Chong H. Kim is an Associate Director at Gilead Sciences, Inc. His research interests include real-world evidence/observational research, economic modeling, clinical outcome assessment, predictive modeling, and spatial statistics. Currently, he is leading HEOR research in support of the liver & inflammation assets at Gilead.


  • HEOR
  • Observational research
  • Predictive modeling
  • Spatial statistics


  • PhD in Pharmaceutical Outcomes Research, 2020

    University of Colorado, Anschutz Medical Campus

  • MS in Biostatistics, 2020

    University of Colorado, Anschutz Medical Campus

  • MPH in Health Policy & Management, 2014

    Columnbia University






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Associate Director

Gilead Sciences

May 2022 – Present California

Responsibilities include:

  • HEOR strategy & execution for pipeline, launch, and in-line assets

Senior Manager


Sep 2021 – Present California

Responsibilities include:

  • Developing proposals for generating evidence through HEOR activities
  • Executing HEOR projects (RWE generation, CEA & BIM development, Value messaging)



Jul 2020 – Sep 2021 California

Responsibilities include:

  • Supporting evidence generation efforts through HEOR activities
  • Executing HEOR projects (RWE generation, CEA & BIM development, Value messaging)

Associate Manager


Aug 2019 – Jul 2020 California

Responsibilities include:

  • Supporting projects through analysis/modeling

PhD Researcher

Colorado University

Aug 2015 – Jul 2019 Colorado
Conducted research to understand the impact of asthma medication use on health outcomes.

Recent Posts

Matching: Propensity & Direct

Matching with {MatchIt} Many observational studies that are published try to balance the demographic and clinical characteristics that …

Bar chart with confidence intervals

Publication-ready bar chart with {ggplot2} I haven’t posted anything useful in a while so I decided to make a post that will hopefully …

Generating publication ready tables with {gtsummary} and {flextable}

Publication-ready tables with {gtsummary} and {flextable} So, I’ve been using R for a while now and I haven’t really found a good …

tidymodels vs mlr3

Comparison of packages for prediction: {tidymodels} vs. {mlr3} So I wrote a lot of prediction code for my dissertation using {caret} …

Sample Size Calculation with R Extended

Sample Size Caluclation in R… Extended! This is an extension from a post I saw here. When thinking about study designs for a trial that …

Recent & Upcoming Talks

Recent Publications

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Health resource utilization and costs of care for adult patients with relapsed or refractory mantle cell lymphoma in the United States: a retrospective claims analysis

ABSTRACTObjectives We assessed real-world healthcare resource utilization (HRU) and costs among US patients with relapsed or refractory …

Neighbors-based prediction of physical function after total knee arthroplasty

The purpose of this study was to develop and test personalized predictions for functional recovery after Total Knee Arthroplasty (TKA) …

Impact of an active hemostatic product treatment approach on bleeding-related complications and hospital costs among inpatient surgeries in the United States

Abstract Aims To examine the impact of active only (A) vs. combined passive & active (PA) hemostatic products on bleeding-related …

An economic analysis of different treatments for bleeding in patients with acquired haemophilia

Background Acquired haemophilia A (AHA), with potentially high risk of morbidity and mortality, occurs as a result of inhibitors …