ADHD Assessment - Why It's Better to Get a Private One Instead of Waiting on the NHS The NHS offers a private ADHD evaluation, but 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://iampsychiatry-uk23623.getblogs.net/61882199/a-guide-to-adhd-assessment-private-from-beginning-to-end