How Much Is a Private ADHD Assessment? If you want to decrease your waiting times for an ADHD assessment, you can do so by paying privately. This is known as your Right to Choose, and it is a choice available to anyone who is registered with a GP in England. https://reidmbpak.blogdosaga.com/29156557/why-do-so-many-people-want-to-know-about-adhd-assessment-uk-private