The Cost of Private ADHD Assessments The public is becoming aware of ADHD thanks to celebrities like Sue Perkins and Nadia Sawalha. However, long NHS waiting times put some people in a dangerous situation. Some patients are being forced to pay for private treatments. In the UK, it is possible http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=1372346