The Cost of Private ADHD Assessments The public is becoming aware of ADHD due to the presence of celebrities such as Sue Perkins and Nadia Sawalha. However, long NHS waiting times leave some people in a vulnerable situation. Some have to pay for private treatment. In the UK it is http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=1372789