FAQ
Short, plain answers about my background, DR GPT™, my books and talks, and how to book me.
Last updated: October 2026
Harvey Castro, MD, MBA, known as DR GPT™, is an emergency physician, TEDx speaker, author, Advisor to the CEO of Phantom Space, and healthcare AI keynote speaker. He is board-certified in emergency medicine and has more than 20 years in emergency medicine. He is based in Dallas, Texas.
DR GPT™ is the public brand of Harvey Castro, MD, MBA. It is a personal brand, not an OpenAI product and not a clinical service. The correct form is DR GPT™ and the hashtag is #DRGPT. It is not related to the diabetic retinopathy research model or the DrGPT command-line tool, which are separate projects with similar names.
After Harvey Castro published ChatGPT and Healthcare: The Key to the New Future of Medicine in January 2023, reporters and conference producers began introducing him as DR GPT™. The name stuck, and he now uses it as his public brand. The full story is on the DR GPT™ page.
Harvey Castro is Advisor to the CEO of Phantom Space. In that advisory role he advises the CEO on AI strategy.
Harvey Castro has written 47 books, and the Books page lists his titles. His titles include ChatGPT and Healthcare: The Key to the New Future of Medicine (January 2023), Pivot or Perish: How Physicians Can Reinvent Their Careers Before AI Reinvents Medicine (2026) and AI for Everyone in Healthcare: The Clinician's AI Playbook (2026). He also co-wrote Telemedicine Wars (2025) with Michael Gorton and Jay H. Sanders.
He speaks about AI in healthcare that works in real clinical settings: responsible AI adoption, patient safety, clinical workflow, physician leadership and the future of medicine. His signature keynotes are Accountable Intelligence, AI That Survives the Workflow, and SAFE AI. Talks are educational and futurist, not clinical advice for individual patients.
Yes. He has given five TEDx talks: TEDxWarrenton, TEDxPurdueU, TEDxBabsonCollege, TEDxAWC and TEDxSouthlake. You can watch them on the TEDx talks page.
Ranked #1, Thinkers360 Top 50 Global Thought Leaders and Influencers on Healthcare 2026. Ranked #3 globally on the Thinkers360 Top 50 Thought Leaders and Influencers on AI (2026). He was also named #24 in Offcall's Top AI Healthcare Voices in 2026.
Start on the Speaking page or go straight to the booking form. Share your date, location, audience and event format. Harvey confirms fit on a short call, then sends a proposal and holds the date. Fees are quoted privately and are not listed on this site.
Yes. He delivers keynotes in English, in Spanish, or in a mix of both. The Spanish speaking page is Conferencista IA en salud.
He has given keynotes at HIMSS Europe and HIMSS AI and on stages across Europe, Asia, Africa, South America and Australia. He is based in Dallas, Texas, and is available for in-person and virtual engagements.
The media kit has his short and full bios, speaking topics, TEDx talks, podcast angles and booking details for meeting planners. For interviews and media requests, use the contact page.
He earned his MD at the University of Texas Medical Branch at Galveston and completed his emergency medicine residency at St. Luke's University Health Network. He is board-certified in emergency medicine and holds a Physician Executive MBA from the University of Tennessee, Knoxville. His past emergency medicine work includes Parkland Hospital, Medical City, Elite Care and The Colony ER Hospital.
He writes regularly for KevinMD and on the DR GPT™ Substack. His ORCID iD is 0009-0005-7953-325X, and he is listed on Wikidata as Q141445647.