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FOR ADULTS

In-Person Combined Autism + ADHD Assessment

  • £1800
  • Saving of £495 compared to booking separate in-person appointments for Autism and ADHD.
  • Clinician time included in your fee:
  • 3 hour appointment with you
  • 30 mins pre-assessment form review
  • 1 hour writing diagnostic report
See Clinicians for this Assessment

3-hour in-person combined assessment at our Marylebone or Edinburgh clinics. No GP Referrals 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.

Very few clinicians worldwide combine front-line service leadership, research training, international advocacy and daily clinical practice in AuDHD the way he does. This is the expertise you are sitting down with for your assessment.

For many adults, the real question is not “Is it autism or ADHD?” – it is “How do both show up together in my life?” This in-person Combined Autism + ADHD Assessment is designed specifically for that question. Rather than sending you through two separate pathways, you spend three hours face to face with the pioneering consultant whose entire career has focused on understanding the overlap.

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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 are with Multi-Award-Winning Psychiatrist, Author and International Speaker Dr Khurram Sadiq

Appointment Availability

Next week:

4

appointments

In 2 weeks:

4

appointments

In 3 weeks:

4

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

What Recovery Taught Me About Fear - TEDx talk by Khurram Sadiq

In this talk, Dr Khurram Sadiq explores AuDHD as more than a clinical overlap, arguing that it deserves to be understood on its own terms.

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.

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.

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 a Combined Autism + ADHD Assessment – and why with Dr Khurram Sadiq?

People choose this assessment when they:
  • Recognise themselves in both autistic and ADHD descriptions and suspect they may be AuDHD
  • Have had partial or conflicting assessments and still feel that nobody has quite “got the full picture”
  • Want to understand lifelong patterns of focus, social interaction, emotional intensity, masking and burnout in one joined-up conversation
  • Prefer a face-to-face, consultant-led assessment with time to go deep rather than a rushed, checklist-driven verdict
  • Need a report with enough authority and clarity to support reasonable adjustments at work or in education
And they choose Dr Khurram Sadiq because:
  • He is Consultant Neurodevelopmental Psychiatrist and ADHD Medical Lead in an NHS Foundation Trust, where he rebuilt ADHD services, introduced digital and AI-supported pathways, and cut waiting lists from 67+ months to under 10 months
  • He has delivered 7 TEDx talks on autism, ADHD and AuDHD and has been invited to speak at UNESCO (Paris) and the United Nations (Vienna)
  • His book Explaining AuDHD has become a key reference for clinicians, educators and families who want to understand co-occurring autism and ADHD in real human terms

At a Glance

  • In-person Combined Autism + ADHD Assessment for adults (18+)
  • Single 3-hour consultation at our London clinic
  • Delivered personally by Dr Khurram Sadiq, Consultant Neurodevelopmental Psychiatrist and author of Explaining AuDHD
  • Detailed exploration of autism traits, ADHD traits and their interaction as AuDHD
  • Structured diagnostic interview plus standardised questionnaires and developmental history
  • Consideration of strengths, masking, burnout and co-existing mental health difficulties
  • 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 Combined Autism + ADHD 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 eight pre-assessment forms – five for yourself, and three by informants. 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 a combined adult ADHD and autism assessment?

A combined adult ADHD and autism assessment is a detailed evaluation that looks at whether you meet the diagnostic criteria for ADHD, autism, or both. It is designed to give you a joined-up understanding of your neurodivergent profile, including how both conditions may affect your work, study, relationships and day-to-day life.

This assessment is suitable for adults who recognise traits of both ADHD and autism, or who feel it is unclear which diagnosis best explains their experiences. It can be especially helpful where there are overlapping difficulties with focus, organisation, sensory processing, social communication and emotional regulation.
Assessments are carried out by experienced neurodevelopmental clinicians with expertise in both ADHD and autism. 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 checklist or questionnaire. 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 combined adult ADHD and autism assessment includes a 3-hour appointment, together with 30 minutes of pre-assessment form review and 1 hour for writing the diagnostic report.
The in-person combined adult ADHD and autism assessment takes place at the London clinic: 98 Crawford Street, Marylebone, London W1H 2HL.
A combined assessment allows clinicians to look at ADHD and autism together in one pathway. This can provide a clearer and more complete picture of how your traits overlap and interact, rather than separating your experiences across two different assessments.
Yes. The assessment looks at your developmental history as well as your current experiences. This may include school, work, relationships, routines, sensory experiences, communication, emotional regulation 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 attention, impulsivity, organisation, social communication, flexibility of thinking, sensory processing, emotional regulation and daily functioning. It may also consider whether other factors, such as anxiety, depression, trauma or burnout, could be relevant.
For the in-person combined adult assessment, the detailed diagnostic report is usually provided within 10 days of the appointment.
After the assessment, you will receive a comprehensive report explaining whether you meet the criteria for ADHD, autism, both, or neither. 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 support conversations with employers, universities and other services about reasonable adjustments and practical support. It may help explain how ADHD and autism affect focus, organisation, communication, sensory demands and everyday performance.
Yes. The report includes practical recommendations tailored to your needs. These may relate to work, study, daily life and wider support, so you have clearer guidance on possible next steps.

Yes. If ADHD is diagnosed and medication is considered clinically appropriate, medication options can be discussed with a consultant psychiatrist. This includes considering benefits, possible side effects, monitoring and how treatment may fit alongside non-medication strategies and autism-informed support.

Shared care may be possible once your ADHD medication is stable, but you should always check with your GP before starting treatment if shared care is important to you. There is no national policy on shared care, and decisions are made locally by individual GP practices and healthcare boards. More than half of our shared care agreements are accepted by NHS GPs, as our medication pathway is managed by consultant psychiatrists. Final approval, however, always rests with your GP.
The assessment carefully considers whether other factors may also be relevant, such as anxiety, depression, trauma or burnout. Where appropriate, further assessment or support 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, discuss support options and, where relevant, review medication or wider treatment plans.
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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