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Private ADHD Assessment For Adults

You are not alone, and there is a clear path forward.

Private ADHD assessments for adults across the UK, conducted by specialist clinicians. Each assessment is DSM-5 and NICE guideline compliant and includes a full written report, personalised treatment plan, and supporting letters, delivered within 10 working days. No GP referral required.

0% Payment Plans

Same-Week Availability

Shared Care Available

No Referral Needed

NHS Waiting Times
Are Now Averaging 5+ Years for Adult ADHD Assessment

Over 2.5 million people in England are estimated to have ADHD, the majority of whom remain undiagnosed. NHS waiting lists for adult ADHD assessment currently average more than 5 years in many areas, leaving thousands without answers and without access to appropriate support.

Private ADHD assessment for adults with ADHD Certify provides a clinical-grade diagnosis from a specialist clinician, typically within the same week of booking. Your report is accepted by the NHS, by employers, and by educational institutions.

Wait 2+ Years

Average NHS Wait for Adult ADHD Assessment

Same Week

ADHD Certify
assessment availability

What Happens
at Your Adult ADHD Assessment?

The process is straightforward. From booking to receiving your report, here is what to expect:

1

Book Your Assessment

Select a date and time that suits you. No GP referral required. Available online across the UK or in person at selected clinic locations.

2

Complete Pre-Assessment Forms

Two questionnaires are sent in advance; one is completed by you, and the other by a person who knows you well (family member, partner, or close friend). These help your clinician understand your background and symptom history before the session.

3

Your 90-Minute Assessment

A structured clinical interview conducted by a specialist clinician via video call or in person. The session covers symptom presentation, developmental history, and functional impact across key life areas. DSM-5 and NICE guideline compliant throughout.

4

Receive Your Report

Your comprehensive written report is delivered within 10 working days. It includes your diagnostic outcome, supporting clinical rationale, a personalised treatment plan, and letters suitable for employers, universities, or your GP.

Common Reasons
Adults Seek an ADHD Assessment

ADHD in adults is frequently unrecognised, particularly in individuals who have developed compensatory strategies over time or who were not diagnosed in childhood. An assessment may be appropriate if you consistently experience any of the following:

Read more about ADHD symptoms.

We Offer Transparent Pricing. No Hidden Costs

Understanding your options before you commit matters. Here is a direct comparison of the main routes to an adult ADHD assessment in the UK:

ADHD Certify NHS Other Private Clinics
Wait Time 2+ years 8+ weeks
Cost Free (with long wait) £800–£2,400
GP Referral Needed Yes Often yes
NHS-Accepted Report Yes Varies
Payment Plans N/A Rarely
Right to Choose (England) 3–12 months N/A

Our ADHD assessment for adults includes your full diagnostic session, comprehensive written report, personalised treatment plan, and supporting letters. No referral needed. Discounts may be available, check our pricing for current offers before booking.

Adult ADHD Diagnosis
Is Just the Beginning: Here Is What It Unlocks

A formal ADHD diagnosis from ADHD Certify is a clinically valid document that can be used across multiple areas of your life. Here is what becomes available to you:

Meet Our Clinical Team

All ADHD Certify assessments are conducted by qualified clinicians registered with the relevant regulatory body. Our team includes registered mental health nurses, advanced practitioners, and specialist psychologists, each with experience in NHS and private ADHD assessment.

What Our Clients Say

Our therapists are qualified, experienced, and genuinely invested in the people they work with. Every clinician on our platform is accredited with a UK professional body and verified before joining.

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Rachael Lukavec profile picture
Rachael Lukavec
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Annnisha is always professional, friendly and knowledgeable. I feel in safe hands getting my prescriptions from her. I feel listened to and supported.
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Billy Thomson profile picture
Billy Thomson
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
A really easy going and settling process but highly professional and clinical standard
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matthew lynch profile picture
matthew lynch
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Lisa was very patient with me and understanding. She let me go on but came in at the right moments as well and I never felt judged. Would absolutely recommend her to anyone.
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Alex Humphreys profile picture
Alex Humphreys
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Annisah has really helped me. Her holistic approach makes the treatment feel genuinely personal. She goes above and beyond to make the while experience feel much more human.
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Matthew White profile picture
Matthew White
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Annisah is extremely helpful and understanding. I would highly recommend her as she has helped me massively.
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A profile picture
A
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Janine was extremely understanding and made the appointment very comfortable, it was like chatting with a friend. She explained everything well and was very helpful.
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ksenia spiridonova profile picture
ksenia spiridonova
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Not competent to do diagnosis. Took 2 weeks with constant moving our outcome call, nurse been doing our assessment not a doctor, she had no clue and needed to call her colleagues to ask for opinion. Used DIVA5 assessment creteria on 5 year old non verbal child. Go with someone else, save your money.plus they managed delete my previous 1 star review
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Ready to Get Answers?

NHS waiting lists for adult ADHD assessment now exceed more than 2 years in most areas. A private assessment with ADHD Certify is available within the same week of booking,and comes with everything you need; a comprehensive clinical report, personalised treatment plan, and letters for employers, universities, or your GP.

No referral needed. No long wait. Assessed by a specialist clinician, not a generalist.

Frequently Asked Questions

Do I need a GP referral?

No. We operate as a self-referral service. You can book directly without speaking to your GP first. If you would like your GP to be informed of your diagnosis, your report can be shared with them following your assessment.

The clinical assessment session is 90 minutes for adults. You will also complete two pre-assessment questionnaires in advance, which take approximately 20–30 minutes each.

Your full written report is delivered by email within 10 working days of your assessment. It includes your diagnostic outcome, clinical rationale, treatment plan, and supporting letters.
Yes. If medication is recommended as part of your treatment plan, our clinicians can prescribe directly. Medication is dispensed via our partner pharmacy and delivered to your home.
ADD (Attention Deficit Disorder) is an older term that is no longer used in clinical diagnosis. The current diagnostic classification under DSM-5 and ICD-11 uses ADHD (Attention Deficit Hyperactivity Disorder), with three recognised presentations: Predominantly Inattentive, Predominantly Hyperactive-Impulsive, and Combined. Your report will specify which presentation is most consistent with your clinical picture.
Not all assessments result in an ADHD diagnosis. If your clinician concludes that ADHD is not the primary explanation for your difficulties, your report will include clinical observations and, where appropriate, recommendations for further assessment or alternative support pathways.

Yes. Both online and in-person ADHD assessment for adults follow the same DSM-5-compliant clinical protocol and produce the same comprehensive report. The online assessment is conducted via a secure video call with full ID verification.

If you require urgent assistance regarding your ADHD treatment outside of our opening hours, please follow the guidance below:


  • Non-Life-Threatening Situations: If your concern is urgent but not life-threatening, please contact your own GP for advice and support. If your GP Surgery is closed, you can also call the NHS non-emergency number, 111, for guidance on what to do next.
  • Life-Threatening Situations: If you or someone else is in immediate danger or experiencing a life-threatening emergency, please call 999 without delay.

Your safety and well-being are our top priorities, so please ensure you reach out to the appropriate services when in need.
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