Leadership
Manisha Desai, PhD
Director, Quantitative Sciences Unit
Kim and Ping Li Professor of Medicine and of Biomedical Data Science
Associate Dean of Research
Section Chief of Biostatistics
Dr. Desai is Kim and Ping Li Professor of Medicine (Section of Biostatistics, Quantitative Sciences Unit) and of Biomedical Data Science, Professor of Epidemiology and Population Health (by courtesy), and Associate Dean of Research at Stanford. She serves as the founding Faculty Director of the Stanford Quantitative Sciences Unit (QSU), a data science unit comprised of faculty and staff who practice data science to address biomedical questions relevant for public health.
Current Research Interests: Pediatrics; Diabetes; Artificial Intelligence
Mary Boulos, MPP
Executive Director, Quantitative Sciences Unit
Mary Boulos joined the QSU in 2015 to lead the strategic planning, business development and financial operations of the QSU. She brings to the QSU over 12 years of organizational management experience in both academic medical center and research institution settings. She holds a Master of Public Policy from the University of Chicago.
Haley Hedlin, PhD
Associate Director, Clinical Trials Program, Senior Biostatistician
Dr. Hedlin joined the QSU in 2013 after completing her PhD in Biostatistics from Johns Hopkins in 2011. In her work, she has contributed to medicine and public health research on women's health, cardiovascular and pulmonary diseases, and data safety monitoring. She enjoys mentoring clinicians, researchers, and students who are interested in learning statistics.
Current Research Interests: Data and Safety Monitoring; Clinical Trials and Data Coordinating Center Implementation; Real World Data; Clustered and Longitudinal Data Analysis for Repeated Measures
Yann Le Guen, PhD
Assistant Director, Computational Biology Program
Dr. Le Guen joined the QSU in 2022 after he received his PhD in 2018 at the University Paris-Saclay, and joined the Greicius lab where he was contributing to improve the understanding of the genetics causes of neurodegenerative diseases including Alzheimer’s and Parkinson’s diseases.
Current Research Interests: Bulk and Single-Cell RNA Sequencing (Transcriptomics); Proteomics; Neurology; Aging
Yingjie (Isabel) Weng, MHS
Assistant Director, Learning Health Systems Program, Senior Biostatistician
Isabel joined the QSU in 2017 after working at Stanford Surgery Policy Improvement Research & Education center to develop prediction models for surgery-related outcomes using data from the Electronic Health Records. She has been actively collaborating with clinical researchers and local public health agencies to deliver best statistical practices that facilitate the integration of knowledge from real-world evidence in clinical and public health researches.
Current Research Interests: Quasi-experimental Design and Causal Inference; Pragmatic Clinical Trials; Real-world Evidence Analysis Using Electronic Health Records, Registry and Claimed-Based Databases; Artificial Intelligence in Learning Health Systems