AskDigi is an AI assistant platform I designed and built from scratch for Stanford Medicine Children’s Health. I developed both the frontend and backend with Nuxt and TypeScript, bringing together a conversational interface, document and data workflows, and integrations with workplace systems. The result is a full-featured AI experience built around how people actually work—pairing the breadth and polish users expect from leading AI chat products with tools tailored to the organization.

I built BiliRecs to help clinicians manage jaundice (hyperbilirubinemia) in newborns at 35 weeks or more. It implements the AAP's 2022 revised guideline. The aim is fewer severe cases and less bilirubin-related brain injury, without adding parental anxiety, cutting into breastfeeding, or treating babies who don't need it. Lindsay Stevens was the clinical lead. Its predecessor was a web-based tool from 2009 (Longhurst et al.).

I designed and built GluVue to make continuous-glucose-monitor data easy to read in real time. Once the FDA allowed remote CGM data into the EHR in 2015, there was no reason for providers to wait for a clinic visit — they can review a patient's glucose wherever the patient happens to be. Rajiv B. Kumar, MD and Kathryn Cefalu, RN, CDCES advised on the clinical side. It's now publicly available to other providers.

My favorite thing about it: within a day of someone posting it to r/diabetes in 2015, a Tandem pump user had written his own bridge to push t:connect data into it — "a quick and dirty little thing," he called it, "no warranties expressed or implied." We emailed later; he'd kept going and grown it to support something like a hundred devices. That's the whole point of making a clinical tool public.

HipTrender follows two measurements from hip X-rays — acetabular index and acetabular depth ratio — over time and plots them against the Novais 2018 percentile curves. From that trend it recommends next steps for developmental dysplasia of the hip. It covers children up to 14, since the acetabular index can't be measured once the growth plate closes. It also runs integrated with the EMR. Built with Steven Frick, MD, chief of pediatric orthopaedic surgery.

The part nobody sees: I spent close to a year on the equations from that paper, and my curves would not match the published ones. I assumed I was doing something wrong. Eventually we reached the mathematician who'd written the equations, and it turned out the ones in the paper were wrong. He sent the corrected versions and everything snapped into place. He said he'd issue a correction and acknowledge me in it. As far as I can tell, he never did.

Hypertension in children is missed most of the time — a 2007 study found it recorded in only 26% of cases. HypeRisk flags elevated blood pressure, stage 1, and stage 2 hypertension. It takes three or more readings plus age and height, works out the height percentile from CDC charts, then the blood-pressure percentile, and applies the AAP 2017 guideline. Built with Scott Sutherland, MD and Abanti Chaudhuri, MD of pediatric nephrology.

Premie BiliRecs handles newborn jaundice for premature infants between 27w0d and 34w6d post-menstrual age who are more than 48 hours old. It turns the 2012 expert recommendations from Maisels et al. into concrete phototherapy and exchange-transfusion thresholds. Evidence in this age range is thin, and the tool says so plainly. I built it with Jonathan Palma, Yassar Arain, and Vinod Bhutani.

Everyone calls it PBR. Naturally I made a logo for that. We obviously couldn't use it.

SMaRT Transfusion guides decisions about red-blood-cell transfusion in critically ill children. It's built on the TAXI (Transfusion and Anemia eXpertise Initiative) consensus — an international systematic review with graded recommendations, filled in with expert opinion where the evidence ran out. The main reference is Valentine et al., PCCM 2018. Supplements cover bleeding, heart disease, ECMO, and oncology.