ADHD Assessment - Why It's Better to Get a Private One Instead of Waiting on the NHS The NHS offers a private ADHD assessment, but the wait is long. Some people reported waiting three years. The GP may refer patients to private clinics, or prescribe medication under a shared-care agreement https://ukpsychiatrist54190.wssblogs.com/29781232/5-adhd-assessment-private-related-lessons-from-the-pros