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FOR ADULTS

Book an In-Person Autism Assessment

  • £1300
  • Clinician time included in your fee:
  • 1.5 hour appointment with you
  • 30 mins pre-assessment form review
  • 1 hour writing diagnostic report
See Clinicians for this Assessment

In-person autism assessment at our Marylebone clinic or Edinburgh clinic. No GP referral is required.

To schedule your assessment, please select your preferred location (either ADHD Health Clinic in Marylebone or Edinburgh), choose a suitable date and time, then follow the instructions to complete your payment. You can choose to pay in full, or take advantage of Klarna’s flexible options, including ‘Buy Now, Pay Later’ and interest free instalment plans.

Dr Khurram Sadiq – Consultant Neurodevelopmental Psychiatrist, multi-award-winning author of Explaining AuDHD and one of the UK’s most recognised voices on Autism, ADHD and AuDHD including presenting 7x TEDx talks with more than 500,000 views.

He combines frontline NHS leadership, research training and global advocacy with day-to-day clinical practice, bringing a rare depth of perspective to each assessment.

If you’re seeking clarity, understanding or a formal autism diagnosis, an in-person assessment with Dr Khurram is designed specifically for adults who want to sit down face to face with one of the most recognised neurodiversity experts in the UK.

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All assessments are compliant with NICE guidelines. If you do not see suitable availability, please call 020 7362 6532 to get an appointment outside these hours.

All Marylebone Clinic Appointments with Multi-Award-Winning Psychiatrist, Author and International Speaker Dr Khurram Sadiq

Appointment Availability

Next week:

8

appointments

In 2 weeks:

8

appointments

In 3 weeks:

10

appointments

For more appointment times, please use the arrows on the calendar.

Select Your Preferred Clinic Location

Book an Appointment in Marylebone

For more appointment times, please use the arrows on the calendar.

Book an Appointment in Edinburgh

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Multi-award-winning psychiatrist, author and international speaker on Autism, ADHD and AuDHD

Delivered 7x TEDx talks with over 500,000 views

Dr Khurram Sadiq has delivered seven TEDx talks on autism, ADHD and AuDHD, and has been invited to speak at UNESCO (Paris) and the United Nations (Vienna). His work focuses on shifting the narrative from “what is wrong with you?” to “what is strong about you – and what support do you actually need?”
Watch more TEDx Talks by Dr Khurram Sadiq

The Superhumans That Exist Amongst Us - TEDx talk by Khurram Sadiq

Today, 1 in 56 people are diagnosed with ASD and the male ratio is 4:1 to females. In this talk Dr Khurram points out why this ratio is actually 1:1 and why women are in the same level of danger as men.

No.1 AuDHD Expert: What AuDHD Really Feels Like, This Habit Means You Have AuDHD!

Dr Khurram Sadiq is a world renowned, award-winning psychiatrist and author of Explaining AuDHD. He’s here to explain what AuDHD really feels like, how to spot the signs of AuDHD and how to thrive with AuDHD.

Internationally Recognised AuDHD Expert & Groundbreaking Author

Dr Khurram Sadiq – Author of Explaining AuDHD: The Expert-Led Guide to Autism and ADHD Co-Concurrence

Dr Khurram Sadiq’s landmark book, Explaining AuDHD, is one of the first major works to focus entirely on the combined experience of autism and ADHD. Blending cutting-edge neuroscience with real-life stories, it gives autistic, ADHD and AuDHD individuals – and the clinicians, educators and families who support them – a clear, practical framework for understanding co-occurrence, advocating with confidence and turning insight into change.

Dr Khurram Sadiq is now available for assessments through ADHD Health Clinic:

Dr Khurram Sadiq is a Consultant Neurodevelopmental Psychiatrist at ADHD Health Clinic
explaining AuDHD by Dr Khurram Sadiq

Using private healthcare insurance?

Before booking, please check your policy to confirm that this type of assessment is covered. ADHD Health Clinic works with Cigna, Bupa Global, Vitality and WPA. Please note that we do not work with Bupa UK.

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Why book an In-Person Autism Assessment

People choose this in-person assessment when they:

  • Have long-standing questions about social communication, sensory sensitivity, routines, special interests or masking
  • Wonder whether they might be autistic after self-research, online tests or hearing others’ stories
  • Have previously been diagnosed with anxiety, depression or personality difficulties, but feel those labels never fully explained their experience
  • Prefer a calm, face-to-face consultation with time to explore their history, rather than a rushed online checklist
  • Need a robust report to support workplace or educational adjustments and inform other professionals
And they choose Dr Khurram Sadiq because:
  • He is a nationally prominent neurodevelopmental psychiatrist, leading NHS ADHD and neurodiversity pathways as Medical Lead
  • He is a multi-award-winning clinician and communicator, recognised for both service transformation and public education
  • His work on autism, ADHD and AuDHD is widely referenced, including in his book Explaining AuDHD and his 7x TEDx talks
  • He brings a strength-based, neurodiversity-affirming approach, focusing on potential as well as difficulty
For many adults, sitting with someone who truly understands autism and related conditions – and who can articulate your story back to you in clear language – is a turning point.

At a Glance

  • In-person Adult Autism Assessment for adults aged 18+
  • Single 90-minute consultation at our London clinic
  • Delivered personally by Dr Khurram Sadiq, Consultant Neurodevelopmental Psychiatrist and author of Explaining AuDHD
  • Structured exploration of developmental history, social communication, sensory profile, routines and masking
  • Screening for co-existing difficulties, such as ADHD traits, anxiety, mood or trauma-related issues
  • Consideration of strengths, coping strategies and burnout
  • Comprehensive written report with clear conclusions and practical recommendations
  • With your consent, we can share our findings with your GP or other professionals
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ADHD Health Clinic Clinicians

Consultant Neurodevelopmental Psychiatrist offering In-Person Autism Assessments

Dr Rajasekaran Sankar is a Consultant Psychiatrist that also works in the NHS

Dr Rajasekaran Sankar

Experience:

Consultant Psychiatrist with 21 years of NHS experience in general adult psychiatry and 18 months experience in Private Practice in ADHD and Autism Assessments.

Specialities:

Adult ADHD, Adult Autism assessments, CAMHS ADHD and Autism assessments, Mood and Anxiety Disorders, OCD, Bipolar Disorder, Psychosis and Schizophrenia, Substance Misuse, Mental illness during pregnancy and post-partum.

Assessment Types:

Adult ADHD Assessments, Adult Autism Assessments, Adult Combined Assessments

Assessment Format:

In-person Consultation and Online Consultation

Availability:

All in-person Consultation on Saturday and Sunday. Online Consultations weekdays.

Languages Spoken

English, Tamil

Dr Rajasekaran Sankar Bio
Dr Khurram Sadiq is a Consultant Neurodevelopmental Psychiatrist at ADHD Health Clinic

Dr Khurram Sadiq

Experience:

Consultant Neurodevelopmental Psychiatrist, multi-award-winning author and international speaker including 7x TEDx talk presentations. Extensive experience leading NHS ADHD and neurodevelopmental services, driving digital innovation, and managing complex adult neurodiversity pathways.

Specialities:

Adult ADHD; Autism Spectrum Disorder; AuDHD (co-occurring Autism and ADHD); Neurodevelopmental Conditions; Complex Adult Mental Health

Assessment Types:

Adult Autism Assessments; Adult ADHD Assessments, Combined Adult Autism & ADHD Assessments

Assessment Format:

In-person Consultation

Availability:

All assessments on Monday, Wednesday & Thursday

Languages Spoken

English, Urdu, Hindi, Pashto, Punjabi, Saraiki

Dr Khurram Sadiq Bio

Your Assessment Process Explained

1
Book and Pay

Select a convenient appointment date and time for the assessment

Select a convenient appointment date and time with Dr Khurram Sadiq at our London clinic. Confirm your booking by paying in full or using available flexible payment options, including Klarna.

2
Registration

After booking, you’ll receive a confirmation email with your appointment video link and instructions to complete your online registration and photo ID forms.

After booking, you’ll receive a confirmation email with your appointment details and instructions to complete your online registration and photo ID forms.

3
Pre-Assessment Forms

You’ll receive links to pre-assessment forms

You’ll receive links to four pre-assessment forms – three for yourself, and one by an informant. All forms to be completed at least 24 hours before your appointment.

4
Attend Appointment

Your in-person assessment lasts 3 hours at our London Clinic – 98 Crawford Street, Marylebone, London W1H 2HL. Please arrive 5-10 minutes before the start of your appointment.

5
Receive Your Diagnosis

Your clinician will discuss their findings and provide a personalised treatment plan. You’ll also receive a detailed diagnostic report, usually within 10 days of your appointment.

Dr Khurram Sadiq will discuss his findings and provide a personalised treatment plan. You’ll also receive a detailed diagnostic report, usually within 10 days of your appointment.

6
Treatment (Optional)

Treatment options, including medication and non-pharmacological approaches, are available. These will be discussed with your consultant to create a plan tailored to your individual needs.

Dr Khurram Sadiq may suggest medication or other non-pharmacological approaches. Once medication has optimised, with consent we’ll contact your GP to request a Shared Care agreement. Subject to agreement, this helps ensure long-term, affordable continuity of treatment.

For More Information

What is an adult autism assessment?
An adult autism assessment is a detailed evaluation that looks at whether you meet the diagnostic criteria for autism. It is designed to give you a clearer understanding of your neurodivergent profile, including how autism may affect your day-to-day life, relationships, work and study.
This assessment is suitable for adults who have long-standing questions about possible autism, including differences in social communication, sensory processing, routines, flexibility or emotional regulation. It can also be helpful for those who feel they have masked traits for many years or want greater clarity about their experiences.
Assessments are carried out by experienced neurodevelopmental clinicians with expertise in adult autism and wider mental health. The assessment process follows recognised diagnostic standards and considers your presentation carefully and thoroughly.
The in-person assessment is a structured process rather than a single appointment. It may include a developmental and life-history interview, self-report questionnaires, supporting information from someone who knows you well where available, and a review of any relevant background information.
The in-person adult autism assessment lasts 90 minutes. This forms part of a wider assessment process that also includes pre-assessment review and the preparation of your diagnostic report.
Yes. The assessment looks at your developmental history as well as your current experiences. This may include school, work, relationships, sensory experiences, routines, communication and everyday functioning.
No. Questionnaires may form part of the process, but they are only one element of a full clinical assessment. Your clinician will also carry out a detailed interview and consider your wider history, current presentation and any co-occurring difficulties before reaching any conclusions.
The assessment looks at areas such as social communication, flexibility of thinking, sensory processing, routines, relationships, daily living and emotional wellbeing. It may also consider whether other factors, such as ADHD, anxiety, depression or trauma, could be relevant.
After the assessment, you will receive a comprehensive report explaining whether you meet the criteria for autism. The report is designed to be clear and practical, helping you understand how your profile may affect different areas of life.
Yes. The report can help support conversations with universities and disability services. It may be useful when requesting support such as Disabled Students’ Allowance, teaching adjustments, exam support, mentoring or other practical provisions.
Yes. The report can support conversations with employers, HR teams, occupational health and other services about reasonable adjustments. It may help explain how autism affects communication, sensory demands, working patterns and other aspects of working life.
Yes. The report includes practical recommendations tailored to your needs. These may relate to work, university, daily life and wider support, so you have clearer guidance on possible next steps.
The assessment carefully considers whether other factors may also be relevant, such as ADHD, anxiety, depression or burnout. Where appropriate, further assessment may be recommended to help build a fuller picture.
Yes. Follow-up appointments can help you understand the outcome of the assessment, think through next steps, and consider how you may want to use the diagnosis in different areas of life.
Yes. An in-person appointment can be helpful for adults who prefer face-to-face discussion or feel more comfortable being assessed in person.
Yes.
Yes. ADHD Health Clinic is regulated by the Care Quality Commission (CQC). This means the clinic is required to meet established standards for safety, quality of care and clinical governance in England.
private adhd assessments in london

Please Note

ADHD Health Clinic is not a crisis service. If you are experiencing a medical emergency, call 999 immediately. For urgent medical help that is not life-threatening, contact NHS 111.

For non-urgent enquiries during working hours, you can reach our admin team at admin@adhdhealthclinic.co.uk.

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