Current Members

Manisha Desai, Ph.D.
Professor of Medicine and of Biomedical Data Science,
Section Chief for Biostatistics,
Director of QSU

Dr. Desai is Professor of Medicine and of Biomedical Data Science. She joined Stanford in 2009 after spending 9 years on the faculty of the Department of Biostatistics at Columbia University.

Mary Boulos, M.P.P
Executive Director, QSU

Mary Joined QSU in September 2015.

Themistocles Assimes, MD, Ph.D. FRCPc
Consultant to the QSU

Dr. Themistocles (Tim) Assimes, MD PhD, is an Assistant Professor of Medicine at Stanford University in the Division of Cardiovascular Medicine. 

Andrew Gentles, Ph.D.
Assistant Professor

Dr. Gentles is Assistant Professor of Medicine. He joined QSU in December 2015. 

Summer Han, Ph.D.
Assistant Professor

Dr. Han is Assistant Professor of Neurosurgery and Medicine. She joined QSU in November 2015. 

Zihuai He, Ph.D
Assistant Professor 

Dr. Zihuai He joined QSU in November 2018. He is Assistant Professor of Neurology and of Medicine.  

Maya Mathur, Ph.D

Maya Mathur is an Instructor at the Stanford University Quantitative Sciences Unit.  

Haley Hedlin, Ph.D.
Senior Biostatistician

Associate Director, Clinical Trials Program

Dr. Hedlin joined the QSU in 2013 after completing a postdoctoral position with the Five Colleges Consortium. She received her PhD in Biostatistics from Johns Hopkins in 2011.

Derek Boothroyd, Ph.D.
Senior Biostatistician

Dr. Boothroyd joined the QSU in October 2014. He received his PhD in Statistics from Stanford University in 2001 where his doctoral research was applied to modeling progression of kidney function in diabetic nephropathy. 

Vandana Sundaram, M.P.H
Senior Biostatistician

Vandana joined the QSU in July 2014. Prior to this she was a project manager and senior analyst at Stanford Health Policy where she managed several research projects and conducted analyses of large datasets.

Kristen Cunanan, Ph.D.
Senior Biostatistician

Dr. Cunanan joined the QSU in July 2018. Prior to QSU, she was a Research Scholar at Memorial Sloan Kettering Cancer Center. Kristen received her PhD in Biostatistics from University of Minnesota in 2015.

Kristopher Kapphahn, M.S.
Senior Biostatistician

Kris joined the QSU in May 2012 after completing his M.S. in Biostatistics from the University of Minnesota. In his graduate work, he studied the handling of missing data for social networking data through multiple imputation techniques.

Victoria Ding, M.S.

Victoria joined the QSU in June 2013.  She completed her M.S. in Biostatistics at the University of Washington, where she engaged in collaborative research pertaining to mental health and gerontology.

FeiFei Qin, M.P.H.

FeiFei joined the QSU in February 2014 after completing her M.P.H. in Epidemiology and Biostatistics from UC Berkeley.

Jaden Yang, M.S. 

Jaden joined the QSU in June 2013. She completed her M.S. in Biostatistics at the University of Michigan, Ann Arbor, where she studied statistical genetics with Michael Boehnke.


Natasha Purington, M.S.

Natasha joined the QSU in August 2015. She completed her M.S. in Biostatistics at UC Los Angeles while working on health care evaluation projects for the UCLA Center for Health Policy Research. 

Vidhya Balasubramanian, M.S.

Vidhya joined QSU in July, 2016. She received her MS in Biostatistics from UCLA in 2009.

Justin Lee, M.P.H.

Justin joined the QSU in September 2016 after receiving his MPH degree from the University of Miami.

Yingjie (Isabel) Weng, M.H.S.

Isabel joined the QSU in October 2017. She completed her M.H.S in Epidemiology from Johns Hopkins University in 2014. 

Santosh Gummidipundi, M.S.

Santosh joined the QSU in July 2018. 

Rebecca Gardner, M.S.

Rebecca joined the QSU in January 2019. She completed her MS in Statistics at Brigham Young University in 2016, where she collaborated with cardiologists to develop a new approach to diagnose rheumatic heart disease for her Master's thesis. 

Ariadna Garcia, M.S.
Sofeware Developer

Ariadna joined the QSU in January 2016. She completed her M.S. in Management Information Systems at the University of Illinois at Chicago. 

Albee Ling
PhD Candidate

Albee joined QSU in January 2017. She is currently a Ph.D. candidate in the Biomedical Informatics program at Stanford.

Ni Deng
Administrative Associate 

Ni joined QSU in September 2015. Prior to this, she was working at Whitehead Institute for Biomedical Research in Cambridge, MA.