J. S. Choi, MD is a
physician of internal medicine and
Indiana University School of Medicine
and the Regenstrief Institute.
Education and Work
University of Utah
NLM T15 Biomedical Informatics Postdoctoral Research Fellowship
Outpatient Care Center
Indiana University & Regenstrief Institute
Clinical Informatics Fellowship
Kettering Medical Center
Internal Medicine Residency
Saint Louis University College of Medicine
Doctor of Medicine
University of Arizona
Bachelor of Science
Major in Physiology • Minors in Computer Science and Chemistry.
Summa cum laude. GPA 3.98.
When clinicians and patients with
complex multimorbidity meet, clinicians must recall or
retrieve a myriad of clinical information to give these patients the
informed care they deserve. My research aims to study how the
design of information technologies affect
clinician cognition, memory, attention, and decision
making – in particular,
information-rich patient-data displays and
long-term professional-education platforms.
Continuing professional education and clinical decision support:
commonalities, differences, and potential synergies
Associations between psychosocial needs, carbohydrate-counting
behavior, and app satisfaction
2023 [accepted for publication]
Coauthored with Darren Ma, Julian A. Wolfson, Jean F. Wyman, Terrence J.
Adam, and Helen N. Fu. Accepted for publication by
CIN: Computers, Informatics, Nursing.
A randomized crossover trial of 92 adults with type 1 or 2 diabetes
requiring insulin therapy tested two top-rated diabetes apps,
mySugr and OnTrack. Survey responses on demographics,
psychosocial needs (perceived competence, autonomy, and connectivity),
carbohydrate-counting frequency, and app satisfaction were modeled using
mixed effect linear-regressions to test associations.
Coauthored with Titus Schleyer and Stephen Downs.
Continuing professional education (CPE) and clinical decision support
(CDS) emerged from separate fields, yet they overlap in multiple ways.
This tutorial examines the nuanced and heretofore little-examined
relationship between CPE and CDS in several domains, providing historical
context and exploring potential future directions.
Aiming HealthDart at a new target
Conducting research and prototyping for a new version of HealthDart – a
successfully deployed application that summarizes HIE information – for a
new setting, cardiology based on the observed workflows of IU Health
Creation of a chronic wound care registry to improve outcomes
Leading the creation of an academic registry of more than 150,000
Indiana patients with chronic wounds and writing a journal article using
the registry to examine the epidemiology of diabetes mellitus,
infection, amputation, and death in patients with chronic wounds.
Marion County Public Health Department weekly COVID-19 dashboard
Programmed a dashboard that automatically downloads COVID-19
nursing-facility data from the CDC National Healthcare Safety Network
and displays graphical trends for Marion County epidemiology personnel.
Eskenazi Health order-set maintenance policy
Led the creation of a new data-driven process to identify clinician
stakeholders of a computerized order-entry system’s order sets and to
regularly check in with stakeholders regarding their order sets.
Computer science & engineering
Technical Committee 39 (TC39)
Ecma International’s TC39 is the official
standards body that maintains the core specifications of
language proposals have been accepted for consideration by TC39; selected
ones are listed below.
Authored and presented proposal and specification for a new standard
in 2022 and is to be implemented by Mozilla Firefox, Safari, Google
Chrome, Microsoft Edge, Node.js, and other web browsers and engines in the
future. [Array.fromAsync on GitHub]
Coauthored with Tab Atkins. Proposal and specification for new
by Ecma TC39 at Stage 2. [Pipe-operator proposal on GitHub]
Clojure computer-programming library used by other developers to parse
text into data structures using grammars that the programmer creates.
FnParse was published on GitHub.
Skills and Interests
UNIX command-line administration, programming, and data processing.
(ES), Clojure (i.e., Lisp), R, Java, HTML5, SVG, and
other XML, and CSS..
Hobbies and interests
- Technology standards
Independent contributor to discussions of several standards bodies
including the WHATWG (HTML5), the W3C (CSS, Web Annotations), and the
Student Member of the
Unicode Consortium, 2016–2017.
ECMA Technical Committee 39,
- Public health and education
- Evidence- and science-based medicine
Measuring and improving medical outcomes through educational aids and
- Clinical decision making, usability, design
Relationships between clinical decision making, cognitive psychology,
usability, and user-interface design
- Testing and improving medical computer interfaces
- Computer science and engineering
- Programming-language design
- Text parsing
- Relational data modeling
- Data-interchange formats
- Digital typography
- Violin, piano, and music composition
- Interactive multimedia