This combined Autism/ADHD diagnostic service offers a transformative solution at a fraction of the cost.

Embark on a journey of understanding and support with our Trusted Partners, who provide accessible and comprehensive assessments that adhere to the highest standards.

Accredited Chartered Clinical Psychologists will conduct a thorough ADHD diagnostic assessment alongside a comprehensive autism evaluation. This combined approach ensures a holistic understanding of your unique neurodivergent profile.

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Here’s what a Combined diagnostic assessment service includes


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Full Diagnostic Report – With RTN Mental Health Solutions, you’ll receive a full report tailored for places of education, workplaces, and healthcare providers. Their dedicated team will guide you through a post-diagnosis online session, providing invaluable support and answering your questions.

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The urgency of obtaining a diagnosis – From the moment you book, your journey is prioritised. Soon after booking you will receive an onboarding email and the process will formally commence. Their efficient timeline ensures completion within 12-16 weeks, naturally dependent on the promptness of the supply of your supporting information.

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You will be better placed – Partnering with NTI means we can provide a comprehensive aftercare plan that recognises the intricacies of multiple diagnoses. RTN’s combined assessment saves you time, avoids duplicating form filling, and offers the reassurance of covering both autism and ADHD.

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Flexibility With Our Payment Options – To ease the financial burden, our partners offer the convenience of paying in 5 instalments, making their services more accessible for you and your family. Once you have paid the booking deposit, you can agree the specific payment terms afterwards.

Our Trusted Partners

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So Why Choose RTN?

 RTN - working with communities and corporates, to ensure individuals can achieve better mental health outcomes, without spending thousands or languishing on waiting lists.

In the UK, waiting times for diagnoses can be as long as two years. Private assessments are often financially inaccessible and can have complex pricing structures. RTN provides an affordable and speedy assessment process to ensure Neurodivergent people and their networks can receive the right support.

The RTN Promise

  •  A full diagnostic assessment by a Chartered Clinical Psychologist
  •  To provide you with a detailed report that you can share with schools, GPs, employers or any other relevant parties
  •  To complete your assessment within 16 weeks of booking
  •  A mental health assessment by a registered Psychotherapist.
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The RTN Team

RTN Autism Diagnosis Worker

Dr Ann Steele

Clinical Psychologist, BSc Hons (First Class) 
MSc Oxon, DPhil Oxon, DClinPsy

Ann is a Clinical Psychologist with over 10 years of experience working in the NHS and in independent practice. Ann also provides teaching and supervision to other mental health professionals training within the NHS.

RTN Autism Diagnosis Worker

Dr Charmain Round

Clinical Psychologist, DClinPsy
PsychD; PhD; CPsychol; AFBPsS

A Chartered Clinical Psychologist with over 25 years’ experience working in the NHS providing assessment, therapy, training, support and consultation to neurodiverse adults and children, their families, support networks and other professionals. 

RTN Autism Diagnosis Worker

Dr Renata Fialho

Clinical Psychologist, Masters, PhD
PsychD; PhD; CPsychol; AFBPsS

Dr Renata Fialho works in an NHS specialist service at the general hospital, having developed extensive experience with Post covid syndrome, depression, anxiety, emotional difficulties associated with chronic illness, physical persistent symptoms, and Functional Neurological Disorders.

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Combined Diagnosis for Adults

£215 Booking Deposit 

The list price is ÂŁ1,590 so once you have paid the deposit at checkout, the remaining balance will be ÂŁ1,375. This balance is payable to RTN and can be paid in 3 x instalments.

An Adult is defined as anyone over the age of 18

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Combined Diagnosis for Children*

£215 Booking Deposit 

The list price is ÂŁ1,1995 so once you have paid the deposit at checkout, the remaining balance will be ÂŁ1,780. This balance is payable to RTN and can be paid in 3 x instalments.

 * A child is defined as someone under the age of 18

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Endorsed and supported by NTI

"On a daily basis, I hear of parents, families, and adults, looking for fast and financially accessible autism diagnoses. Now RTN are providing a quick assessment, at an affordable rate, completed to the highest standards. RTN is what has been needed for so long, and will help so many. A lovely team, good people, and a heart-led firm. Very highly recommended". 

Jude Morrow, CEO and Founder of NTI

Frequently Asked Questions

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Need Help Before Deciding On The Right Diagnostic Option For You?

Click HERE to book a free 15 minute screening call with NTI. Telephone and video call options available.