AI that holds up at the bedside, built by a doctor who still works the floor.
Compute in orbit. Care on Earth. I am an emergency physician and Chief AI Officer at Phantom Space, building AI infrastructure that reaches from orbit to the bedside. Known as DR GPT™.
Most hospital AI works in the demo and dies in the workflow. I am Harvey Castro, MD, MBA, an emergency physician and healthcare AI keynote speaker, and I help health systems get their AI past the pilot. Known as DR GPT™.
I am an emergency physician who still takes shifts, and for the last several years I have built and advised on healthcare AI where the decisions carry real weight. This is the short version of how I got here, from the clinical work to the companies I built to the AI work I do now as DR GPT™.
Services that help healthcare leaders use AI with clarity, judgment, and measurable impact.
AI Strategy & Healthcare Consulting
Strategic guidance for healthcare organizations implementing artificial intelligence responsibly and effectively. Navigating the intersection of technology and patient safety.
Executive Education
Briefings for boards and leadership teams on AI readiness and transformation.
Clinical Advisory
Physician-led advisory focused on patient safety, ethics, and clinical integration.
Keynote Speaking
National and international speaking engagements on AI, medicine, innovation, and the future of healthcare.
Book Harvey Castro MD, known as DR GPT™, for your next healthcare AI keynote
I speak to healthcare leaders, boards, and medical conferences about AI that works in a real clinic, not just in a demo. Because I am a physician first, I talk about how care actually happens and where AI helps or gets in the way, so audiences leave with an honest, practical view of how to adopt it well.
Healthcare AI keynotes from DR GPT™, a physician who still works the floor
To bring me to your next event, or for physician-led guidance on adopting AI in healthcare, use the contact form or reach out directly. I am available for keynotes, board advisory, and executive briefings.
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DR GPT™ Healthcare AI Certificate
A physician-led certificate in responsible healthcare AI, with a clinician track and a leadership track. Founding-member price is $299. It is a certificate of completion, not accredited CME.
See the certificateThe SAPIENT Year
A year of daily practice from an emergency physician. One reflection, one question to carry through the day, and one small action, in under two minutes each morning for 365 days. The nine-module course and both books come with it. $49 for the founding 500, down from $99, or $7 a month.
See The SAPIENT YearThe Human Voice Advantage
A 12-week voice-performance system for physicians, executives, and founders. 158 lessons, 84 daily sessions of five to seven minutes, twelve checkpoint quizzes, and a completion certificate. $149 one time, lifetime access. The Field Guide eBook covers the framework on its own, free.
See The Human Voice Advantage