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 is long. Some patients reported waiting for three years. GPs can refer patients to private clinics or prescribe medication in a shared-care arrangement https://knoxtnzxf.blazingblog.com/29915316/why-all-the-fuss-about-adhd-assessment-private