How to Get an ADHD Assessment From a Private Provider It could take months or even years to receive an ADHD assessment from the NHS. This is due to a lack of specialists and high demand for services. Private clinics provide a faster and more complete alternative to the NHS. https://remingtondnsxc.digitollblog.com/29623914/what-is-adhd-diagnosis-private-how-to-make-use-of-it