This week: the AI testing gap gets measured, clinician ships from emergency simulation to insulin titration, and six new names in the directory.
Top signal
Health systems are deploying AI faster than they can test it. A new UPMC Center for Connected Medicine and KLAS Research report finds 93% of health systems run third-party AI and 92% say they test tools before deployment, yet only 44% have a dedicated data platform or environment to actually do that testing in. The gap between claiming to test and being equipped to test is where clinician-builders earn their keep; the same week, Doximity placed over 150 physicians inside clinical AI product teams as its 2026-2027 Clinical AI Fellows. Fierce Healthcare
Shipped this week
- Run the Board: EM Sim: James Napolitano, a physician assistant in emergency medicine, shipped an iOS app that simulates the ABEM certifying oral exam with AI-driven case scenarios, real POCUS clips and 12-lead ECGs. Reddit
- Squiggler: an internist built a web-based ECG synthesiser with physiological modelling for lectures, exams and simulations; realistic rhythm strips and 12-leads, no patient data involved. Reddit
- BID Artifacts: plastic surgeon David Duque-Ropero built a progressive web app that runs the briefing, intraoperative and debriefing framework for surgical training on Claude and Gemini, entirely without an engineering team, then published it. Publication
- Titria: metabolic physician Vivek Raskar shipped a basal insulin titration app on Google Play. X
- MoodQuad: Bruce Nadro DO built an on-device tool for Apple Watch and Whoop that tracks voice drift as a mental-health signal; all data stays on the phone. X
- A nationwide study, reproducible: an emergency physician in South Korea published the MIT-licensed analysis pipeline behind a nationwide interrupted time-series study of heart attack and stroke care, complete with a citation file. GitHub
- Moya Health followed last week's App Store launch with a Product Hunt debut: doctor-founder Wiki Milczynska reports 102 organic signups in the first week. X
- And in the workshop, pharmacist Stevi Jenkins-Kelly is vibe coding practice-management software to replace the off-the-shelf CRM tools in her concierge pharmacy, and an ER nurse turned developer is building Bolus, a medication app for French nursing workflows, with Claude Code. X
Build safely
- Four lawsuits are testing where AI accountability lands; the discovery order against UnitedHealth's nH Predict is the one to watch, because whatever surfaces there becomes the template for future algorithmic-denial claims. Becker's
- AI liability, mapped by Congress's lawyers: a Congressional Research Service side-bar surveys the litigation over AI-enabled coverage denials and health chatbots across consumer protection, privacy and products liability law. Dry, free and citable. CRS
- Four pre-flight checks before an AI-built app touches PHI: vendor mapping, business associate agreements, keeping PHI out of coding prompts, and audit controls; a checklist worth running before your prototype meets a real patient record. HIPAA Insider
- Why vibe-coded apps fail HIPAA: no BAAs, no audit controls, no backup requirements met; a walkthrough written for non-developer builders. Vendor-authored (Blaze sells a no-code platform), so read it with that in mind; the failure list itself is accurate. Blaze
Tools & guides
- Obesity Trial Explorer: obesity physician Michael Albert keeps a free live index of every active phase 2 and 3 obesity drug trial; it pulls ClinicalTrials.gov at page load, with search, filters and CSV export. michaelalbertmd.com
- clinicians.dev: the clinician-builder community now publishes daily Wire briefings and a directory of healthcare MCP servers, FHIR tooling and dataset resources. A neighbouring project worth your bookmarks. clinicians.dev
Events
- Closes 21 Aug: one week left to apply for the Adeline Health x AI Hackathon (18 September, Google HQ London): prototype European healthcare AI on MedGemma, £13,000 in prizes. Adeline
- 27 Aug (online): SIIM's webinar "The Future Is Prompted: Vibe Coding for Healthcare Apps" with radiologist Ali Tejani MD is under two weeks away. SIIM
- Aug to Oct (India): Health-a-thon 2026, billed as India's first national health hackathon for doctors and technologists, from the Koita Foundation. Koita Foundation
- 3 Oct (Antwerp): Care & Code Clinical Build Day: doctors, nurses, pharmacists and physiotherapists vibe-code a working AI care tool in one day. Disclosure: this is our own event. careandcode.be
- Opens 19 Oct: applications for Cohort 11 of the NHS Clinical Entrepreneur Programme run from 19 October to 20 November, as the programme enters its tenth year. NHS CEP
New in the directory
- Marcus Baw, MB ChB (UK): GP and clinical informatician behind the SNOMED CT toolchain from Issue 1, the nationally deployed RCPCH Digital Growth Charts API and the nhs-number Python package. GitHub
- Zachary Meade, MD (USA): the Navy anaesthesiology resident behind last week's MMEasy opioid conversion calculator. mmeasy.org
- Michael Albert, MD (USA): obesity physician and builder of the trial explorer above, plus a GLP-1 prior-authorisation letter generator for his telehealth practice. michaelalbertmd.com
- Diego A. Forero, MD PhD (Colombia): neuropsychiatric-genetics professor whose R Shiny app StatSoftPMC scans PubMed Central full texts to extract which statistical software papers actually report; peer-reviewed in BMC Research Notes. GitHub
- Dylan A. Mordaunt, MBChB (New Zealand): metabolic paediatrician, clinical geneticist and health economist; his Global Medicines Atlas compares medicine approval, funding and terminology across jurisdictions. GitHub
- Giftneville Otieno Onyango, RN (Kenya): newly registered community health nurse who built three browser-based clinical tools (DKA severity grading, infusion calculators, an AI-response evaluator) solo in three days. Portfolio
- The directory now counts 35 clinician-builders with verified, evidence-graded ships. Browse it, and reply if you know someone who belongs in it. cliniciansthatcode.com
From us
- The 3am Nurse Test: our founding essay is live: why Clinicians That Code exists, told through two decades of building software for care homes. Ours, so no pretence of neutrality. cliniciansthatcode.com