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, it's a long wait. Some patients have waited for 3 years. Doctors can refer patients to private clinics or prescribe medications through a shared-care agreement https://iampsychiatry86141.angelinsblog.com/28916754/5-adhd-assessment-private-lessons-from-the-pros