The four main NHS-contracted providers
As of mid-2026, four independent providers hold the dominant share of adult ADHD assessments delivered under NHS Right to Choose in England. All four bill the NHS directly under the NHS Standard Contract; you, the patient, pay nothing. They are named on the NHS e-Referral Service (e-RS) and your GP submits the referral electronically once you name your choice. Other smaller providers exist and come and go — these four are the ones with sustained national coverage at the time of writing.
Below: what each provider does well, the typical assessment format, what to know about shared-care liaison, and what we'd suggest verifying before naming them in your letter. We are not affiliated with any provider. Provider details change weekly — always verify on the provider's own website on the day you write your letter.
Psychiatry-UK (PUK)
Website: psychiatry-uk.com/right-to-choose
Psychiatry-UK is one of the largest and longest-established NHS-contracted Right to Choose ADHD providers. They have national e-RS coverage and assess adults via remote video appointment with a consultant psychiatrist. Diagnostic interview typically uses the DIVA-5 structured tool, supplemented by collateral history from a family member or partner where possible. Titration runs over 8–12 weeks with regular medication reviews. After titration, PUK writes formally to your NHS GP requesting a shared care agreement and continues to manage prescribing in the interim if your GP declines.
- Assessment format: remote video with a consultant psychiatrist.
- Typical wait: historically longer (6–12 months from referral), but variable — check current status before naming.
- Shared care: formal liaison letter to NHS GP after titration. Continues to prescribe privately if the GP refuses.
- Best fit for: patients who want an established large provider with a long track record and don't mind a longer initial wait.
ADHD 360
Website: adhd-360.com/right-to-choose
ADHD 360 specialises exclusively in ADHD (not autism or other conditions), which gives them deep operational focus. Assessment is by video with an experienced ADHD clinician, often a non-medical prescriber or specialist nurse under psychiatrist supervision. Titration is structured and protocol-driven. ADHD 360 has historically moved faster than PUK on initial assessment booking, though this varies. They produce comprehensive shared care packs for NHS GPs that are widely accepted.
- Assessment format: remote video with an ADHD-specialist clinician.
- Typical wait: historically faster than the larger providers.
- Shared care: well-developed pack; many GPs accept it readily.
- Best fit for: patients who want a fast, ADHD-only specialist provider and value a structured titration pathway.
ProblemShared
Website: problemshared.net
ProblemShared is a digital-first provider with NHS Right to Choose contracts for both ADHD and autism diagnostic assessments. Assessment is delivered via a structured digital intake followed by a clinician-led video consultation. ProblemShared has invested heavily in the post-diagnosis pathway: regular medication reviews, digital symptom tracking and a dedicated shared-care liaison team. Reports we've seen from patients suggest the digital intake is more demanding upfront than other providers but the post-assessment experience is more structured.
- Assessment format: structured digital intake plus video consultation.
- Typical wait: moderate; check current intake status.
- Shared care: dedicated liaison team; strong post-diagnosis tracking.
- Best fit for: patients who like digital workflows and want strong ongoing structure after diagnosis. Also notable for covering autism RtC.
Clinical Partners
Website: clinical-partners.co.uk
Clinical Partners is a broader independent mental-health provider that holds NHS contracts for adult ADHD assessment alongside other neurodevelopmental and mental health services. They offer both remote video and (in some areas) in-person appointments — the only provider on this list with any meaningful in-person option. That said, NHS RtC availability with Clinical Partners varies more than the other three; verify current acceptance before naming. Shared-care liaison is offered but consult their site for the current process.
- Assessment format: video or, in some areas, in-person.
- Typical wait: variable — verify on their site before naming.
- Shared care: available; details vary.
- Best fit for: patients who want an in-person option where available, or are looking at multiple conditions in parallel.
How to choose between them
For most patients, the deciding factors are wait time and shared-care strength. Patients in a hurry typically name ADHD 360 or ProblemShared first. Patients who value an established large provider with a long track record name Psychiatry-UK. Patients who want an in-person option look at Clinical Partners.
We'd also suggest considering geography in a different way: not where you live (the assessment is remote anyway) but which ICB you're in, because some ICBs have produced local guidance discouraging GPs from accepting shared care from specific providers. If your ICB has issued such guidance about, say, ADHD 360 specifically, you may want to name a provider not flagged in that guidance — even though the guidance itself may be legally questionable. Pragmatically, it's easier than a fight.
Autism Right to Choose is different
If you're looking at autism rather than ADHD, the provider list is smaller. Psychiatry-UK, ProblemShared and (in some configurations) Clinical Partners hold active NHS contracts for adult autism diagnostic assessment under Right to Choose. ADHD 360 does not — they specialise in ADHD only. The autism waiting list is generally longer than ADHD, and the assessment is more involved (typically including the ADOS-2 instrument and collateral developmental history). Verify each provider's current autism RtC status separately — autism intake is managed independently of ADHD even at providers that do both.
Verify on their website before naming them
Three checks to do on the provider's own site, the day you write your letter:
- Are they currently accepting new NHS Right to Choose referrals for adult ADHD (usually labelled "NHS funded", "free via your GP" or "Right to Choose")?
- What is the current stated wait from referral to first appointment?
- Do they offer post-diagnosis shared-care liaison with NHS GPs, and is there a documented process for it?
If any answer is unclear, email or call the provider before naming them in your letter. A wrong name means your GP submits a referral via e-RS, the provider rejects it, and you start again. A 10-minute check now saves weeks later.
Frequently asked questions
›Which Right to Choose ADHD provider has the shortest wait?
Wait times shift constantly because each provider sets its own intake cap and recruits clinicians independently. As of mid-2026, ADHD 360 and ProblemShared have generally moved fastest from referral to first appointment (often 2–4 months), while Psychiatry-UK and Clinical Partners — both larger and more in-demand — have run longer. The honest answer is: check each provider's website on the day you're writing your letter, because a provider that was 6 weeks last month can be paused this month. We don't quote a 'live' number here because any number you read in a guide is already out of date by the time you act on it.
›Do all four providers offer shared-care liaison with my NHS GP?
All four state that they will write to your NHS GP after diagnosis and titration to request a shared care arrangement, and will provide the supporting letter, drug monograph and monitoring schedule your GP will need. Whether your GP agrees to take on shared care is a separate question — see our guide on shared care agreements for ADHD in the UK. Providers cannot compel a GP to accept shared care. They can only make the request properly and document the refusal if it comes.
›Can I switch Right to Choose ADHD provider mid-titration?
Yes, but it is administratively painful. You would need to discharge from your current provider, ask your GP to write a fresh Right to Choose referral via the NHS e-Referral Service (e-RS) to the new provider, and then re-enter the new provider's intake queue. Records typically transfer on request, but there is usually a several-week gap during which titration is paused. We'd suggest switching only if the original provider has become unresponsive or has stopped offering shared-care support that you specifically need.
›What if my chosen provider stops accepting new Right to Choose referrals?
It happens — multiple providers have temporarily paused new RtC referrals during 2023–2025 due to demand. If your provider closes its books between you naming them in the letter and your GP submitting the e-RS referral, the referral will bounce. Your GP can then resubmit to a different provider you name. This is one reason we suggest having a 2nd-choice provider in mind before sending the letter.
›Is the assessment quality the same across all four providers?
All four use DIVA-5 or a comparable structured diagnostic interview, screening for comorbidities, and titration following NICE NG87. There is no published independent comparison of diagnostic accuracy between them, and complaints data from the General Medical Council does not single out any one provider. The bigger predictor of a good outcome is whether your assigned clinician within the provider has adult ADHD experience — which is something only the post-assessment relationship will reveal.
›What should I verify on the provider's website before naming them?
Three things: (1) that they are currently open to new NHS Right to Choose referrals (often shown as 'NHS funded' or 'free via your GP'); (2) that they hold an active NHS Standard Contract with NHS England for adult ADHD assessment; (3) that they offer post-diagnosis shared-care liaison with NHS GPs. If any of these is unclear, email them before naming them in your letter — getting the name wrong means your GP submits the referral, the provider refuses it, and you start again.