ADHD Assessment - Why It's Better to Get a Private One Instead of Waiting on the NHS The NHS can offer a private ADHD assessment but it's a lengthy wait. Some people have reported waiting for up to three years. Doctors can refer patients to private clinics or prescribe medications https://iampsychiatry91748.glifeblog.com/29222513/how-to-know-the-adhd-assessment-private-which-is-right-for-you