How Much Does A Private ADHD Diagnosis Cost? You might have to take the private option if you are an adult who suffers from ADHD. This is a viable option since many private psychiatrists have experience in diagnosing people with ADHD. They will also screen for co-morbidities, such as anxiety https://xn--80adec2ampndbs9h.xn--p1ai/user/doubtstem6/