The Cost of Private ADHD Assessments ADHD awareness is increasing because of high-profile celebrities like Sue Perkins and Nadia Sawalha However, the long NHS waiting times are leaving some people who need the diagnosis in a precarious position. Some have to pay for private treatment. In the UK it is http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=1372014