ADHD Assessment - Why It's Better to Get a Private One Instead of Waiting on the NHS The NHS offers an individual ADHD assessment but it's a lengthy wait. Some people reported waiting three years. Doctors can refer patients to private clinics or prescribe medication under a shared care agreement https://mariogpvzd.blogoscience.com/35939313/7-things-you-d-never-know-about-adhd-assessment-private