How Much Is a Private ADHD Assessment? You can cut down on the time required for an ADHD evaluation by paying for it privately. This is known as your Right to Choose, and it is an option that is available to anyone who is registered with a GP in England. https://psychiatristuk43166.ivasdesign.com/51910847/15-things-you-re-not-sure-of-about-adhd-assessment-uk-private