnostic Services.

Our experienced multidisciplinary team specialises in Autism and ADHD, led by Consultant Psychiatrists, offering professional and confidential services. We are based in Glasgow and have offices in London. We also access meeting rooms in major cities such as Edinburgh, Birmingham and Manchester.

We provide diagnostic assessments using Gold Standard tools like:

Diagnostic Interview for Social and Communication Disorders (DISCO)
Autism Diagnostic Observation Schedule (ADOS)
Autism Diagnostic Interview Revised (ADI-R)
Diagnostic Interview for ADHD in Adults (DIVA-5)
Young Diagnostic Interview for children aged 5-17 (Young DIVA -5)
ADHD Child Evaluation (ACE and ACE+v2)

We also offer remote assessments for those unable to attend in person.

Find out more about us

Why choose the Autism and ADHD Diagnostic Centre?

Minimal Waiting Times

Due to the large number of disciplines working with the team, we have minimal waiting times for appointments

Central Locations

Locations in Glasgow, London and Edinburgh city centre.

Cost Effective

Our fees are competitively priced for the services and  skills that we offer.

Recommendations

A positive diagnosis will come with multidisciplinary recommendations.

Detailed Report

Findings from all examinations will be documented in a comprehensive report.

Gold Standard

Our Team only use Gold Standard Diagnostic Tools to conduct assessments.

Digital Consultations

If face to face appointments are not possible, clients can be seen using digital video technology.

Multidisciplinary Team

Highly qualified multidisciplinary team led by Consultant Psychiatrists.

      EXCELLENT  
   Based on 35 reviews 
    
 
 
 
   
 
 
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   Chloe Tregellis 
 16 December 2025
 
 
 Trustindex verifies that the original source of the review is Google. 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
 
 
 Trustindex verifies that the original source of the review is Google. 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
 
 
 Trustindex verifies that the original source of the review is Google. 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
 
 
 Trustindex verifies that the original source of the review is Google. 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
 
 
 Trustindex verifies that the original source of the review is Google. 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.
  
 
      Posted on Google  
   
   Declan Rodgers 
 4 November 2025
 
 
 Trustindex verifies that the original source of the review is Google. 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
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service - compassionate, engaged and thorough throughout the process. Friendly and prompt communication. Highly recommended.
  
 
      Posted on Google  
   
   Margaret Ferguson 
 23 October 2025
 
 
 Trustindex verifies that the original source of the review is Google. 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
 
 
 Trustindex verifies that the original source of the review is Google. 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.
  
 
      Posted on Google  
   
   Tim Stables 
 2 October 2025
 
 
 Trustindex verifies that the original source of the review is Google. 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.

Make a referral

Making a referral is easy.

If you think that you or someone you know would benefit from an Autism or ADHD assessment with a member of our team, make a referral via our form.

Pay in interest-free installments with:

Complete referral form

Autism Spectrum Disorder

Autism is a lifelong developmental disability that affects how a person communicates with and relates to other people. It also affects how they make sense of the world around them.

Find out more

ADHD

Attention deficit hyperactivity disorder (ADHD) is a condition that affects people’s behaviour. People with ADHD can seem restless, have trouble concentrating and may act on impulse.

Find out more

Occupational Therapy

Occupational therapy helps individuals manage everyday tasks by developing practical skills and strategies. It supports independence at home, at school, at work, and in the community, improving daily life and wellbeing.

Find out more

What Are the NICE and SIGN Guidelines?

At Autism & ADHD Diagnostic Centre, all our assessments follow NICE and SIGN guidelines—the trusted national and Scottish standards for high-quality autism and ADHD diagnosis. These evidence-based guidelines ensure consistency using recognised tools such as ICD-11, DSM-5, ADOS-2 and ADI-R. Our approach gives you clarity, accuracy, and widely accepted reports from your first consultation through to your final diagnosis and support.

Learn More About Our NICE & SIGN Approach

Procurement via CPS Framework

Autism and ADHD Diagnostic Centre has been appointed as a supplier to Countess of Chester Hospital NHS Foundation Trust – Commercial Procurement Services’ Autism and ADHD Assessment Services framework (Provider Selection Regime). Commissioners can procure our services directly through this framework as a compliant route under the PSR.

Video Library

An accurate diagnosis is more than just a label; it is a clinical roadmap. In the UK, the diagnostic process, whether via the NHS or a private provider, must meet specific standards to ensure that the individual’s needs are correctly identified and that co-occurring conditions are not overlooked.

This video examines why a rigorous, evidence-based assessment is essential for long-term health, workplace protections, and effective clinical intervention.

Getting an Accurate Autism or ADHD Diagnosis

For an Autism or ADHD assessment to be clinically robust, it shouldn't rely on a single opinion. A Multidisciplinary Team (MDT) brings together specialists from different clinical backgrounds to ensure a holistic and accurate diagnosis.

This video breaks down who sits on a standard UK MDT, how they collaborate, and why this "consensus-based" approach is the most effective way to identify neurodevelopmental conditions while ruling out co-occurring mental health or physical issues.

Autism and ADHD Diagnostic Centre: Our Multidisciplinary Team

While often discussed as separate conditions, Autism and ADHD frequently co-occur. This is colloquially known as "AuDHD." This video breaks down the neurological mechanics of both, moving past the common stereotypes to explain how they actually function within the brain.

We examine the tension between the autistic need for routine and the ADHD drive for novelty, and how these competing systems create a unique internal experience.

What is Autism and ADHD?

Book a Free Consultation

Your journey to answers begins here. Speak to our expert team and take the next step with a free consultation.

Pay in interest-free installments with:

Book a Free Consultation

Diagnostic Services for ADHD and Autism Spectrum Disorder.

Comprehensive Autism and  ADHD Diagnostic Services.