How to Get an ADHD Assessment in a Shorter Time If you are a registered NHS patient in England you can to access an ADHD assessment via the Right to Choose path. This is faster than using NHS. Private assessments are conducted either by a psychiatrist, psychologist, or specialist nurse. https://kameronuonca.madmouseblog.com/10179186/why-adhd-diagnosis-private-is-tougher-than-you-think