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 can be long. Some patients reported waiting for three years. GPs may refer patients to private clinics, or prescribe medication https://uk-psychiatry52097.tinyblogging.com/the-best-adhd-assessment-private-techniques-for-changing-your-life-73412785