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Doctors Who Code

The official site of Chukwuma Onyeije, MD, FACOG.

Doctors Who Code is where I write as an Atlanta maternal-fetal medicine specialist and physician-developer building AI tools, clinical documentation systems, and physician-led software.

If you searched for Chukwuma Onyeije MD, Doctors Who Code, or physician-builder essays on AI in medicine, you are in the right place.

Clinical Work

Maternal-Fetal Medicine at Atlanta Perinatal Associates

Builder Focus

AI, documentation, interoperability, and bedside tools

Physician seated in a clinical office with a circular second-brain knowledge vault of case notes, guidelines, literature, protocols, and insights

Featured Now

The Physician's Second Brain: A 5-Post Series

A complete guide to building an LLM-powered clinical knowledge vault. Why existing PKM failed physicians, how to build one that works, and why this is the infrastructure layer physicians must own.

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Physician-Developer
AI in Medicine
Maternal-Fetal Medicine
Clinical Workflow
FHIR
Python
TypeScript
Clinical Documentation
Interoperability
Medical Billing
OpenMFM
Bedside Tools

141

Published Essays

367

Recurring Topics

MFM

Clinical Specialty

ATL

Clinical Base

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Physician workstation showing a clinical evidence synthesis knowledge vault beside medical references and notes
Artificial Intelligence Featured

Building the Physician's Knowledge Flywheel

Why the vault gets exponentially more valuable the more you use it. The long-game thesis: this is the clinical infrastructure that vendors cannot build.

· 10 min read
second braincompound knowledgephysician builder
Physician using a command-driven clinical reasoning interface across dual monitors with case comparison and SOAP structure
Clinical + Code Featured

The Thinking Partner Commands Every Physician Should Build

Slash commands that replace the morning literature review. /challenge, /emerge, /connect, /close-clinic, /graduate: clinical reasoning augmentation, not automation.

· 11 min read
second brainslash commandsclinical reasoning
Physician-builder at a laptop with a local clinical knowledge graph, binders, stethoscope, and private local server
Technology Featured

The Physician's Stack: Obsidian + Claude Code + Local LLM

How to build a clinical knowledge vault without sending patient data to anyone's server. The two-vaults architecture, ingestion workflows, and the HIPAA-first policy.

· 12 min read
second brainObsidianClaude Code
Physician workstation showing clinical evidence synthesis in a dark knowledge vault interface beside medical references
Artificial Intelligence Featured

What Karpathy Actually Built (and Why It Matters for Medicine)

The compilation analogy, explained for clinicians. How LLM Wiki compiles clinical knowledge into synthesized entity pages instead of re-retrieving chunks on every query.

· 9 min read
second brainKarpathyLLM Wiki
Physician overwhelmed by unread medical PDFs, journal articles, guidelines, treatment protocols, and abandoned digital notes
Artificial Intelligence Featured

The PKM System That Was Never Built for You

Why every personal knowledge management app failed physicians specifically, and why Karpathy's April 2026 LLM Wiki changes everything.

· 9 min read
second brainPKMKarpathy

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About the Author

Chukwuma Onyeije, MD, FACOG

I am a maternal-fetal medicine specialist at Atlanta Perinatal Associates and a physician-developer building AI-powered clinical tools because physicians with domain expertise build better healthcare technology than distant vendors ever will.

I founded CodeCraftMD for physician-led AI documentation and billing systems, and OpenMFM.org for open-source maternal-fetal medicine education.

About Chukwuma Onyeije, MD, FACOG →

Official Site

DoctorsWhoCode.blog

Specialty

MFM / High-Risk OB

Credential

MD, FACOG

Project

CodeCraftMD

Project

OpenMFM.org