About
Currently building ΔN1, a learning system for one body, and shipping Zone Pedal, a heart-rate-driven training app that runs entirely on-device.
Before that: Purdue biomedical engineering, where I published on whether osteoporosis drugs actually make bones stronger. Then fifteen years building AI systems in healthcare. Medical imaging, diagnostic tools, ECG analysis for medical devices, health data platforms. Different companies, different technologies, same lesson: the problems that kill healthcare AI aren’t technical. They’re structural. Bad data, vendor gatekeeping, regulatory promises without enforcement, incentives that don’t align with patients.
I started Phreable in 2022 to make medical records usable for patients. I bet on the 21st Century Cures Act forcing health systems to open their data. I built the platform, tested it with real records, and hit three walls at once: models that hallucinated on clinical content, data that was unreliable even when accessible, and legislation nobody enforced. I walked away before putting patients in front of something I couldn’t trust.
Every wrong assumption pointed to its inverse. You don’t need comprehensive medical records; the most important health data is what the patient already knows. You don’t start from all the data and compute an answer; you start with the person and build understanding from there. That inversion became ΔN1.
Colorado. Two kids. I build things.
Projects
- ΔN1 Health intelligence that learns what works for one body
- Zone Pedal Heart-rate-driven smart trainer, on-device, no accounts
- Phreable AI health platform, 2022–2024. What it taught became ΔN1.