ADHD Assessment - Why It's Better to Get a Private One Instead of Waiting on the NHS The NHS offers an in-person ADHD assessment, but it's a long wait. Some people reported waiting three years. GPs may refer patients to private clinics, or prescribe medications in a shared care arrangement https://psychiatristinuk80692.tribunablog.com/what-s-the-reason-adhd-assessment-private-is-everywhere-this-year-44103651