How Much Does A Private ADHD Diagnosis Cost? If you are an adult suffering from ADHD you may have to pursue a private path to get diagnosed. This is a great alternative, since private psychiatrists are skilled in diagnosing ADHD in adults. They also test for co-morbidities, such as anxiety https://telegra.ph/What-Freud-Can-Teach-Us-About-Private-Assessment-For-ADHD-03-06