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 people have reported waiting for three years. Doctors can refer patients to private clinics or prescribe medications https://psychiatry-uk28478.ttblogs.com/9258415/why-adhd-assessment-private-will-be-your-next-big-obsession