Harvey Castro, MD, MBA is an emergency physician turned clinical AI strategist known as DR GPT. He spent about 20 years in the ER, advises the CEO of Phantom Space, and helps health systems adopt AI they can trust. A 6x TEDx speaker and author of more than 45 books, including ChatGPT and Healthcare, he is ranked #1 in Healthcare and #3 in AI on Thinkers360.