How Much Does A Private ADHD Diagnosis Cost? If you are an adult suffering from ADHD You may have to take the private route to be diagnosed. This is a good option since many private psychiatrists have experience in diagnosing adults with ADHD. They will also check them for co-morbidities https://beatty-barker.blogbright.net/how-adhd-diagnosis-private-arose-to-be-the-top-trend-on-social-media/