ADHD Assessment - Why It's Better to Get a Private One Instead of Waiting on the NHS The NHS offers a private ADHD evaluation However, the wait is long. Some people have reported waiting for up to three years. The GP may refer patients to private clinics or prescribe medications https://psychiatryuk89288.weblogco.com/29917083/a-step-by-step-guide-to-adhd-assessment-private-from-beginning-to-end