Currently I am an Associate Professor and Head of the Centre for Quantitative Medicine at the Duke-NUS Medical School, Singapore. Prior to joining Duke-NUS in 2013, I was an Assistant Professor at the Department of Biostatistics, Columbia University, USA, during 2009-2013.

Previously I had completed my Master of Statistics degree from the Indian Statistical Institute, Kolkata, India, and then my PhD in Statistics from the University of Michigan, Ann Arbor, USA, under the supervision of Prof. Susan A. Murphy. Here is a copy of my dissertation.

Research Interests

My primary research interest lies in developing statistical methods to facilitate evidence-based personalized medicine in a time-varying setting, specifically in the area of dynamic treatment regimes (DTRs) or adaptive treatment strategies. DTRs are decision rules about recommended treatments based on past treatment and time-varying patient characteristics. Once developed, these treatment regimes can be employed as decision support systems for clinicians, and are deemed as a key element of the chronic care model of health care. Jointly with Dr. Erica E.M. Moodie, I wrote the first textbook on this cutting-edge topic, published by Springer Inc., New York, in August 2013.

I have strong interest and expertise in modern clinical trial designs, including sequential multiple-assignment randomized trials (SMARTs), various types of adaptive design, and fractional factorial designs for multicomponent health and behavioral interventions. Currently I serve as a member of the Data and Safety Monitoring Board (DSMB) of a SMART housed at the University of California, Los Angeles.

In addition, I am also interested in bootstrap methods, statistical machine learning and data mining, and mobile health interventions.

Over the years, I have collaborated with many clinicians and public health researchers in a variety of health domains.

Here is the link to my Google Scholar citation page.