The NRC is the only national resource where people can receive an individualized response from a Health Information Specialist knowledgeable in the full range of issues concerning ADHD. We receive inquiries from all over the United States and more than 20 countries. Our English and Spanish-speaking Health Information Specialists respond to queries Monday–Friday, 1–5pm EST. If you have a question or would like to talk to somebody about ADHD, call 1.800.233.4050.