ADHD Assessment - Why It's Better to Get a Private One Instead of Waiting on the NHS The NHS offers a private ADHD evaluation however, the wait can be long. Some people reported waiting three years. GPs may refer patients to private clinics, or prescribe medications under a shared-care agreement https://privateadhdassessment33332.worldblogged.com/35695182/10-tips-for-adhd-assessment-private-that-are-unexpected