Xiao Wu

Assistant Professor of Biostatistics

Columbia University


Xiao Wu is an Assistant Professor of Biostatistics at Columbia University. His research interests lie in developing statistical and causal inference methods to address methodological needs in climate and health research. The key goal of his research is to provide scientific evidence on the health impacts of environmental factors in an age of rapidly changing climate. Contact here if you are interested in using data science to build a healthier, environmentally sustainable world!

He completed his Ph.D. in Biostatistics at Harvard University, where he was advised by Dr. Francesca Dominici and Dr. Danielle Braun. His dissertation focuses on developing causal inference methods to handle error-prone, continuous, and time-series exposures. He was a Data Science Postdoctoral Fellow at Stanford University, where he worked with Dr. Trevor Hastie in the Department of Statistics during 2021-2022. He is also working on collaborative projects to design Bayesian clinical trials, meta-analyses, and real-world evidence studies.

He has been named to Forbes 30 Under 30 list. His research has been published in prestigious scientific venues such as Science Advances, New England Journal of Medicine, the Lancet Planetary Health, and the Journal of the American Statistical Association, and it has attracted the attention of international journalism, including at the New York Times, the Guardian, National Geographic, USA Today, and Scientific American.


  • Causal Inference
  • Nonparametric Statistics
  • Measurement Error
  • Bayesian Biostatistics
  • Environmental Epidemiology


  • Ph.D. in Biostatistics, 2021

    Harvard University

  • M.S. in Biostatistics, 2017

    Harvard T.H. Chan School of Public Health

  • LL.B. in Laws, B.S. in Mathematics, 2015

    Peking University


Barry R. and Irene Tilenius Bloom Fellowship

2020 ISEE Annual Conference Travel Award

2020 ASA Biopharmaceutical Section Scholarship Award

2020 IMS Hannan Graduate Student Travel Award

Summer Institute in Statistics for Big Data Scholarship

1st Prize of the National Mathematics Contest



Research Scientist Intern

Facebook Inc

Jun 2020 – Aug 2020 Menlo Park, CA

Data Scientist Intern

Google LLC

May 2019 – Aug 2019 Sunnyvale, CA

Biostatistician Intern

Sanofi Genzyme

Feb 2019 – Apr 2019 Cambridge, MA

Biostatistician Intern

Sanofi Genzyme

Jun 2017 – Aug 2017 Cambridge, MA

Research Associate

Harvard Business School

Jul 2016 – Mar 2017 Boston, MA


  • 722 W 168th St, New York, NY 10032