Healthcare CIO · CTO · AI Practitioner

David Evans —
figuring out what
actually works.

Practitioner AI: building real things, documenting what works, and sharing what I learn — because the most useful AI voices belong to experienced practitioners.

About

Twenty years of
making technology work.

I spent my career as a healthcare CIO — leading technology strategy across some of the largest diagnostic and health system organizations in the country. Along the way I learned that the best technology decisions come from people who understand both the problem and the tools.

That belief is what drives my current focus on AI. Not the hype. Not the theory. The practice. I am building real things, documenting what works, and sharing what I learn — because I think the most useful AI voices right now belong to experienced practitioners, not just technologists.

My AI journey began with a simple question: can I actually build something useful without a development team? The answer turned out to be yes — but only once I started thinking like a builder instead of a user.

Career highlights

CTO — Antech Diagnostics (Mars Pet Health), $1.1B network, 45 countries
CIO — BioReference Health, $1B national diagnostic laboratory
CTO — Northwell Health Laboratories, $10.1B health system
VP IT / CIO — Quest Diagnostics, 1,500-person IT organization
BS Applied Physics — Stockton University
MIT Sloan · Harvard Kennedy School — executive programs

Projects

Real tools, built
without a developer.

● Live
Instant Pot Doc logo

Instant Pot Doc

Converts stovetop recipes for electric pressure cookers. Strict state machine flow, fill limit safety, ingredient substitutions, smart scaling. Built without a developer.

Full story →
● Live
🌐

davidsevans.com

This site. Built by briefing Claude with a structured document, then iterating in a single session. A demonstration that the process works on its own terms.

Full story →
◐ In Development
🔐

LifeVault

A second AI-powered tool in development. Details and full story coming as the build progresses.

Coming soon

Practitioner AI

A six-part LinkedIn series
on building with AI.

A weekly series documenting what it looks like to actually build AI tools — not as a developer, but as an experienced executive who decided to figure out what works. Posts publish weekly, Tuesday or Wednesday morning.

01

The Origin Story

How a practical experiment with recipe conversion became a lesson in AI consistency — and the beginning of a larger journey.

Published Apr 11
02

The Victory Lap That Wasn't

Prompt drift, ChatGPT diagnosing its own ceiling, and the moment I realized I needed a different tool.

Coming soon
03

When the Tool Tells You It's the Wrong Tool

Switching to Claude, building a web app in one conversation, and what that says about AI capability.

Coming soon
04

Building Something Real

instantpotdoc.com goes live. What it takes to deploy a working AI tool without a development team.

Coming soon
05

I Asked AI to QA Itself

Running a consistency stress test and drift report. How to verify that what you built actually works.

Coming soon
06

What This Means for Executive Leaders

The so what. What this experiment reveals about AI readiness, practitioner mindset, and where leaders should focus.

Coming soon

Contact

Let's connect.

Email

dse.usa@gmail.com

LinkedIn

davidsevans1