At Harley Street Mental Health, we specialise in private ADHD assessments for adults and children, conducted by GMC-registered doctors following NICE guidelines. Our experienced team provides thorough, evidence-based evaluations to ensure accurate diagnosis and personalised treatment plans. As a top-rated ADHD clinic on Google, we are trusted by patients across the UK for our clinical excellence, compassion, and commitment to best practice.
What is Adult ADHD?
ADHD is a neurological condition that affects around 5% of the population. It can affect anyone from all different walks of life.
It is important to remember that ADHD is not caused by bad parenting, diet, or social circumstances. It is something that individuals are born with, and this means that symptoms are usually noticed before the age of 13.
Due to difficulties in accessing ADHD assessments, and the unfortunate and untrue stigma’s surrounding ADHD often the diagnosis is delayed until adulthood.
Harley Street Mental Health
At Harley Street Mental Health, we specialize in providing expert-led ADHD and Autism assessments, ensuring accurate diagnoses and tailored support for individuals of all ages. Our compassionate and professional approach helps you navigate your mental health journey with confidence.
What are the Symptoms of ADHD?
Inattention
Making careless mistakes / failing to give close attention to details
Difficulties sustaining attention
Difficulties listening and with “zoning out”
Difficulties following through or finishing tasks
Losing or misplacing things
Forgetfulness
Hyperfocus
Hyperfocus refers to a state of extreme and uninterrupted concentration on a particular task or activity.
Hyperfocus typically occurs when engaging in tasks that are particularly stimulating or interesting to the individual.
During hyperfocus, a person may completely lose track of everything happening around them, including external stimuli like sounds, conversations, or other events in their environment.
Hyperactivity / Impulsivity
Fidgeting (playing with pens, bouncing leg, biting nails, fidgeting with hands/feet)
Physical restlessness
Mental restlessness (racing thoughts, particularly when trying to relax)
Difficulties relaxing
Difficulties with patience and waiting
Difficulties in social situations (being loud, interrupting, talking excessively)
Difficulties Regulating Mood
Mood Swings: Rapid changes in emotional state.
Irritability: Easily frustrated or annoyed by situations.
Quick Temper: Tendency to become angry quickly.
Impatience: Struggling with waiting or delays.
Low Self-Esteem: Negative self-image or lack of confidence.
Inability to Deal with Stress: Difficulty managing pressure or challenging situations.
How do we diagnose
Adult ADHD?
At Harley Street Mental Health we diagnose ADHD through the use of clinical interviews and the DIVA-5. This is a structured Diagnostic Interview for ADHD in adults that is internationally recognised. The interview scores symptoms for attention deficit, hyperactivity and impulsivity. These scores are mapped against the diagnostic criteria from the DSM-V. A diagnosis is made when the score is above the internationally agreed threshold. Studies have shown that this interview has a sensitivity of 90%, and a specificity of 72.9%.
At the end of the interview, if a diagnosis is made we then discuss the various treatment options, and if appropriate issue a prescription for medication.
How do we treat ADHD?
Unfortunately there is no cure for ADHD, but it can be managed through advice and support, alongside medications.
There are a number of different medications available to treat ADHD and these will be discussed with you at the appointment.
Each individual can respond differently to medication. What may work ell for one person may not for another which is why we have titration appointments post diagnosis.
The first line medications for ADHD are known as stimulants. They boost and balance levels of neurotransmitters with the aim of improving symptoms of inattention and hyperactivity. They can be prescribed as long acting medications, or shorter acting medications. If these are not tolerated we can discuss alternative non-stimulants however these are not generally considered first line treatments.
The path to wellness
We believe in making the process as smooth as possible, with full transparency and easy navigation.
Pre-Appointment
During the Appointment
Post Appointment
Completion of Treatment
Frequently Asked Questions
(FAQs)
If you can’t find what you’re looking for, our team is here to help. Contact us for personalized guidance.
Harley Street Mental Health is a leading private mental health clinic based at 10 Harley Street, London. We provide expert psychiatric assessments, ADHD and autism assessments, therapy, medico-legal reports, and tailored treatments through our team of GMC-registered doctors including psychiatrists, specialty doctors, GPs, as well as nurses and psychologists. Our holistic approach ensures your mental health, physical health, and overall wellbeing are fully considered.
We offer a full range of private mental health services including psychiatric assessments, ADHD and autism diagnosis, anxiety and depression treatment, PTSD and trauma assessments, OCD and phobia assessments, medico-legal psychiatric reports, capacity and immigration assessments, and private therapy sessions.
Our main clinic is located at 10 Harley Street, London, W1G 9PF. We also offer virtual appointments to patients across the UK.
We offer fast access to appointments, often within a few days. You don’t need to wait months to get the expert support you need , we are committed to providing prompt, confidential care.
Your assessment and treatment will be carried out by our team of GMC-registered doctors, including psychiatrists, specialty doctors, GPs, as well as nurses and psychologists. This multi-disciplinary team approach ensures that your mental health, physical health, and general wellbeing are all taken into account.
During your psychiatric assessment, we will explore your symptoms, mental health history, medical history, lifestyle, and social factors. Our team will conduct a structured diagnostic evaluation and mental state examination, leading to a clear diagnosis and a personalised, holistic treatment plan.
Both virtual and in-person assessments are equally thorough. Some patients prefer the convenience of remote video consultations, while others feel more comfortable attending face-to-face at our prestigious Harley Street clinic. The level of care and assessment quality is exactly the same.
Yes. Our assessments and reports follow NICE guidelines and are widely accepted by NHS GPs and services. Your GP should be able to record any diagnosis on your NHS medical records. However, if we recommend medication, some GP practices may have their own policies regarding prescribing medication initiated privately , it is advisable to check with your GP beforehand.
Before your appointment, you will receive electronic questionnaires to complete about your symptoms and background. These allow you to share important information in advance and can be particularly useful if you find it difficult to verbalise everything during your appointment. Bringing along a list of medications, previous psychiatric or medical reports, and jotting down your key concerns can also be very helpful.
ADD (Attention Deficit Disorder) is an older term previously used to describe individuals who experience attention difficulties without hyperactivity. Today, the correct diagnosis is ADHD (Attention Deficit Hyperactivity Disorder), which has three recognised presentations: inattentive type, hyperactive-impulsive type, and combined type. We assess for all types during our comprehensive evaluations.
What makes you different to other clinics?
We hand pick all of our clinicians to ensure that they have the same values as us.
This ensures that our service users are actually listened to and are the heart of our treatment plans.
We recognise that diagnosis and treatment plans cannot simply be “one size fits all” and our personalised down to earth approach aims to keep the process as easy as possible.
We will try to keep your costs low where possible. Once you are on the right dose and feeling settled (you may need one or two medication titration appointments to achieve this), you can order your medication through the repeat medication process.
Following two months of being on the same dose, with no further changes, we will consider returning your care to your GP.
Can I see you on the NHS?
We are a private clinic, and therefore you cannot be seen by us as part of the NHS. <br><br>We can write to your GP once you are stable on your treatment to ask them to take over prescribing as part of a Shared Care Agreement, however they are under no obligation to accept this agreement.
Do I need a referral?
Our clinicians can see you directly without a referral, however a condition of all appointments is that you agree for Harley Street Mental Health to copy your GP into all assessment and treatment plans.
We are happy to accept referrals from other clinicians, however this is not necessary to use our service.
What happens during an appointment?
If you have booked a virtual appointment, you will be sent an invitation through our clinic software known as “Semble”. On the day of your appointment, you click the link and will enter into a video interview with one of our clinicians.
If you have booked an in-person appointment you will be greeted by your clinician in the waiting room.
Do you accept insurance?
Currently we do not accept insurance, and all of our assessments and treatment plans are self funded, and therefore we encourage you to look at the “fees” page prior to booking.
Do you prescribe medication?
Our team are able to prescribe medication as part of your treatment plan if this is required. Our prescriptions are private, and therefore you will be liable for the cost of the prescription and the medication.
Hod do I know if the treatment will be beneficial?
Unfortunately, there are no guarantees with psychiatry. All of our clinicians are extremely experienced and prescribe based on the most up to date evidence base. You will be involved in your treatment plans at all stages.
I have a complaint?
We are sorry to hear that you have a complaint. Please see the complaints section of our website or email complaints@hsmh.co.uk where we will endeavour to resolve your complaint in a timely manner.
What are the fees associated with ADHD Assessments?
Please see the fees section on the website. It is important that you are aware of all costs prior to starting treatment. An ADHD assessment costs £715 and lasts approximately 1.5 hours and will include a detailed written report and treatment plan (includes a prescription which will posted to your chosen pharmacy, if medication is considered suitable for you).
The cost of medication will be in addition to this and paid directly to your chosen pharmacy.
We then require service users to attend titration appointments at £150 each where your medication is adjusted until most effective. Once you move on to repeat prescriptions, they will cost £48 for a monthly prescription.
Once you are stable on your medication (around two months of being on the same dose, with no further changes and you feel much better) you can ask us to write to your GP and enter into a shared care agreement which costs £125. Your GP is under no obligation to accept a shared care agreement, and therefore we encourage all service users to discuss this with their GP prior to using our service.
Are you registered with the CQC?
Yes, we have been approved for registration with the Care Quality Commission
I have another question
Please email us on contact@hsmh.co.uk and we will get back to you shortly
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Our Process
Prior to booking an appointment we encourage patients to :
1. Discuss ADHD with their GP. We encourage you to start the discussion early, in particular asking them if they are able to enter into shared care agreements once you are stable. If they are unable to do this, it will mean that even once stable, all of your prescriptions will have to be provided through Harley Street Mental Health at a cost.
2. Fill in the ASRS self-assessment questionnaire which can be accessed here. Research tells us that if you have 4 or more symptoms in the grey box on Part A then further investigation for ADHD is warranted
3. Ensure you review the fee’s section of the website and are comfortable with the fees associated with assessment and treatment.
If you have any questions about our services prior to booking please email contact@hsmh.co.uk and we will assist you on your journey with Harley Street Mental Health.
Use our online booking portal to book a virtual consultation using our state of the art video conferencing software, or email us to schedule an appointment in our prestigious clinic at 10 Harley Street.
Prior to your appointment you will receive an email providing information on what to expect on the day, along with a patient information questionnaires and a self-assessment forms to fill in. We require that these are submitted prior to attending your appointment. We will require a blood pressure and pulse reading if prescribing medication.
If you are visiting us at our clinic in person, one of our friendly clinicians will meet you in the waiting room.
If you are using our secure virtual service, you will be sent a link to join using our state of the art video conferencing software called Semble.
At both appointments you will be required to provide photo identification to confirm your identity.
At virtual appointments you will be required to let the clinician know your current location. This must take place within the United Kingdom.
After your appointment the following will occur:
1. You will receive your assessment outcome via email within 72 hours. Where appropriate this will contain your diagnosis and treatment plan.
2. Once agreed, your prescription will be sent to your chosen pharmacy in 72-96 hours. If you choose to use one of our nominated pharmacies, they are able to post medications directly to your door.
3. Your clinician will advise you on frequency of follow-up appointments to monitor treatment and progress.
When your treatment has been completed, you can request us to enter into a shared care agreement with your GP. If they agree, then they will be able to take over prescribing of medication subject to the conditions of the shared care agreement.
If they agree, then they will be able to take over prescribing of medication subject to the conditions of the shared care agreement.
In some instances a GP may refuse to enter into a shared care agreement, in which case all future prescriptions will have to be provided through Harley Street Mental Health. It is for this reason we ask that you have a conversation with your GP prior to using our service.
How do I book an appointment?
Booking is quick and easy. Simply visit our website, select your service, and choose a suitable time.
Do you offer in-person and virtual consultations?
Yes, we provide both in-person assessments at 10 Harley Street and secure virtual consultations.
How soon will I receive my assessment report?
You will receive your detailed assessment report within 3 to 5 days after your consultation.
Are your clinicians qualified and accredited?
Absolutely. Our team consists of GMC-registered doctors and accredited specialists following NICE guidelines.
Can I get a repeat prescription?
Yes, we offer a straightforward repeat prescription service for ongoing treatment management.
What our patients say about us
Read real experiences from our patients—trusted, professional care that makes a lasting impact on mental health.
Enrolling in Harley Street Academy was the best decision I’ve made for my personal and professional growth. The mental health courses are not only deeply informative but also emotionally enriching. I now feel confident supporting clients with real empathy and evidence-based tools.
Sarah M.
I’ve attended multiple training programs, but none come close to the level of care, depth, and professionalism I found here. The tutors are industry experts who genuinely care about your success.
James R.
As someone new to the mental health field, I felt incredibly supported. The course content is well-structured, and the team creates a safe space to ask questions and grow. I now feel equipped to begin my career with confidence.
Aisha K.
What I learned at Harley Street Academy translated directly into my day-to-day practice. Whether you’re a nurse, coach, or therapist, their approach is practical and highly applicable.
Michael T.
EXCELLENT Based on 239 reviews Posted on Nahyaan Poonawala2025-10-06Trustindex verifies that the original source of the review is Google. Warm, professional, and evidence-based care. I've made real progress after years of struggling.Posted on Aidan George2025-10-06Trustindex verifies that the original source of the review is Google. Just had my first appointment with Dr. Sullivan, and I couldn’t be more relieved. As an international student, I had a lot of worries going into the process, but she immediately put me at ease. Despite me being late, she was incredibly accommodating and helped move things forward quickly, something that would normally take much longer. Hussnen has also been fantastic, always quick to respond and helpful with every query. I’m really glad I chose Harley Street, it’s made all the difference.Posted on Luke Gracestone2025-10-05Trustindex verifies that the original source of the review is Google. I was seen by Dr Sijjad Ijaz who was absolutely brilliant. He went through all the questions with real sensitivity and interest - it was a very human experience. I can't compliment him enough on his excellent bedside manner and knowledge about neurodiversity. I was really impressed and was sent a full assessment shortly after the consultation which was really well put together and reflected what I also felt were the most important elements of how my condition affects me. 5 Stars to Dr Izaj and Harley Street Mental Health.Posted on Carina Brasil da Cunha2025-10-05Trustindex verifies that the original source of the review is Google. I had an ADHD assessment consultation with Dr Sijjad Ijaz and couldn’t have felt more at ease or better looked after. From the outset, he was warm, attentive, and thorough—he asked thoughtful questions, explained the process clearly, and checked I understood each step before moving on. I really valued how collaborative the consultation felt. Dr Ijaz’s manner strikes a great balance between professional and human. We even found a minute to chat about Formula 1—which made the session more relaxed without ever losing focus. The final report was clear and detailed, and I left with a confident plan for next steps, including follow-up and medication considerations. Overall, an excellent experience: timely, respectful, and genuinely helpful. I’d highly recommend Dr Ijaz and Harley Street Mental Health to anyone considering an ADHD assessment.Posted on anon jones2025-10-01Trustindex verifies that the original source of the review is Google. I cannot recommend Harley Street Mental Health enough. During a particularly challenging time with family troubles, the team was incredibly understanding and flexible. When I was unable to complete all the screening questionnaires on time, they promptly rescheduled appointments, allowing me the necessary space and support to get everything done without added stress. A special thank you to Dr. Sijjad Ijaz, who provided exceptional care during my diagnosis process for ADHD. His professionalism and deep knowledge of ADHD and medication were evident, yet he also maintained a warm, approachable manner that made me feel comfortable and understood. His ability to discuss complex topics in an informal, human way truly set him apart. Dr. Sijjad Ijaz’s dedication goes beyond his practice; I’ve heard he's a hero in helping children in A&E, which speaks volumes about his commitment to mental health and community service. I am grateful for his support and expertise, he made a difficult process much easier and more reassuring. If you're seeking compassionate, expert mental health care, Harley Street Mental Health and Dr. Sijjad Ijaz are the best choice.Posted on Tony Barnfather2025-09-28Trustindex verifies that the original source of the review is Google. Dr Sijjad Ija was the ultimate professional. Thorough and empathetic in what was a detailed and at times difficult lengthy review and assessment process.Posted on Maya Florence2025-09-26Trustindex verifies that the original source of the review is Google. Dr Sijjad was wonderful! I felt comfortable and safe during my assessment.Posted on bruce brenner2025-09-23Trustindex verifies that the original source of the review is Google. Dr Sijjad Ijaz conducted an ADHD assessment on me, which concluded with a positive diagnosis, and treatment plan (medication). The process was incredibly fast and efficient, yet highly professional and thorough. It only took 48 hrs from my initial contact with Harley Street Mental Health to my assessment with Dr Sijjad Ijaz, which I was amazed at having had to wait many months for my children to be assessed privately (not by Harley Street). I highly recommend Harley Street Mental Health, and Dr Sijjad Ijaz for ADHD assessment/diagnosis.Posted on Dorian Rees2025-09-23Trustindex verifies that the original source of the review is Google. Harley street mental health have been exceptionally quick with my adhd assessment and report. Dr Sijjad Ijaz was very easy to talk to and very thorough. He was very professional and the report that has been made is very detailed. I cannot thank Harley street mental health enough. Highly recommended!!Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more