ADHD Assessment - Why It's Better to Get a Private One Instead of Waiting on the NHS The NHS offers an individual ADHD assessment however, it's a long wait. Some have reported waiting for 3 years. GPs can refer patients to private clinics or prescribe medications under a shared-care agreement https://consultant-psychiatrist61958.educationalimpactblog.com/51734710/adhd-assessment-private-tips-from-the-best-in-the-business