ADHD Assessment - Why It's Better to Get a Private One Instead of Waiting on the NHS The NHS offers the option of a private ADHD assessment However, the wait is long. Some have reported waiting for 3 years. GPs can refer patients to private clinics or prescribe medication under https://edgaryhmli.tribunablog.com/the-step-by-step-guide-to-choosing-the-right-adhd-assessment-private-44254370