ADHD Assessment - Why It's Better to Get a Private One Instead of Waiting on the NHS The NHS offers a private ADHD assessment, but it's a long wait. Some people reported waiting three years. Doctors are able to refer patients private clinics or prescribe medication in a shared-care arrangement https://private-psychiatrist27013.blogrelation.com/35282016/how-adhd-assessment-private-changed-my-life-for-the-better