Combined ADHD and Autism (AuDHD) Assessment — Cornwall
ADHD and autism frequently co-occur, and the way they interact can make each condition harder to identify in isolation. A combined assessment considers both conditions together — providing a more complete and clinically accurate picture than two separate assessments conducted independently.
We are CQC-registered and follow NICE guidelines. Our assessments are thorough, unhurried, and face-to-face in Cornwall.
Why choose Porthia for your combined assessment?
- Led by our highly qualified Psychiatrist and Psychologist, face to face in Cornwall. (Online can be discussed).
- CQC-registered — the same regulatory standard as NHS providers
- NICE-compliant — thorough history-taking, corroborative information, structured diagnostic tools
- Clinicians qualified in Gold-standard assessment tools: ADOS and ADI-R for autism; validated ADHD rating scales
- Face-to-face in Hayle, Cornwall — not a remote, volume-driven online service
- Detailed written report shared with your GP; shared care supported if available.
- Dr. Ley offers specialist post-diagnostic services, particularly for those in further or higher education. (Additional charges see Fees section). Learn more about post-diagnostic services to support Autism in further or higher education environments.
What is AuDHD?
AuDHD is the term increasingly used by the neurodivergent community to describe the experience of having both ADHD and autism. Many autistic adults also meet diagnostic criteria for ADHD, or have traits of ADHD and many adults with ADHD have unrecognised autistic traits.
When both conditions are present, they interact in complex ways. Assessing each in isolation can miss the full picture — or produce an incomplete diagnosis that leaves people without the support they need.
A combined assessment considers both simultaneously, using structured clinical methods, detailed developmental history, and standardised tools — producing a more accurate and complete formulation.
Who is this assessment for?
A combined ADHD and autism assessment may be right for you if:
- You have traits of both ADHD and autism and want to understand the full picture
- You have a previous ADHD or autism diagnosis that felt incomplete
- You are a student in further or higher education experiencing difficulties that have not been fully explained
- You are an adult managing unexplained difficulties with focus, organisation, sensory sensitivity, or social interaction
- You have been told you may have one condition but suspect the other is also present
- You want a single, thorough process rather than two separate assessments
Our service is open to adults aged 18 and over. We are particularly well placed to support those in further and higher education, where neurodiversity can affect learning, wellbeing, and daily life in distinct ways.
Private ADHD and autism assessments vary significantly in quality. Porthia is CQC-registered and follows NICE guidelines — the same clinical standards expected in NHS practice. If a diagnosis is not clinically supported, we will say so.
What is the process
Assessment
Before your appointment, we ask you to complete detailed questionnaires about your experiences, history, and current challenges. We also ask a person who knew you well in childhood — a parent, sibling, or carer — to provide corroborative developmental information. This is a clinical requirement and is essential to a thorough assessment.The assessment is conducted face-to-face in Hayle, Cornwall (online assessments can be considered). It draws on the ADOS (Autism Diagnostic Observation Schedule), ADI-R (Autism Diagnostic Interview-Revised), and validated ADHD rating scales. We will explore your developmental history, current presentation, how symptoms affect your daily life, work, and relationships, and any co-occurring conditions. This is an unhurried, in-depth conversation — not a checklist.
Treatment Plan
A follow-up session to discuss findings, explain the diagnostic formulation clearly, and agree a personalised treatment plan. You will have the opportunity to ask questions and discuss next steps. A comprehensive written report provided via your secure patient portal. This documents the full assessment, diagnostic conclusions, and recommendations. It is also sent to your GP and is suitable for use with employers, universities, and other services when requesting reasonable adjustments.
Ongoing and Post-diagnostic Support
Follow-up appointments help monitor your progress and adjust treatments as needed. They are needed if we are prescribing medications for you. We maintain close communication with your GP and other healthcare providers, ensuring coordinated care while supporting your journey toward improved wellbeing. Where appropriate post-diagnostic support is available from Dr. Eleanor Ley, our Educational Psychologist — particularly relevant for adults in further or higher education. This is booked separately. See below. Learn more about Autism Post Diagnostic Services.
How to book
Please complete our contact form and our team will respond promptly.
Fees & Payments
£1590- Includes: pre-assessment questionnaires and preparation time (up to 60 minutes); initial assessment of up to 90-120 minutes; one treatment planning and discussion session of up to 30 minutes; written report delivered via secure patient portal.
Payments are only taken using our secure payment option when you book online.
Our cancellation policy requires at least 7 days notice to avoid a fee. Cancellations made within 2 working days will not be refunded. For more information please read our Terms and Conditions. Please contact us promptly to reschedule or cancel
Important Information
- Initial assessment appointments will last up to 120 minutes, follow-up appointments last up to 30 minutes. 30 minutes is required by the Doctors before the meeting to review information provided by the patient.
- The fee for this service is £1590 and this covers the preparation time, initial assessment and one follow up and treatment planning session.
- Additional follow-up appointments with a Pychiatrist are chargeable at a rate of £190 for up to 30 minutes.
- Post Diagnostic Psychological Services are chargeable at a rate of £150 for up to 50 minutes. Learn More
- Appointments are delivered face to face. Online appointments are considered.
- Treatment plans are provided as part of the fee electronically on our patient portal.
- Dr Murton does not provide emergency or wrap-around care outside of booked appointments. Post-consultation queries (e.g., regarding treatment plans or prescription dosage) and unplanned third-party (e.g. family or other healthcare providers) correspondence require chargeable follow-up appointments, or chargeable time.
Referral Information
Referral Process
To refer a patient or yourself, simply contact our clinic with the
individual’s details and relevant medical information. Our team will follow up to coordinate an appointment.
General Practitioners
If a patient makes a self referral or a referral does not come from their GP, with permissions we will provide our assessment reports to the the patient’s GP and liaise where appropriate.
Insurance Companies
We are currently not affiliated with insurance companies or private hospitals but may be in the future.