How to Get an ADHD Assessment From a Private Provider It could take months or even years to receive an ADHD assessment through the NHS. This is due to a lack of specialists and high demand for services. Private clinics provide a faster and more complete option than the NHS. https://privateadhdassessment68900.blog-gold.com/36053618/a-guide-to-adhd-diagnosis-private-from-start-to-finish