How Much Is a Private ADHD Assessment? If you'd like to cut down on the length of time you wait for an ADHD assessment, you can do so by choosing to pay privately. This is known as Your Right to Choose, and is available to all registered doctors in England. https://uk-psychiatrist11805.dm-blog.com/29796536/are-adhd-assessment-uk-private-the-greatest-thing-there-ever-was