Current Members

Manisha Desai, Ph.D.
Professor of Medicine and of Biomedical Data Science

Director, 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. 

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. 

Joseph Rigdon, Ph.D.
Senior Biostatistician

Dr. Rigdon joined the QSU in February 2015 after completing his PhD in Biostatistics at the University of North Carolina at Chapel Hill.   

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.

Jason Bentley, Ph.D.
Senior Biostatistician

Dr. Bentley came to the QSU in March 2017 after completing his PhD at Sydney University in Australia. 

Jin Long, Ph.D.
Senior Biostatistician

Dr. Long is a Senior Biostatistician and joined QSU in July 2017. He received his PhD in Biostatistics from Texas A&M University in 2010. 

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.

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.

Maya Mathur, M.S

Maya joined the QSU in June 2014. She completed her M.S. in Statistics at Stanford University and subsequently served as a biostatistician and researcher in the Stanford University Division of Pulmonary & Critical Care Medicine, where she conducted and analyzed epidemiological and intervention studies on infectious diseases and preventive medicine. 

Kristopher Kapphahn, M.S.

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.

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.

Eric Chow, M.S.

Eric joined the QSU in May 2017.  He completed his MSc in Decision Sciences from the London School of Economics, and another MS in Health Informatics from the Johns Hopkins School of Medicine. 

Rajani Kaimal, M.S.

Rajani joined QSU in March 2017. 

Ariadna Garcia, M.S.
Data Management Specialist

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

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. 

Albee Ling
PhD Candidate

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

Inna Sayfer, Ph.D.
Financial & Program Coordinator

Inna Sayfer is the Quantitative Sciences Unit's Program Coordinator. She joined the group in January, 2014. 

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.