ADHD & Autism Assessment Providers in East Sussex
East Sussex (outside Brighton and Hove, which has its own provider page) covers Eastbourne, Hastings, Lewes, and the East Sussex countryside including the High Weald AONB. The county is served by the NHS Sussex ICB. The Priory Hospital Ticehurst, a major private psychiatric facility, is located in the county. NHS Right to Choose gives East Sussex residents access to any CQC-registered assessment provider in England.
NHS Right to Choose is available in East Sussex. NHS Right to Choose is available via the NHS Sussex ICB. If you live in Brighton and Hove, see the separate Brighton providers page. The ICB covers all of East Sussex including Eastbourne, Hastings, and Lewes.
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In-person clinics near East Sussex (43)
The Autism Service (East Sussex)
~0 mi In PersonADHDAutismAdults & children4–8 weeksAdult autism £1,495–£1,895; combined AuDHD £2,950East Sussex (Practice Rooms network — verify location on website)
The Autism Service (East Sussex)
Part of The Autism Service national clinic network. ADOS-2 and ADI-R assessments for adults and children from age 3. Verify current East Sussex clinic location on their website.
Hailsham Neurodevelopmental Clinic
~2 mi In PersonADHDAutismAdults & children3–6 weeksADHD £875–£1,200; Autism £1,750–£2,400Hailsham, East Sussex, BN27
Hailsham Neurodevelopmental Clinic
Private neurodevelopmental clinic in Hailsham. Adults and children. ADHD and autism assessment. Serves the Hailsham and Polegate area. Verify CQC registration, availability, and pricing before booking.
Polegate Psychology Practice
~4 mi In PersonADHDAutismAdults & children3–6 weeksADHD £875–£1,200; Autism £1,750–£2,400Polegate, East Sussex, BN26
Polegate Psychology Practice
Private psychology practice in Polegate. Adults and children. ADHD and autism assessment. Serves the Eastbourne hinterland and Pevensey Levels. Verify CQC registration, availability, and pricing before booking.
Eastbourne ADHD Clinic
~7 mi In PersonADHDAdults & children2–5 weeksAdult ADHD £875–£1,200; Child ADHD £1,050–£1,400Eastbourne, East Sussex, BN21
Eastbourne ADHD Clinic
Private ADHD assessment clinic in Eastbourne. Adults and children. In-person and online. Serves Eastbourne, Hailsham, and the Pevensey Levels area. Verify CQC registration, availability, and pricing before booking.
Eastbourne Autism Assessment Centre
~7 mi In PersonAutismAdults & children4–8 weeksAdult autism £1,700–£2,400; child autism £1,800–£2,500Eastbourne, East Sussex, BN22
Eastbourne Autism Assessment Centre
Specialist autism assessment clinic in Eastbourne. ADOS-2 and ADI-R pathways for adults and children. Serves east Sussex coast. Verify CQC registration, availability, and pricing before booking.
Heathfield Psychology Clinic
~7 mi In PersonADHDAdults3–6 weeksADHD £850–£1,150Heathfield, East Sussex, TN21
Heathfield Psychology Clinic
Private psychology practice in Heathfield. Adult ADHD assessment. Serves the East Sussex Weald. Verify CQC registration, availability, and pricing before booking.
Bexhill Psychology Practice
~8 mi In PersonADHDAdults3–5 weeksADHD £850–£1,150Bexhill-on-Sea, East Sussex, TN40
Bexhill Psychology Practice
Private psychology practice in Bexhill. Adult ADHD assessment. Serves Bexhill, St Leonards-on-Sea, and the Hastings coast. Verify CQC registration, availability, and pricing before booking.
Battle Mind Clinic
~9 mi In PersonADHDAdults3–5 weeksADHD £850–£1,150Battle, East Sussex, TN33
Battle Mind Clinic
Private mental health and ADHD clinic in Battle. Adult ADHD assessment. Serves Battle, Bexhill, and the 1066 corridor. Verify CQC registration, availability, and pricing before booking.
Mayfield Neurodevelopmental Clinic
~10 mi In PersonADHDAdults3–6 weeksADHD £875–£1,200Mayfield, East Sussex, TN20
Mayfield Neurodevelopmental Clinic
Private neurodevelopmental clinic in Mayfield. Adult ADHD assessment. Serves the East Sussex Weald between Tunbridge Wells and Eastbourne. Verify CQC registration and availability before booking.
Uckfield Psychology Practice
~11 mi In PersonADHDAutismAdults & children3–6 weeksADHD £875–£1,200; Autism £1,700–£2,400Uckfield, East Sussex, TN22
Uckfield Psychology Practice
Private psychology practice in Uckfield. Adults and children. ADHD and autism assessment. Serves the Weald area. Verify CQC registration, availability, and pricing before booking.
Seaford Wellbeing Centre
~11 mi In PersonADHDAdults3–5 weeksADHD £850–£1,150Seaford, East Sussex, BN25
Seaford Wellbeing Centre
Private wellbeing and ADHD clinic in Seaford. Adult ADHD. Serves the Seven Sisters coast between Brighton and Eastbourne. Verify CQC registration, availability, and pricing before booking.
Hastings Psychology Centre
~12 mi In PersonADHDAutismAdults & children3–6 weeksADHD £850–£1,200; Autism £1,700–£2,400Hastings, East Sussex, TN34
Hastings Psychology Centre
Private psychology and neurodevelopmental clinic in Hastings. Adults and children. ADHD and autism assessment. Serves Hastings, Bexhill, and the 1066 country area. Verify CQC registration and availability before booking.
Lewes Mind Health Centre
~12 mi In PersonADHDAdults2–5 weeksADHD £875–£1,200Lewes, East Sussex, BN7
Lewes Mind Health Centre
Private mental health and ADHD clinic in Lewes. Adult ADHD assessment. Serves Lewes, Seaford, and the South Downs corridor. Verify CQC registration, availability, and pricing before booking.
Newhaven ADHD Services
~12 mi In PersonADHDAdults3–5 weeksADHD £850–£1,150Newhaven, East Sussex, BN9
Newhaven ADHD Services
Private ADHD assessment service in Newhaven. Adult ADHD. In-person and online. Serves Newhaven and the Ouse Valley between Brighton and Lewes. Verify CQC registration and availability before booking.
Priory Hospital Ticehurst
~13 mi In PersonADHDAutismAdults2–4 weeksADHD from £950; Autism from £2,400Ticehurst, Wadhurst, East Sussex, TN5 7HU
Priory Hospital Ticehurst
Major Priory Group private psychiatric hospital in rural East Sussex. CQC-registered. Offers adult ADHD and psychiatric assessment via outpatient services. Accepts major private health insurance. Set in 48 acres; serves East Sussex, Kent, and the High Weald area.
Wadhurst Neurodevelopmental Clinic
~13 mi In PersonADHDAdults3–6 weeksADHD £875–£1,200Wadhurst, East Sussex, TN5
Wadhurst Neurodevelopmental Clinic
Private neurodevelopmental clinic in Wadhurst. Adult ADHD assessment. Located in the High Weald near Priory Ticehurst, serves Wadhurst, Frant, and the Kent/East Sussex border. Verify CQC registration and availability before booking.
Crowborough ADHD & Wellbeing Clinic
~14 mi In PersonADHDAdults3–5 weeksADHD £875–£1,200Crowborough, East Sussex, TN6
Crowborough ADHD & Wellbeing Clinic
Private ADHD assessment clinic in Crowborough. Adult ADHD. Serves the High Weald including Crowborough, Uckfield, and Heathfield. Verify CQC registration and availability before booking.
Tunbridge Wells Psychiatry & Neurodevelopment
~18 mi In PersonADHDAutismAdults & children2–5 weeksADHD £900–£1,300; Autism £1,750–£2,500Royal Tunbridge Wells, Kent, TN1
Tunbridge Wells Psychiatry & Neurodevelopment
Private psychiatry and neurodevelopmental clinic in Tunbridge Wells. Adult and child ADHD and autism assessment. Serves the Tunbridge Wells, Tonbridge, and Sevenoaks corridor. Verify CQC registration, availability, and pricing before booking.
Winchelsea ADHD Services
~18 mi In PersonADHDAdults3–6 weeksADHD £850–£1,150Winchelsea, East Sussex, TN36
Winchelsea ADHD Services
Private ADHD assessment service in Winchelsea. Adult ADHD. In-person and online. Serves the Rother district on the East Sussex coast. Verify CQC registration, availability, and pricing before booking.
Burgess Hill Psychiatry
~19 mi In PersonADHDAdults2–4 weeksADHD £875–£1,250Burgess Hill, West Sussex, RH15
Burgess Hill Psychiatry
Private psychiatry practice in Burgess Hill. Adult ADHD assessment. Serves mid-Sussex including Haywards Heath and Burgess Hill. Verify CQC registration, availability, and pricing before booking.
Haywards Heath ADHD & Neurodevelopmental Clinic
~19 mi In PersonADHDAdults & children3–6 weeksADHD £875–£1,200; child ADHD £1,050–£1,400Haywards Heath, West Sussex, RH16
Haywards Heath ADHD & Neurodevelopmental Clinic
Private ADHD assessment clinic in Haywards Heath. Adults and children. Serves the mid-Sussex corridor. Verify CQC registration, availability, and pricing before booking.
Rye Psychology Clinic
~20 mi In PersonADHDAdults3–6 weeksADHD £850–£1,150Rye, East Sussex, TN31
Rye Psychology Clinic
Private psychology clinic in Rye. Adult ADHD assessment. Serves Rye, Winchelsea, and the Romney Marsh corridor on the East Sussex/Kent border. In-person and online appointments available. Verify CQC registration and availability before booking.
Forest Row Psychology Practice
~21 mi In PersonADHDAutismAdults & children3–6 weeksADHD £875–£1,200; Autism £1,750–£2,400Forest Row, East Sussex, RH18
Forest Row Psychology Practice
Private psychology practice in Forest Row. Adults and children. ADHD and autism assessment. Serves the Ashdown Forest area and East Grinstead. Verify CQC registration, availability, and pricing before booking.
Tonbridge Psychology Clinic
~22 mi In PersonADHDAutismAdults & children3–6 weeksADHD £875–£1,200; Autism £1,700–£2,400Tonbridge, Kent, TN9
Tonbridge Psychology Clinic
Private psychology and neurodevelopmental clinic in Tonbridge. Adult and child ADHD and autism assessment. Serves Tonbridge, Tunbridge Wells, and the Medway Valley. Verify CQC registration and availability before booking.
Tenterden Psychology Practice
~22 mi In PersonADHDAdults3–6 weeksADHD £875–£1,200Tenterden, Kent, TN30
Tenterden Psychology Practice
Private psychology practice in Tenterden. Adult ADHD assessment. Serves the High Weald and Romney Marsh on the Kent/East Sussex border. Verify CQC registration, availability, and pricing before booking.
East Grinstead ADHD Clinic
~22 mi In PersonADHDAdults & children2–5 weeksADHD £875–£1,200; child ADHD from £1,050East Grinstead, West Sussex, RH19
East Grinstead ADHD Clinic
Private ADHD assessment clinic in East Grinstead. Adults and children. Serves the Surrey/East Sussex/West Sussex border. In-person and online. Verify CQC registration and availability before booking.
Henfield Psychology Practice
~24 mi In PersonADHDAdults3–6 weeksADHD £850–£1,150Henfield, West Sussex, BN5
Henfield Psychology Practice
Private psychology practice in Henfield. Adult ADHD assessment. Serves the South Downs between Brighton and Horsham. Verify CQC registration, availability, and pricing before booking.
Shoreham Psychology Practice
~25 mi In PersonADHDAdults3–5 weeksADHD £850–£1,150Shoreham-by-Sea, West Sussex, BN43
Shoreham Psychology Practice
Private psychology practice in Shoreham. Adult ADHD assessment. Serves the coast between Brighton and Worthing. Verify CQC registration, availability, and pricing before booking.
Crawley ADHD Clinic
~26 mi In PersonADHDAdults & children2–5 weeksAdult ADHD £875–£1,200; Child ADHD £1,050–£1,400Crawley, West Sussex, RH10
Crawley ADHD Clinic
Private ADHD assessment clinic in Crawley. Adults and children. In-person and online. Serves Crawley, Horley, and the Gatwick area. Verify CQC registration, availability, and pricing before booking.
Lancing ADHD Clinic
~27 mi In PersonADHDAdults2–5 weeksADHD £850–£1,150Lancing, West Sussex, BN15
Lancing ADHD Clinic
Private ADHD assessment clinic in Lancing. Adult ADHD. In-person and online. Serves the West Sussex coast between Worthing and Shoreham-by-Sea. Verify CQC registration, availability, and pricing before booking.
Sevenoaks Psychology Practice
~28 mi In PersonADHDAdults2–5 weeksADHD £875–£1,200Sevenoaks, Kent, TN13
Sevenoaks Psychology Practice
Private psychology practice in Sevenoaks. Adult ADHD assessment and psychological support. Serves Sevenoaks, Tonbridge, and north-west Kent. Verify CQC registration, availability, and pricing before booking.
Kent Autism Centre
~28 mi In PersonAutismAdults & children4–8 weeksAdult autism £1,700–£2,400; child autism £1,800–£2,500Maidstone, Kent, ME15
Kent Autism Centre
Specialist autism assessment centre in Maidstone. Adult and child autism diagnostic pathways using ADOS-2 and ADI-R. Serves the whole of Kent. Verify CQC registration, current availability, and pricing before booking.
Spire Gatwick Park Hospital
~28 mi In PersonADHDAdults1–4 weeksFrom £850 initial psychiatric consultation; full package — enquirePovey Cross Road, Horley, Surrey, RH6 0BB
Spire Gatwick Park Hospital
Spire private hospital near Gatwick serving west Surrey and north-west Sussex. Outpatient psychiatry for adult ADHD and mental health assessment. Accepts major private health insurance. Convenient for Crawley, Horley, and the Gatwick corridor. Verify consultant availability before booking.
The Autism Service (Kent)
~29 mi In PersonADHDAutismAdults & children4–8 weeksAdult autism £1,495–£1,895; combined AuDHD £2,950Kent (Practice Rooms network — verify location on website)
The Autism Service (Kent)
Part of The Autism Service national clinic network. ADOS-2 and ADI-R assessments for adults and children from age 3. Verify current Kent clinic location directly on their website. CQC registered under TASCC Ltd.
Maidstone ADHD & Psychiatry Clinic
~29 mi In PersonADHDAdults2–5 weeksADHD £875–£1,200Maidstone, Kent, ME14
Maidstone ADHD & Psychiatry Clinic
Private psychiatry practice in Maidstone. Adult ADHD assessment and diagnosis. Serves central Kent including Medway, Sittingbourne, and Maidstone. Verify CQC registration, availability, and pricing before booking.
Worthing ADHD Clinic
~29 mi In PersonADHDAdults2–5 weeksADHD £875–£1,200Worthing, West Sussex, BN11
Worthing ADHD Clinic
Private ADHD assessment clinic in Worthing. Adult ADHD. In-person and online. Serves Worthing, Lancing, and the coast between Brighton and Chichester. Verify CQC registration and availability before booking.
The Autism Service (West Sussex)
~30 mi In PersonADHDAutismAdults & children4–8 weeksAdult autism £1,495–£1,895; combined AuDHD £2,950West Sussex (Practice Rooms network — verify location on website)
The Autism Service (West Sussex)
Part of The Autism Service national clinic network. ADOS-2 and ADI-R assessments for adults and children from age 3. Verify current West Sussex clinic location on their website.
Horsham Mind Health Centre
~30 mi In PersonADHDAutismAdults & children2–5 weeksADHD £875–£1,200; Autism £1,750–£2,500Horsham, West Sussex, RH12
Horsham Mind Health Centre
Private mental health and neurodevelopmental clinic in Horsham. Adults and children. ADHD and autism assessment. Serves mid-Sussex and the Surrey border. Verify CQC registration, availability, and pricing before booking.
Redhill ADHD Clinic
~32 mi In PersonADHDAdults & children2–4 weeksAdult ADHD £875–£1,200; Child ADHD £1,050–£1,400Redhill, Surrey, RH1
Redhill ADHD Clinic
Private ADHD assessment clinic in Redhill serving east Surrey and the Gatwick corridor. Adult and child pathways. In-person and online appointments available. Verify CQC registration, availability, and pricing before booking.
Ashford ADHD Clinic
~32 mi In PersonADHDAdults2–5 weeksADHD £875–£1,200Ashford, Kent, TN23
Ashford ADHD Clinic
Private ADHD assessment clinic in Ashford. Adults. In-person and online options available. Serves Ashford, Folkestone, and the Channel Tunnel corridor. Verify CQC registration, availability, and pricing before booking.
Storrington Psychology Practice
~32 mi In PersonADHDAdults3–5 weeksADHD £850–£1,150Storrington, West Sussex, RH20
Storrington Psychology Practice
Private psychology practice in Storrington. Adult ADHD assessment. Serves the Adur valley and South Downs between Horsham and Worthing. Verify CQC registration, availability, and pricing before booking.
Reigate Psychiatry Clinic
~33 mi In PersonADHDAdults2–5 weeksADHD assessment £900–£1,250Reigate, Surrey, RH2
Reigate Psychiatry Clinic
Independent private psychiatry practice in Reigate. Adult ADHD assessment and diagnosis. Shared care letters provided. Verify current CQC registration, availability, and pricing directly with the practice before booking.
Billingshurst ADHD Services
~34 mi In PersonADHDAdults3–6 weeksADHD £850–£1,150Billingshurst, West Sussex, RH14
Billingshurst ADHD Services
Private ADHD assessment service in Billingshurst. Adult ADHD. In-person and online. Serves the Weald between Horsham and Petworth. Verify CQC registration and availability before booking.
Online providers serving East Sussex (32)
These providers serve all UK postcodes remotely. Many are available via NHS Right to Choose.
Psychiatry-UK
NHS Right to Choose OnlineADHDAutismAdults6–12 months (RTC); 2–4 weeks (private)£950 initial assessment (private)
Psychiatry-UK
Largest RTC provider. Has NHS contracts with multiple ICBs. Also offers private adult autism assessments. Medication titration included in RTC pathway. Experiencing high demand — check current wait times on their website.
ADHD 360
NHS Right to Choose OnlineADHDAdults & children4–8 weeks (private); 6–12 months (RTC)£950 assessment; £1,740 – £2,850 full packages
ADHD 360
One of UK's largest specialist ADHD clinics. Assesses ages 6–76+. CQC inspected. Offers structured care packages rather than one-off assessment fees — compare total cost not just headline price. Capacity for 2,000+ new patients per month.
Psicon
NHS Right to Choose OnlineADHDAutismAdults & children~25 weeks (RTC); 4–6 weeks (private)£1,200 (private, includes QB Check + report)
Psicon
CQC registered since 2019. Works on behalf of multiple NHS Trusts and ICBs. QB Check included as standard. Also offers autism assessments. Online not suitable for all children — clinical suitability assessed first.
Harrow Health
NHS Right to Choose OnlineADHDAdults~5 weeks (RTC)N/A — RTC pathway only (NHS-funded)
Harrow Health
Operating since 2007, ADHD services since 2015. Key differentiator: they manage prescribing and annual reviews directly, removing the need for GP shared care. Important: currently rated 1.6/5 from 77 Trustpilot reviews with widespread complaints about communication — read current reviews carefully before requesting a referral.
RTN Mental Health
NHS Right to Choose OnlineADHDAutismAdults8–12 weeks (private); 4–6 months (RTC)£750 private assessment fee
RTN Mental Health
Online-only RTC provider. Titration and prescribing handled by sister company RTN Medical (CQC regulated). Relatively newer entrant — verify current wait times and patient feedback.
Skylight Psychiatry
NHS Right to Choose OnlineADHDAdults10–14 weeks (private); 6–9 months (RTC)£800 private assessment
Skylight Psychiatry
Smaller RTC provider. Clinical Director Dr Caryl Marshall. Verify current capacity and whether still actively accepting new RTC referrals.
Clinical Partners
OnlineADHDAutismAdults & children1–2 weeksAdults £895; Children (6+) £995
Clinical Partners
One of the largest private providers. Very fast access. In-person clinics across the UK plus online. Follow-up appointments with nurse prescribers £165–£225. Does NOT accept Right to Choose — private pay only. Good option when speed is critical.
The ADHD Centre
OnlineADHDAdults & children2–4 weeksAdults £695–£1,095; Children £1,295 (online) – £1,695 (in-person)
The ADHD Centre
London-based with online option. Uses Conners 3 diagnostic tool for children. Children age 9+ only. Follow-ups £295, repeat prescriptions £75. Wide price range depending on clinician grade and format — check which tier suits.