ADHD Assessment - Why It's Better to Get a Private One Instead of Waiting on the NHS The NHS offers a private ADHD assessment however, the wait can be long. Some people reported waiting three years. GPs can refer patients to private clinics or prescribe medications under a shared-care agreement https://danteqenyy.blogdon.net/the-reasons-adhd-assessment-private-is-more-dangerous-than-you-thought-45954383