The Cost of Private ADHD Assessments ADHD awareness is increasing because of high-profile celebrities like Sue Perkins and Nadia Sawalha, but long NHS waiting times are putting some people who need the diagnosis in a precarious position. Some even have to pay for private treatment. In the UK it is http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=1557311