How Much Is A Private ADHD Assessment? If you'd like to be able to reduce your waiting times for an ADHD assessment, you can do so by paying privately. This is called your Right to Choose and it is an option available to anyone registered with a GP in England. https://grantham-luna.thoughtlanes.net/the-reasons-you-should-experience-private-adhd-assessment-near-me-at-least-once-in-your-lifetime/