ADHD Assessment - Why It's Better to Get a Private One Instead of Waiting on the NHS The NHS offers an individual ADHD assessment However, the wait is long. Some people reported waiting three years. Doctors are able to refer patients private clinics or prescribe medications through a shared-care agreement https://lorenzopeqdp.answerblogs.com/29955591/what-is-adhd-assessment-private-and-why-is-everyone-talking-about-it