ADHD Assessment - Why It's Better to Get a Private One Instead of Waiting on the NHS The NHS can provide a private ADHD assessment however, it's a long wait. Some people have reported waiting for three years. The GP may refer patients to private clinics or prescribe medications under https://holdenjmngu.ampblogs.com/it-s-the-good-and-bad-about-adhd-assessment-private-66588681