Private Autism Assessment London

A private autism assessment provides a detailed evaluation for individuals who suspect they may be on the autism spectrum. Private Autism offer a doctor-led autism assessment service in our London private ASD clinic.

Pre-Assessment Screening

Full Online Assessment with an Autism Specialist

Autism Report - Diagnosis and Support Plan

Supporting Letters (For Work/School)

Benefits of a Private Autism Diagnosis Service

Choosing a private autism assessment service can offer several advantages, including:

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    Quicker Access: Unlike NHS services, our private assessments typically have no waiting times.

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    Accurate Assessments: Our assessments our based upon UK diagnostic criteria and guidelines, providing accurate assessment.

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    Comprehensive Reports: A detailed report outlining the diagnosis, strengths, and areas of support.

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    Tailored Support: Personalised recommendations for therapy and ongoing support.

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    Specialist team: Our team of private doctors provide expert autism assessments that consider your unique experiences and challenges, ensuring you feel heard and supported.

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The Autism Assessment Process

Initial Screening Test

The journey begins with an initial screening test. This can be done through an online test, offering convenience and privacy from your own home.

Autism Testing and Diagnosis

Using evidence-based tools and methods, our private ASD clinic conducts in-depth autism testing. This involves:

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    Autism screening tests to identify symptoms.

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    Clinical assessments by experienced professionals.

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    Detailed reports outlining strengths, challenges, and recommendations.

Post-Diagnosis Support

Following the diagnosis, we offer autism therapy services and support tailored to your needs. Our neurodiversity assessment ensures that you receive holistic care, addressing co-occurring conditions and promoting overall well-being.

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Private Adult Autism Assessments

At Private Autism, we offer adults with Autism not only an initial online Autism assessment but also;

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Autism support follow-ups

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Additional letters + extenuating circumstance

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Repeat prescriptions

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A psychiatrist's second opinion

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Travel letters - to safely travel with your controlled drug medication

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Computerised neuropsychology testing 

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Autism Psycho-education and counselling 

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Personalised therapy to support you on your Autism journey

We provide accountability and Autism coaching to help manage the day-to-day executive function tasking, including daily check-ins, body doubling. We have a shared care treatment plan with your GP to give you the best treatment and advice.

adult adhd assessment

What are Autism Spectrum Disorders (ASD)?

Autism spectrum disorder assessment is essential for individuals experiencing challenges with social interactions, communication, and behaviour. Autism spectrum disorders include conditions such as Autistic Disorder, Asperger’s Syndrome, and Pervasive Developmental Disorder (NOS). Early private autism evaluation can provide clarity and access to appropriate interventions.

What is Asperger's Syndrome?

Asperger’s Syndrome is a form of high-functioning autism that affects social interactions and communication. Individuals with Asperger’s may exhibit high intelligence, strong subject interests, and strict routines. Our private autism assessment cost includes thorough Asperger’s testing to provide a precise diagnosis and support plan.


These are some of the common Autism symptoms you or your child may be experiencing on a day-to-day basis.

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    Struggling with conversations or social cues

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    Difficulty making and maintaining friendships

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    Repetitive movements (e.g., hand-flapping, rocking, spinning)

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    Strict adherence to routines and difficulty coping with change

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    Intense focus on specific topics or interests

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    Over- or under-reactivity to sensory input (e.g., sounds, lights, textures, smells)

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    Preference for specific textures in food or clothing

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    Strong attention to detail but struggles with big-picture thinking

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    Emotional regulation difficulties, such as meltdowns or shutdowns

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    Anxiety, depression, or heightened emotional responses

Our ASD Services in London

We offer a comprehensive ASD service, providing thorough assessment and expert management for all autism spectrum disorders. Our service is designed to support children, adolescents, and adults, delivered by experienced psychiatrists and psychologists with extensive expertise in autism care.

The process begins with an initial assessment by our medical specialists, incorporating a gold-standard diagnostic interview to evaluate how ASD affects daily life.

To confirm the diagnosis, we use a series of online questionnaires, completed by you—or in the case of a child, by parents and teachers. This allows us to collect objective, reliable data to establish a baseline and measure ASD symptoms accurately. If ASD is diagnosed, this data becomes a valuable tool in monitoring progress, assessing treatment effectiveness, and making adjustments when necessary.

We understand that an ASD diagnosis can be a significant moment for you and your family. Our consultant psychiatrists and paediatricians will guide you through the next steps, offering tailored support and management strategies to help navigate the future with confidence.

Book An Appointment Today
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How We Diagnose Autism

We understand that medical assessments can feel overwhelming, but there’s no need to worry—our autism assessment is a straightforward and supportive process. No health or blood tests are required. Instead, our specialists focus on observing how you interact socially and communicate with others. We also explore your childhood development and any mental health challenges you may have experienced.

To ensure a thorough and accurate diagnosis, we use a range of validated diagnostic tools, including:

  • Autism Diagnostic Observation Schedule (ADOS) – for children
  • School Report – for children
  • Autism Diagnostic Interview-Revised (ADI-R) & Client Questionnaire
  • AQ-10 – Autism Spectrum Quotient screening tool
  • AQ-50 – Self-assessment questionnaire measuring autism-related traits
  • EQ-40 – Empathy Quotient self-report measure
  • RAADS-R – Ritvo Autism Asperger Diagnostic Scale – Revised
  • Relative Questionnaire – gathering insights from close family members
  • GAD-7 – Generalised Anxiety Disorder assessment (7-item scale)
  • PHQ-9 – Patient Health Questionnaire (9-item scale for depression severity and treatment response)

Following the assessment, your results will be carefully evaluated against the diagnostic criteria outlined in the International Classification of Diseases (ICD-10) and the National Institute for Health and Care Excellence (NICE) guidelines. These internationally recognised frameworks, including the DSM-IV criteria, ensure a precise and reliable diagnosis of ASD and Asperger’s syndrome.

Got a Question?

Not sure about booking an appointment just yet? Need more info about the process? Ask us anything using our contact form below!

You can also call us on 020 39897789 or email at  info@privateadhd.com

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Autism Assessment FAQ

A few of our frequently asked questions about assessments

What is a private autism assessment?

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A private autism assessment is a diagnostic evaluation conducted by a specialist clinic to determine if an individual is on the autism spectrum. It includes interviews, observation, and standardised testing.

How much does a private autism assessment cost?

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The cost of a private autism assessment varies but typically ranges from £2,000 to £2,500, depending on the clinic and the complexity of the evaluation. At Private Autism our online autism assessments cost £1,900.

Can I get an online autism assessment?

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Yes, Private Autism offers online autism assessments that provide the same thorough evaluation as in-person services.

Our Reviews

Very thorough and detailed consultation. Was completely bespoke and a great help. Highly recommend to anyone looking for a diagnosis and further treatment tailored to you!
Kyle Vosper
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Excellent. Calm, clear, and very easy to talk to! He made the assessment feel comfortable and thorough, and I really appreciated how well he explained everything. I received my diagnosis the same day, and the whole process was smooth and supportive from start to finish. Angel was fantastic, so kind and responsive, which really helped ease my nerves beforehand. I’d absolutely recommend PrivateADHD to anyone and everyone who will listen to me!
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After being diagnosed in my childhood years but then on adult years finding it very difficult to overcome ADHD symptoms I reached out to my doctor but was told I had to be reassessed I’ve waiting so long due to NHS waiting times I came across private ADHD I had my consultation call and was booked very quickly on days I had my assessment which went very well I felt calm and was able to express my feelings without fear of being judged getting anxious or frustrated I was listened to...
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I had a consultation and he was very proffesional. I felt seen and learned a lot
zero hero
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Efficient All information explained
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If you’re searching for a reliable, professional, and compassionate provider of private ADHD assessments, I highly recommend PrivateADHD.com. From start to finish, my experience was seamless, supportive, and genuinely life-changing. The process of getting an ADHD diagnosis can often feel overwhelming, but PrivateADHD.com made it incredibly straightforward. The website is user-friendly, the booking process was quick, and I was able to speak with a qualified specialist in a matter of da
Aaisha Mapkar
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"Very helpful doctor. His deep understanding of the unique challenges that come with ADHD is evident in every interaction and his support extends beyond just medical treatment - for eg. he routinely discusses and offers practical strategies to manage daily life. He takes the time to understand each patient’s individual needs and provides tailored advice that makes a real difference. For anyone seeking a comprehensive, well-rounded approach to ADHD treatment, I would highly recommend."
Anonymous
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I had a consultation and it went so much easier and better than I imagined
Verified Patient
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Im not going to lie I felt very relieved after because I never knew anything and had absolutely no information but they informed me very well on everything and provided support
Mr. Casual
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Very quick to respond and to answer any questions. Friendly service
Verified Patient
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I had a great experience and I got my diagnosis that Was needed. I spoke to Angel and she stayed in contact with me the whole time. Very friendly service and very helpful, thank you so much, Private Adhd clinic. I also spoke to Oliver Trafford for my ADHD assessment and he was excellent and put me at ease and answered every question. Both angel and Oliver went above and beyond for my needs. Thank you very much.
Lola
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Had a consultation. Cannot recommend highly enough, I had been struggling with symptoms that had been affecting my life for some time. I went to the GP and was told the waiting time was 3-5 years.Booking with privateadhd.con was surprising easy. Once I chose my appointment and confirmed the booking I was sent a pre assessment questionnaire that took about 30 mins to complete, I filled this out with my partner.After this I received a phone call from the doctor and we confi
Vinay Taggar
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Excellent.
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I had the pleasure of attending ADHD Management training session with Private ADHD LLC and was genuinely impressed. The content was expertly delivered who combined clinical depth with clarity and a practical approach. Vinod provided seamless technical support, making the whole experience smooth and engaging. The session,exceeded expectations, well-structured, interactive, and highly relevant for clinicians involved in ADHD assessment and treatment...
William Acquaah
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Very understanding and explained the process very clearly for me.
Verified Patient
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It was ny 1st time i was unsure of what was expected, but it was okay as I normally only do face to face appointments.
Verified Patient
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So calm and puts you at ease, excellent service.
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I can’t thank this clinic enough! The ADHD assessment was thorough, and the staff were so helpful. After my ADHD diagnosis, they explained all my options, including ADHD medication, which has helped me stay organised and focused. Super helpful and friendly every step of the way
pejman padide
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The experience was made as easy as possible, which helped me massively. Very easy to talk to and ask questions to also.
Verified Patient
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It was remarkable to hear about the high level of clinical expertise, empathy, and support that he brings to his ADHD practice. As he described his assessment process, it became clear that he has a deep understanding of how to make what is often a stressful and overwhelming experience feel manageable and reassuring for his patients.
Shoumi Jeyarajah
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"The experience was made as easy as possible, which helped me massively. Very easy to talk to and ask questions to also."
Verified Patient
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"Best money I have spent - Highly Recommended Mercedez was very helpful and answered my questions very promptly on Whats app, and Mercedez arranged my appointment very quickly, within a few days. They were very thorough, helpful and understanding. I finally got the validation I needed after all these decades of stress and struggle. I don't have to feel a failure anymore. It is simply the Best Money I have spent. I got the reports sent to me very quickly. Many many thanks Mercedez, and PrivateADHD. Highly Recommended"
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Angel and Oliver made the whole day process less stressful and I was seen in a really short amount of time so I highly recommend.
Danielle Brooks
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I have attended two training courses (diagnosis, medication and management of ADHD) as a professional, on the recommendation of another member of our MDT. I was super-impressed. The delivery was very easy to engage with (presentations, group discussion and feedback, opportunity for plenty of questions, etc). I highly recommend training courses to professionals working in this field.
Assess and Educate with Karen
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"Dr. Kooner is the best doctor both myself and my daughter have had the pleasure to meet and work with. He has transformed our lives in the way he listened to us and diagnosed both of us. He has an incredible bedside manner, very thoughtful, measured and never judging. He also has a very good aftercare service and you can see and feel he is genuinely caring for you and seeking the best possible outcome. I highly recommend Dr.Kooner"
Peter M
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"I've never been listened to since I've been able to go to the doctors myself for help... It wasn't until I seeked private help with Dr Kooner at PrivateADHD, where I was finally listened to and taken seriously. He went through everything in so much detail and diagnosed me with ADHD. We have regular catch ups to ensure the medication is working for me, which is great... Since being placed on the recommended medication by Dr Kooner, my life has changed for the better, everyone around me has seen such a positive outcome and change."
Betheney
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"Absolutely amazing company and people working for it,  couldn’t recommend more. Life changing decision and one of the most positive experiences I have ever had. My doctor it’s so easy to talk to, so compassionate about what he does, it makes so easy to connect and feel so comfortable to open up and he totally honest. Thank you from the bottom of my heart to Dr Kooner and all the team!"
Agnes Zwierk
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"Dr Kooner actually spent ages discussing my adult son & related issues. It is easy to make appointments, Dr Kooner is always on time, lovely to speak to & the medication arrives pretty much within 48 hours. I am just so glad that we came across Dr Kooner & Private ADHD. Thank you Team Dr Kooner!"
Lucy
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"Dr. Kooner is the best! He is so reliable and has great and fast communication. When I first moved to London, it was very difficult for me to get the ADHD prescription, I was taking in the states. I thought I wasn’t going to be able to take my medication here anymore until I found PrivateADHD. They made it so easy and stress-free to get my prescription and I cannot recommend them enough."
Estee
Verified Review Google & Trustpilot
"Very helpful doctor. His deep understanding of the unique challenges that come with ADHD is evident in every interaction and his support extends beyond just medical treatment - for eg. he routinely discusses and offers practical strategies to manage daily life. He takes the time to understand each patient’s individual needs and provides tailored advice that makes a real difference. For anyone seeking a comprehensive, well-rounded approach to ADHD treatment, I would highly recommend Dr. Kooner."
Anonymous
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"After several difficulties with pharmacies previously due to the stock issues when I was under the GP temporarily I was so grateful that Private ADHD was able to see me within 48 hours and I had medication delivered to my house which was a pleasant surprise.

Cannot recommend enough, efficient, thorough and seamless experience.I felt the prices and process was explained clearly I understood how many I will need before getting transferred to the GP"
Parth Verg
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"Very professional. Helpful and took his time to explain everything. A positive appointment"
Kelly Hyde
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"I waited nearly 2 years for an NHS ADHD diagnosis; following the NHS appointment in April I was told the wait to start medication would be 8-10 months. In complete despair, I decided to seek private treatment- I contacted Dr Kooner and was able to book a diagnostic reassessment and initial medication titration appointment within 24 hours, and received my first prescription within 3 days. Having access to medication has been an absolute game changer for me and I am so thankful to Dr Kooner for this!"
Sophie
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"I am on a waiting list for adhd but could not wait so went private I see dr kooner and was great understanding, sympathetic and empathic and he was a good listener and I felt relaxed chatting with him"
Shane Marriott
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"Had a consultation with Dr Pav. Cannot recommend highly enough, I had been struggling with symptoms that had been affecting my life for some time. I went to the GP and was told the waiting time was 3-5 years.Booking with privateadhd.co.uk was surprising easy. Once I chose my appointment and confirmed the booking I was sent a pre assessment questionnaire that took about 30 mins to complete, I filled this out with my partner.After this I received a phone call from the doctor and we confirmed the video call appointment for the very next day..."
Vinay Tagger
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"I had an exceptional experience with PrivateADHD for my ADHD diagnosis, and for anyone stuck on the lengthy public waitlist, I highly recommend taking the leap and seeking a private assessment through them...

From day one, PrivateADHD was incredibly responsive and supportive. Out of all the private clinics I reached out to, they stood out for their kindness and willingness to address any question or concern I had along the way. I’m genuinely grateful for the care they showed me, and I couldn’t be happier with my choice to go through them..."
Ash Jayne
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"Wonderful response time and has always made time for my questions and concerns, the past services helped me out many times over the past year and I’m sure will continue to support me and plenty other in the future!"
Dylan
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"Great service. Very knowledgeable about everything ADHD and super fast service. Would highly recommend 👌"
Fleur
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"I have been affected by ADHD symptoms all of my life and decided after family members had been diagnosed and treated with good results that I should try and get an assessment and see if I could benefit from treatment. I was assessed by Dr Kooner over a video chat and found him to be very thorough, informative, patient and helpful... I felt listened to and that I was given informed choice and that my views and opinion mattered. He didn’t rush me and I felt that the experience was safe and comfortable..."
Seana
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"I cannot recommend this psychiatrist enough. They have helped me with many problems, providing exceptional support and care."
Meera Ravi
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"I have been suffering from a significant number of ADHD symptoms as a child, which worsened over the years. This convinced me to get assessed for ADHD privately, as the NHS waiting list is extremely long (up to 4 years for an assessment).

I liked how he intensively explained what causes ADHD, how ADHD runs in families, and such. Finally, as someone who has ADHD, he completely understands the debilitating and crippling effects ADHD has had on me academically, socially, and mentally throughout the years."
Namaan
Verified Review Trustpilot