Harley Street ADHD was founded to offer high-quality assessments and support for adults with neurodevelopmental and mental health needs. Our team of expert clinicians, with deep experience in both NHS and private settings, deliver comprehensive ADHD diagnostic services online swiftly and without long wait times.

Unsure if an ADHD assessment is right for you? Begin with our free adult ADHD quiz, a friendly screening tool that highlights common inattentive, hyperactive, and impulsive traits. From there, you can book a Speak With Us appointment or a neurodevelopmental screen, designed for quick support and guidance on your next steps. These initial steps ensure you’re supported promptly no lengthy waiting lists involved.

Once you’ve decided to proceed, you’ll receive comprehensive questionnaires to complete at your convenience. These include developmental history, mental health background, and symptom rating scales standard components used to inform clinical judgment in ADHD diagnosis. This preparatory phase makes the actual assessment more efficient and personalised.

Your diagnostic appointment is conducted online, via a secure and confidential platform. The clinician will use a structured interview such as the DIVA-5 (Diagnostic Interview for ADHD in Adults) to explore your symptoms in detail, evaluate their onset, persistence, and impact across different areas of life. Clinical rigor meets convenience here, with expert diagnostics delivered directly to you.

Next, our clinicians integrate your questionnaire responses with information from the interview to formulate an accurate diagnosis. Within this streamlined process, you benefit from rapid turnaround times a significant advantage compared to other waiting periods that can stretch months or years. You’ll receive clear results quickly, enabling you to access the right support without delay.

Once the diagnosis is complete, we prepare a comprehensive report outlining findings, interpretation, and clinical recommendations. Delivered securely and digitally, this document can be shared with GPs or other professionals as needed. Fast, confidential, and ready when you are.

If your assessment indicates ADHD and medication is appropriate, we’ll devise a personalised treatment plan aligned with NICE guidelines.

If you or someone you know is wondering, “What is the diagnosis process for ADHD?”, Harley Street ADHD makes it simple. From our useful screening tools and compassionate clinician interviews to fast report delivery and personalised treatment setup every step is tailored to you, with no unnecessary delays.

Take the first step today with our free ADHD quiz, or contact us to schedule your online assessment and discover a compassionate, high-quality, and efficient diagnosis