Adults
13,212
adults waiting, across the NHS services we have figures for
At the current pace, a new referral to a local NHS service could wait about 32 years.
7th longest of 35 areas we have figures for. Middle of all areas: 12 years.
NHS area · England
ADHD assessment in NHS Surrey and Sussex ICB
Figures come from our own Freedom of Information requests. Last updated 18 August 2026.
At a glance
Children and young people
6,169
children waiting, across the NHS services we have figures for
We don't have enough recent figures to estimate how long a new referral would wait.
Right to Choose
Available, but restricted
The NHS here limits how Right to Choose can be used. Some providers still report short waits.
Shortest adult ADHD waits reported: ProblemShared 6 weeks, Clinical Partners 9 weeks, Psychiatry-UK 20 weeks.
See all Right to Choose providersHow NHS Surrey and Sussex ICB compares with other areas
Each dot is one NHS area. Further right means a longer wait at the current pace.
Middle of all areas: 12 yearsThis area: about 32 years
010 yrs20 yrs30 yrs40 yrs50 yrs60 yrs70+ yrs
Middle of all areas: 2.7 years
04 yrs8 yrs12 yrs16+ yrs
What does "at the current pace" mean?
We divide the number of people waiting by the number of assessments the service did in the last year. It shows how long someone joining the list today could wait if nothing changes. It is an estimate, not a promise: services can speed up, and some people are seen sooner because of urgency. The NHS standard for non-urgent care is 18 weeks.
Local NHS services
The NHS services that assess people here, with their latest figures.
Sussex Partnership NHS Foundation Trust
13,212waiting
412assessed in the year to Mar 2026
~32 yrsat current pace
What they told us
FOI 26.27-2316 (letter dated 5 Aug 2026, sent 18 Aug 2026): 13,212 adults waiting for an ADHD diagnosis; 412 adults given an ADHD assessment in 2025/26. EFFECTIVE WAIT: at the 2025/26 assessment rate (412 per year) the 13,212-strong waiting list represents an effective wait of roughly 32.1 years (13,212 / 412). The Trust declined to give a predicted wait, saying waits vary by clinical need and prioritisation. Pathway: referral, triage, wait list, assessment, referral for treatment and/or medication.
NHS Sussex ICB
Older figures (Jul 2024)
9,843waiting
1,044assessed in the year to Jul 2024
~9 yrsat current pace
What they told us
The BBC published research on ADHD wait times. They published data by NHS provider. In some cases the provider covers more than one NHS area. We've mapped the BBC data onto your ICB. It reported that in 2024 Sussex Partnership had 9843 people waiting with 1044 seen in 2023/24. Giving an effective wait time of 9.4 years
NHS Surrey Heartlands ICB
Older figures (Jul 2024)
6,643waiting
1,896assessed in the year to Jul 2024
~4 yrsat current pace
What they told us
The BBC published research on ADHD wait times. They published data by NHS provider. In some cases the provider covers more than one NHS area. We've mapped the BBC data onto your ICB. It reported that in 2024 Surrey and Borders Partnership had 6643 people waiting with 1896 seen in 2023/24. Giving an effective wait time of 3.5 years
NHS Frimley ICB
Older figures (Jul 2024)
1,238waiting
215assessed in the year to Jul 2024
~6 yrsat current pace
What they told us
The BBC published research on ADHD wait times. They published data by NHS provider. In some cases the provider covers more than one NHS area. We've mapped the BBC data onto your ICB. It reported that in 2024 Berkshire Healthcare had 1238 people waiting with 215 seen in 2023/24. Giving an effective wait time of 5.8 years
Sussex Partnership NHS Foundation Trust
6,169waiting
-not given
-at current pace
What they told us
FOI 26.27-2316 (letter dated 5 Aug 2026, sent 18 Aug 2026): 6,169 children waiting for an ADHD diagnosis. The number of children assessed in 2025/26 is not centrally reported (would need a manual review of records), so no effective wait can be derived. Stated wait: approximately 4 years - the Trust is currently assessing young people referred in 2022. Pathway: referral, triage, wait list, assessment, referral for treatment and/or medication.
Right to Choose: other NHS-funded providers
In England you can ask your GP to refer you to a different NHS-funded provider, often with a shorter wait. These are the waits providers have told us for NHS Surrey and Sussex ICB, shortest first. How Right to Choose works
| Provider | Wait for assessment | Wait for medication (titration) | Link |
|---|---|---|---|
| Atrom Mindcare Atrom Mindcare is a CQC-registered, psychiatrist-led mental health and neurodevelopmental assessment and treatment provider. We have no internal waiting list so most people book within days of sending back their forms, and every assessment is with a Consultant Psychiatrist. A few NHS areas limit referrals, so be sure to check yours on the ADHD UK website as well as at www.atrommindcare.com/nhs-right-to-choose-eligibility. National figure - not specific to this area | No wait listed | 5 weeks | Provider page |
| Berkeley Psychiatrists Approximately 2-3 weeks after referral accepted and processed. Some areas longer due to ICB caps - see ICB-specific data. We provide NHS Prescribing under Right to Choose even when the GP declines Shared Care National figure - not specific to this area | No wait listed | 1 week | Provider page |
| Care ADHD Patients typically booked within 1 day of completing forms, with plenty of clinical availability in that week around patient's diary.
We can receive referrals from all ICBs, but a small number have placed restrictions and longer waiting times for new assessments for non urgent cases. Please see ICB level information for more detail. National figure - not specific to this area | No wait listed | 18 weeks | Provider page |
| Harley Street Mental Health No wait (where no IAP in place) National figure - not specific to this area | No wait listed | 20 weeks | |
| Harrow Health No waiting list after completion of pre assessment forms. Appointments can be made for compliant patients immediately. National figure - not specific to this area | No wait listed | No wait | Provider page |
| Innovate ADHD We accept referrals from any GP in England and hold no routine waiting list, however there may be more local restrictions, which can be found on our website. Once your referral is accepted and uploaded, you will be sent a short triage form. In most cases you will then receive your pre-assessment forms straight away, and once these are returned you can book your appointment.
Where triage flags a complexity, or a prior diagnosis needs clinical review, your referral goes to a member of our clinical team first, this can add on a week or two, depending on volume.
A small number of NHS commissioners have placed local restrictions or longer waits on non-urgent referrals - the current list is on our website. National figure - not specific to this area | No wait listed | 12 weeks | Provider page |
| Medinet Minds (previously HealthHarmonie Minds) However some ICBs have set activity restrictions, see our website for more details - https://www.medinetminds.com/rtc-icb-restrictions/ National figure - not specific to this area | No wait listed | 4 weeks | Provider page |
| Mentalwell No wait. Adults (18+) only. Appointments are offered as soon as your pre-assessment questionnaires have been returned and reviewed. We accept NHS Right to Choose referrals from across most of England, although a small number of Integrated Care Boards (ICBs) have local commissioning restrictions in place. Please see the ICB-level information for more detail. National figure - not specific to this area | No wait listed | 4 weeks | Provider page |
| RTN Mental Health Currently accepting referrals with assessment capacity available. Following completion of the required forms, patients can move forward to assessment where local NHS commissioning arrangements allow. National figure - not specific to this area | No wait listed | No wait | Provider page |
| Well Life ADHD Clinic We work in partnership with the NHS and are accepting adult referrals across England. National figure - not specific to this area | No wait listed | No wait | Provider page |
| Xyla Services Once your GP referral and pre-assessment forms are complete, our team will arrange your online ADHD assessment with a specialist clinician. Check our website to see if we currently accept referrals from your area. National figure - not specific to this area | No wait listed | 4 weeks | Provider page |
| Dr J and Colleagues 3 to 4 weeks National figure - not specific to this area | 2 weeks | 4 weeks | Provider page |
| Insight Diagnostics 2 weeks after the referral is processed and accepted National figure - not specific to this area | 2 weeks | 10 weeks | Provider page |
| Psicon Assumes clients return their pre-assessment paperwork National figure - not specific to this area | 2 weeks | 16 weeks | Provider page |
| Skylight Psychiatry 2 weeks National figure - not specific to this area | 2 weeks | 14 weeks | Provider page |
| Healthcare Central London Our assessment wait times are currently up to 3 weeks following completion of all pre-assessment forms.
We can accept referrals from all Integrated Care Boards (ICBs) but, in some areas, there are restrictions in place that limit how many assessments we can book each year. Please see ICB level information for more detail. National figure - not specific to this area | 3 weeks | 11 weeks | Provider page |
| ProblemShared | 6 weeks | 32 weeks | Provider page |
| Modality LLP 4-8 weeks depending on ICB National figure - not specific to this area | 8 weeks | Not known | Provider page |
| Montrose Health Group Approx within eight weeks post all forms back and questionnaires - Local ICB rules may apply for your postcode which may impact on further waits or availability this financial year. National figure - not specific to this area | 8 weeks | 14 weeks | Provider page |
| Clinical Partners | 9 weeks | 39 weeks | Provider page |
| Psychiatry-UK | 20 weeks | 48 weeks | Provider page |
| The Retreat Clinic National figure - not specific to this area | 20 weeks | 4 weeks | |
| Adult ADHD Northwest Up to 26 weeks from completion of all forms. National figure - not specific to this area | 26 weeks | No wait | Provider page |
| ADHD 360 | 35 weeks | No wait | Provider page |
| The Owl Centre Limited 26 - 52 weeks. Waiting times vary by local NHS ICB, as each ICB manages its own referral pathway. National figure - not specific to this area | 52 weeks | 52 weeks | Provider page |
| The Aspen Clinic 78 weeks National figure - not specific to this area | 78 weeks | Not known | Provider page |
| Oakdale Group 78 to 104 weeks National figure - not specific to this area | 104 weeks | 78 weeks | Provider page |
| Sinclair Strong Waiting times vary depending on your local NHS Integrated Care Board (ICB). Each ICB commissions and funds a set number of assessments and appointments each financial year through an Indicative Activity Plan (IAP), which determines how many patients can be seen.
Some ICBs also specify waiting list management arrangements or target waiting times as part of their commissioned pathway. This can influence when patients are offered appointments and means waiting times may vary between areas.
Where demand exceeds the activity commissioned by the ICB, waiting times may be longer. We also prioritise patients with complex needs and other clinical factors in line with our contractual and clinical obligations, meaning some patients may be seen sooner than others. National figure - not specific to this area | Not known | 18 weeks | Provider page |
| Provider | Wait for assessment | Wait for medication (titration) | Link |
|---|---|---|---|
| Medinet Minds (previously HealthHarmonie Minds) Children aged 6+. 4 weeks. National figure - not specific to this area | 4 weeks | 6 weeks | Provider page |
| Psicon Assumes clients and school return their pre-assessment paperwork National figure - not specific to this area | 4 weeks | 16 weeks | Provider page |
| Care ADHD Appointments within 4-6 weeks from completing forms. National figure - not specific to this area | 6 weeks | 1 week | Provider page |
| Paloma Health Remote assessment only. Please check our website for waiting times and any restrictions in your area. National figure - not specific to this area | 6 weeks | 12 weeks | Provider page |
| Provide Wellbeing From 6 weeks.
Starting from the point that all required information has been received and accepted, to the first available appointment. National figure - not specific to this area | 6 weeks | 8 weeks | Provider page |
| Clinical Partners This wait time assumes that you have completed your child's pre-assessment questionnaires, and that there are no instructions issued from your local NHS Integrated Care Board (ICB) affecting when we can offer appointments. If the questionnaires are received later, or there are instructions from your ICB, the time you wait may increase. National figure - not specific to this area | 8 weeks | 40 weeks | Provider page |
| Montrose Health Group Ages 6+ Approx within eight weeks post all forms back and questionnaires - ICB rules may apply for your postcode National figure - not specific to this area | 8 weeks | 14 weeks | Provider page |
| Mind Professionals All services accessed via local frameworks or the Right to Choose (RTC) pathway currently have an expected waiting time of up to 18 weeks. National figure - not specific to this area | 18 weeks | Not known | Provider page |
| The Owl Centre Limited National figure - not specific to this area | 52 weeks | Not known | Provider page |
| Oakdale Group 52-78 weeks National figure - not specific to this area | 78 weeks | Not known | Provider page |
| The Aspen Clinic 78 weeks National figure - not specific to this area | 78 weeks | Not known | Provider page |
| Provider | Wait for assessment | Link |
|---|---|---|
| Atrom Mindcare Atrom Mindcare is a CQC-registered, psychiatrist-led mental health and neurodevelopmental assessment and treatment provider. We have no internal waiting list so most people book within days of sending back their forms, and every assessment is with a Consultant Psychiatrist. A few NHS areas limit referrals, so be sure to check yours on the ADHD UK website as well as at National figure - not specific to this area | No wait listed | Provider page |
| Medinet Minds (previously HealthHarmonie Minds) However some ICBs have set activity restrictions, see our website for more details - https://www.medinetminds.com/rtc-icb-restrictions/ National figure - not specific to this area | No wait listed | Provider page |
| Psychiatry-UK No wait. Assessments are available as soon as forms are completed, subject to local NHS funding and commissioning arrangements. Check our website for the latest availability in your area. National figure - not specific to this area | No wait listed | Provider page |
| RTN Mental Health Currently accepting referrals with assessment capacity available. Following completion of the required forms, patients can move forward to assessment where local NHS commissioning arrangements allow. National figure - not specific to this area | No wait listed | Provider page |
| Dr J and Colleagues National figure - not specific to this area | 2 weeks | Provider page |
| Insight Diagnostics 2 weeks after the referral is processed and accepted National figure - not specific to this area | 2 weeks | Provider page |
| Harley Street Mental Health 3 weeks (where no IAP in place) National figure - not specific to this area | 3 weeks | |
| Psicon Assumes clients return their pre-assessment paperwork National figure - not specific to this area | 4 weeks | Provider page |
| Provide Wellbeing From 6 weeks.
Starting from the point that all required information has been received and accepted, to the first available appointment. Available both virtually and face to face. National figure - not specific to this area | 6 weeks | Provider page |
| Clinical Partners This wait time assumes that you have completed your pre-assessment questionnaires, and that there are no instructions issued from your local NHS Integrated Care Board (ICB) affecting when we can offer appointments. If the questionnaires are received later, or there are instructions from your ICB, the time you wait may increase. National figure - not specific to this area | 7 weeks | Provider page |
| Montrose Health Group Ages 18+ Approx within eight weeks post all forms back and questionnaires - Local ICB rules may apply for your postcode with restrictions. National figure - not specific to this area | 8 weeks | Provider page |
| Skylight Psychiatry 8 weeks National figure - not specific to this area | 8 weeks | Provider page |
| ProblemShared Approximately 10-12 weeks assessment wait - from client ready National figure - not specific to this area | 12 weeks | Provider page |
| K T Healthcare 14-16 week wait time. This is a minimum wait time and may vary depending on your local Integrated Care Board (ICB). Timelines begin from receipt of completed questionnaires and all required information. National figure - not specific to this area | 14 weeks | Provider page |
| Mind Professionals All services accessed via local frameworks or the Right to Choose (RTC) pathway currently have an expected waiting time of up to 18 weeks. National figure - not specific to this area | 18 weeks | Provider page |
| The Retreat Clinic Our waiting time for standard NHS contract assessments is currently: 4.5 years (if the ICB confirms funding for this in 2026-27, we would be booking in people referred to us in early 2022). National figure - not specific to this area | 20 weeks | |
| The Owl Centre Limited 26 - 52 weeks National figure - not specific to this area | 52 weeks | Provider page |
| Oakdale Group 52-70 weeks (12-14 months). Can also offer combined autism and ADHD assessment. National figure - not specific to this area | 70 weeks | Provider page |
| The Aspen Clinic 78 weeks National figure - not specific to this area | 78 weeks | Provider page |
| Sinclair Strong Waiting times vary depending on your local NHS Integrated Care Board (ICB). Each ICB commissions and funds a set number of assessments and appointments each financial year through an Indicative Activity Plan (IAP), which determines how many patients can be seen.
Some ICBs also specify waiting list management arrangements or target waiting times as part of their commissioned pathway. This can influence when patients are offered appointments and means waiting times may vary between areas.
Where demand exceeds the activity commissioned by the ICB, waiting times may be longer. We also prioritise patients with complex needs and other clinical factors in line with our contractual and clinical obligations, meaning some patients may be seen sooner than others. National figure - not specific to this area | Not known | Provider page |
| Provider | Wait for assessment | Link |
|---|---|---|
| Psychiatry-UK Psychiatry UK is accepting referrals for Autism services for children and young people aged 8 and over. OUR REMOTELY DELIVERED SERVICE will include an initial clinical assessment, structured observation and multidisciplinary team review, followed by an outcome appointment, written report and optional post-diagnostic review. Assessments will be available as soon as pre-assessment forms are completed. During the first months of opening, we do not expect there to be an additional wait for assessment, subject to local NHS commissioning arrangements and available capacity. Families and healthcare professionals will be able to find referral information, service updates and local commissioning information on the Psychiatry UK website. A CYP ADHD assessment and treatment service is being developed for early 2027. CYP ADHD referrals are not yet open. National figure - not specific to this area | No wait listed | Provider page |
| RTN Mental Health Currently accepting referrals with assessment capacity available. Following completion of the required forms, patients can move forward to assessment where local NHS commissioning arrangements allow. National figure - not specific to this area | No wait listed | Provider page |
| Paloma Health Remote and hybrid assessment options available. Please check our website for waiting times and any restrictions in your area. National figure - not specific to this area | 2 weeks | Provider page |
| Medinet Minds (previously HealthHarmonie Minds) Accepting children aged 8+ nationally, delivered virtually. Herefordshire & Worcestershire ICB patients can be 6+, but part of the assessment must be face to face. 6 weeks. National figure - not specific to this area | 6 weeks | Provider page |
| Provide Wellbeing From 6 weeks.
Starting from the point that all required information has been received and accepted, to the first available appointment. National figure - not specific to this area | 6 weeks | Provider page |
| Montrose Health Group Ages 6 to 18th birthday. Approx within eight weeks post all forms back and questionnaires - ICB rules may apply for your postcode National figure - not specific to this area | 8 weeks | Provider page |
| Clinical Partners This wait time assumes that you have completed your child's pre-assessment questionnaires, and that there are no instructions issued from your local NHS Integrated Care Board (ICB) affecting when we can offer appointments. If the questionnaires are received later, or there are instructions from your ICB, the time you wait may increase. National figure - not specific to this area | 9 weeks | Provider page |
| Care ADHD Waiting times have been above our usual 4 week expectations, but significant clinical capacity is now in place for autism and dual assessments. National figure - not specific to this area | 12 weeks | Provider page |
| ProblemShared Approximately 10-12 weeks assessment wait - from client ready National figure - not specific to this area | 12 weeks | Provider page |
| Psicon Assumes clients and school return their pre-assessment paperwork National figure - not specific to this area | 12 weeks | Provider page |
| K T Healthcare 14-16 week wait time. This is a minimum wait time and may vary depending on your local Integrated Care Board (ICB). Timelines begin from receipt of completed questionnaires and all required information. National figure - not specific to this area | 14 weeks | Provider page |
| Mind Professionals All services accessed via local frameworks or the Right to Choose (RTC) pathway currently have an expected waiting time of up to 18 weeks. National figure - not specific to this area | 18 weeks | Provider page |
| The Owl Centre Limited 26 - 52 weeks National figure - not specific to this area | 52 weeks | Provider page |
| Oakdale Group 52-70 weeks (12-14 months). Can also offer combined autism and ADHD assessment. National figure - not specific to this area | 70 weeks | Provider page |
| The Aspen Clinic 78 weeks National figure - not specific to this area | 78 weeks | Provider page |
Providers update their own figures through our provider portal. Waits can change quickly, so check with the provider before asking your GP.
What is restricting access here
Rules the NHS here has put in place that limit who can be assessed, or how fast.
Adults and children
Not capping Right to Choose
This area told us it has not issued caps to any ADHD providers in Sussex, for adults or children. The Right to Choose providers it works with are listed on its website.
Know of a restriction we've missed? Tell us.
What you can do
1
Ask your GP for a Right to Choose referral
Pick a provider from the list above and ask your GP to refer you there. Our guide explains what to say.
Read the guide2
Get updates for this area
We'll email you when new figures or restrictions are published for NHS Surrey and Sussex ICB, and when complaint letters are ready.
3
Write to the ICB and your MP
Letter templates for this area are being prepared. Sign up and we'll tell you when they're ready.
Coming soon4
Tell us something we've missed
A new restriction, a letter from your trust, a figure that looks wrong. It helps us keep this page accurate.
Sources and how we work
In May 2026 we sent Freedom of Information requests to 2 organisations here. 2 have replied: 0 in full, 2 in part.
Older figures and records (8)
- May 2026 NHS Surrey and Sussex ICB (adults) · SourceNHS Surrey and Sussex ICB told us via FOI (FOI-SYSX-2605-057, dated 26/05/2026, Sussex response) that it does not hold adult ADHD waiting or assessment data - it directed us to Sussex Partnership NHS FT and RtC providers ADHD 360, Psicon and Psychiatry UK. Referrals are made via primary care to a provider chosen by the patient. NO Indicative Activity Plans have been issued to any of the Sussex ADHD providers.
- May 2026 NHS Surrey and Sussex ICB (children) · SourceNHS Surrey and Sussex ICB told us via FOI (FOI-SYSX-2605-057, dated 26/05/2026, Sussex response) that it does not hold child ADHD waiting or assessment data - it directed us to Sussex Partnership NHS FT and RtC providers ADHD 360 and Psicon. Referrals via primary care, schools or other professionals. NO Indicative Activity Plans have been issued to any Sussex ADHD provider.
- Mar 2023 NHS Frimley ICB (adults) · SourceThe NHS Frimley Integrated Care Board told us via FOI that they did not provide a figure for how many adult ADHD assessments were carried out. they did not provide a figure for how many adults were waiting for an ADHD assessment.
- Mar 2023 NHS Surrey Heartlands ICB (adults) · SourceThe NHS Surrey Heartlands Integrated Care Board told us via FOI that they did not provide a figure for how many adult ADHD assessments were carried out. they did not provide a figure for how many adults were waiting for an ADHD assessment.
- Mar 2023 NHS Sussex ICB (adults) · SourceThe NHS Sussex Integrated Care Board told us via FOI that they did not provide a figure for how many adult ADHD assessments were carried out. they did not provide a figure for how many adults were waiting for an ADHD assessment.
- Mar 2023 NHS Frimley ICB (children) · SourceThe NHS Frimley Integrated Care Board told us via FOI that they did not provide a figure for how many child ADHD assessments were carried out. they did not provide a figure for how many children were waiting for an ADHD assessment.
- Mar 2023 NHS Surrey Heartlands ICB (children) · SourceThe NHS Surrey Heartlands Integrated Care Board told us via FOI that they did not provide a figure for how many child ADHD assessments were carried out. they did not provide a figure for how many children were waiting for an ADHD assessment.
- Mar 2023 NHS Sussex ICB (children) · SourceThe NHS Sussex Integrated Care Board told us via FOI that they did not provide a figure for how many child ADHD assessments were carried out. they did not provide a figure for how many children were waiting for an ADHD assessment.
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NHS Surrey and Sussex ICB
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