DR GPT™ Insights

Every article, in one place

Writing on AI in healthcare from Harvey Castro, MD, MBA, a board-certified emergency physician who never stopped seeing patients. Newest first.

September 7, 2026

Patient trust in AI starts with human accountability

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September 5, 2026

AI strategy for hospitals: the 5 mistakes boards make

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September 4, 2026

7 rules for how physicians should use AI responsibly

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September 4, 2026

Five TEDx Lessons on AI, Medicine, and Human Judgment

What five TEDx stages taught an emergency physician about explaining AI to non-technical audiences, and what those lessons reveal about clinical judgment itself.

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September 4, 2026

DR GPT™: Why I Built a Physician-Led AI Voice for the Future of Medicine

The story behind DR GPT™, told by the emergency physician who built it. Why healthcare AI needed a clinical voice, and what the brand stands for.

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September 4, 2026

The Physician's Role in Responsible AI Adoption

The most expensive AI mistakes I have seen in healthcare were not technical. They were organizational. Somebody bought a tool, somebody configured it, somebody announced it at a town hall, and no practicing clinician was in the room for any of those three moments.

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September 4, 2026

Clinical AI Is Not a Technology Problem. It Is Trust, Workflow, and Judgment

A hospital can buy an excellent model and still get a bad outcome. I have watched it happen more than once, and the postmortem almost never lands on the algorithm.

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September 4, 2026

How AI Can Help the Healthcare Workforce Crisis Without Replacing Clinicians

The framing of this debate has been wrong from the beginning.

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September 4, 2026

Healthcare AI for Boards: 10 Questions Every Board Member Should Ask

Board members keep telling me the same thing in different words. They know AI belongs on the agenda. They do not know what they are supposed to ask, and they do not want to spend their one question of the meeting on something that makes them sound naive.

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September 4, 2026

The Future of Healthspan and AI: From Sick Care to Predictive Medicine

I have spent my career at the end of the pipeline.

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September 4, 2026

Healthcare AI Keynote Speaker: What Hospital Leaders Need to Hear in 2026

I have given AI keynotes to rooms full of hospital executives, and I can usually tell within ninety seconds whether the room is going to move.

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September 4, 2026

What Every Hospital CEO Should Know Before Buying AI

I have worked enough overnight shifts to know what a bad alert sounds like. It sounds like nothing, because by 2 a.m. nobody is listening anymore.

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