The Cost of Private ADHD Assessments ADHD awareness is increasing thanks to high-profile figures like Sue Perkins and Nadia Sawalha However, the long NHS waiting times have left some people who need an assessment in a precarious position. Some are even required to pay for private treatment. In the UK http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=1371882