How to Get an ADHD Assessment From a Private Provider The NHS can take months, or years, to assess ADHD. This is due to a lack of specialists and a high demand for services. There are many private clinics that provide a faster and more comprehensive alternative to the NHS. https://private-adhd-assessment02333.aboutyoublog.com/30572036/a-handbook-for-adhd-diagnosis-private-from-beginning-to-end