ADHD Assessment - Why It's Better to Get a Private One Instead of Waiting on the NHS The NHS can offer an individual ADHD assessment however, it's a long wait. Some have reported waiting for up to three years. Doctors are able to refer patients private clinics or prescribe medication https://psychiatry-uk88796.digitollblog.com/29179879/15-startling-facts-about-adhd-assessment-private-you-ve-never-known