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 patients have reported waiting for three years. Doctors can refer patients to private clinics or prescribe medications https://private-adhd-assessment43950.isblog.net/a-an-instructional-guide-to-adhd-assessment-private-from-beginning-to-end-46483870