How Much Is a Private ADHD Assessment? If you'd like to decrease your waiting times for an ADHD assessment you can do that by opting to pay privately. This is known as your Right to Choose and it is a choice available to anyone registered with a GP in England. https://chanceisnyl.csublogs.com/36210473/how-adhd-assessment-uk-private-became-the-hottest-trend-in-2023