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Ritoban Kundu, PhD, is a Postdoctoral Researcher at the Center for Causal Inference at the University of Pennsylvania. Originally from Kolkata, India, he received his PhD in Biostatistics from the […]

Shalini Ramachandra is a Biostatistics PhD candidate mentored by Douglas Schaubel and Eric Tchetgen Tchetgen. Her dissertation work involves novel survival analysis, causal inference, and clustered data methods. Research Areas […]

Yuqing Lei, MS, is a PhD candidate in Biostatistics at the University of Pennsylvania, advised by Dr. Yong Chen. She is a member of the PennCIL. Her research focuses on […]

Sagnik Bhadury is a Research Associate in the Department of Biostatistics, Epidemiology and Informatics at the University of Pennsylvania’s Perelman School of Medicine. He completed his postdoctoral training in Computational […]

Researchers from DBEI examine a new approach to aligning large language models with diverse human preferences, with potential applications for AI in medicine and clinical decision-making.

Jing Wang is currently working as a Postdoctoral Researcher at the Department of Biostatistics, Epidemiology, and Informatics at the University of Pennsylvania. He obtained his PhD at the University of […]

Dr. Jinbo Chen, Professor of Biostatistics at DBEI, led a four-session workshop on statistical methods for risk modeling and model evaluation, sharing in-house methodologies developed to ensure health algorithms remain accurate, fair, and sustainable.

I am a postdoctoral researcher in the Department of Biostatistics, Epidemiology and Informatics at the University of Pennsylvania, advised by Prof. Mingyao Li. My work sits at the intersection of […]

DBEI's Bonnie Ky and Jinbo Chen have received an NHLBI R01 grant to develop better tools for predicting and reducing cardiovascular risk in men with prostate cancer.

Xiang Li, PhD, is a Postdoctoral Researcher in the Division of Biostatistics within the Department of Biostatistics, Epidemiology and Informatics at the University of Pennsylvania. He works under the joint […]

Tingxuan Han is a Postdoctoral Researcher in the Department of Biostatistics, Epidemiology, and Informatics at the University of Pennsylvania, working with Dr. Yong Chen. She obtained her PhD in Statistics […]

Shuang Sun is a Postdoctoral Researcher in the Department of Biostatistics, Epidemiology, and Informatics at the University of Pennsylvania, working with Dr. Wensheng Guo. Her research interests include functional data […]

Xinran Miao is a postdoctoral researcher at the University of Pennsylvania, where she works with Alex Levis and Nandita Mitra. She received Ph.D. in Statistics from the University of Wisconsin-Madison […]

Daniel Xu, PhD, is a Postdoctoral Researcher in Biostatistics and Epidemiology in the Department of Biostatistics, Epidemiology, and Informatics at the University of Pennsylvania’s Perelman School of Medicine. He is […]

Yue Wu is a Postdoctoral Researcher in the Department of Biostatistics, Epidemiology and Informatics at the University of Pennsylvania’s Perelman School of Medicine. Her research focuses on statistical machine learning […]

Dr. Wolf is a postdoctoral researcher in the Center for Causal Inference working with Drs. Ashkan Ertefaie and Nandita Mitra. His current research focuses on developing statistical methods for just-in-time […]

Jie Hu is a Research Associate at the Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania. His research focuses on developing statistical and machine learning […]

Qi Long, PhD, has been granted a dual primary appointment in Informatics, in addition to his existing primary appointment in Biostatistics, strengthening cross-divisional collaboration within DBEI.

Sophia Zhang is a biostatistics student currently pursuing a Master of Science (MS) degree in the Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania.

Bradley Bi is a biostatistics student currently pursuing a Master of Science (MS) degree in the Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania.

Ruofan Wang is a PhD student in Biostatistics at the University of Pennsylvania. She earned her MS in Biostatistics from Penn and previously completed a BSc in Statistics, graduating Summa […]

Hong Xiong is a PhD Student in the Division of Biostatistics, Department of Biostatistics, Epidemiology, and Informatics at the University of Pennsylvania Perelman School of Medicine.

Dr. Weidong Ma is a postdoctoral fellow and researcher in the Division of Biostatistics at the University of Pennsylvania’s Perelman School of Medicine. His focus areas are nonparametric and semiparametric […]

Dr. Sae-Hwan Park is Associate Director of Research at Penn Medicine and a member of the Statistical Center for Translational Research in Medicine (SC-TRM). His work sits at the intersection […]

Antonio Olivas-Martinez, PhD, MD, is a postdoctoral researcher in Biostatistics and Epidemiology within the Department of Biostatistics, Epidemiology, and Informatics at the University of Pennsylvania’s Perelman School of Medicine. He […]

Yong Chen, PhD, has been granted a dual primary appointment in Informatics, in addition to his existing primary appointment in Biostatistics, strengthening cross-divisional collaboration within DBEI.

Nicolas Escobar Velasquez is a biostatistician whose research focuses on statistical methods for autism spectrum disorder (ASD) diagnosis. More broadly, his work addresses methodological challenges in child and adolescent health […]

Ke Sun is a Postdoctoral Researcher in the Department of Biostatistics, Epidemiology and Informatics (DBEI) at the University of Pennsylvania, working under the mentorship of Professors Qi Long and Weijie […]

Dr. Bingyu Zhang is a Postdoctoral Researcher in the Biostatistics Division at the University of Pennsylvania. She has extensive experience in clinical evidence generation and evidence synthesis using real-world data, […]

Dr. Haitao Chu is an Adjunct Professor of Biostatistics at the University of Pennsylvania. He has over 20 years of leadership experience in the academic institutions and pharmaceutical industry. His […]

Yiwen Lu is an Instructor at the Department of Biostatistics, Epidemiology and Informatics at the Perelman School of Medicine, University of Pennsylvania. Her research focuses on developing AI and causal […]

Dr. Ian Barnett is an Adjunct Assistant Professor of Biostatistics at the University of Pennsylvania where he leads an NIH-funded research program of PhD students and postdoctoral researchers that focuses […]

In this Faculty Spotlight video, Russell Taki Shinohara, PhD, shares insights into his research on multiple sclerosis, medical imaging, and the statistical methods used to better understand disease progression and advance precision medicine.

Mingyao Li, PhD, has received the prestigious IMS Medallion Award and been selected as an IMS Medallion Lecturer for the 2028 Joint Statistical Meetings in Philadelphia.

Dr. Yijiao Zhang is a Postdoctoral Researcher in the Department of Biostatistics, Epidemiology, and Informatics at the University of Pennsylvania, working with Dr. Hongzhe Li. She obtained her PhD in […]

Kyle Stanley, PhD, is a postdoctoral researcher in the Department of Biostatistics, Epidemiology, and Informatics whose work centers on developing novel statistical methods to analyze wearable device data using functional data analysis, distributional modeling, and machine learning. In this Q&A, he reflects on what inspired his research journey and what he values most about the collaborative DBEI community.

Dr. Sharon Xie helped lead a study linking air pollution to worsened Alzheimer’s disease, published in JAMA Neurology and named a top 20 Penn breakthrough of 2025.

Congratulations to Mingyao Li on receiving the 2026 Michael P. Nusbaum Graduate Student Mentoring Award, recognizing her outstanding dedication to mentoring and supporting graduate students.

Congratulations to Dr. Yong Chen on his RECOVER-EHR study being named a 2026 Top 10 Clinical Research Achievement.

Jeffrey S. Morris, PhD, analyzes the U.S. vaccine safety monitoring system and suggests improvements in a new APPC white paper.

Congratulations to Drs. Jason D. Christie and James P. Guevara on their election as Fellows of the College of Physicians of Philadelphia, recognizing their impactful contributions to medicine and public health.

Jagadeesh Puvvula, PharmD, PhD, MPH, is a trainee in the Department of Biostatistics, Epidemiology, and Informatics, whose work explores how early-life environmental exposures impact human health. In this Q&A, he shares insights into his research, the real-world relevance of environmental health studies, and the value he finds in mentorship and interdisciplinary collaboration.

Nandita Mitra, PhD, was honored with two 2025 Penn Medicine Awards of Excellence for her outstanding contributions to research and education.

Dr. Jinghao Sun is a Research Associate at the Center for Causal Inference at the University of Pennsylvania, working with Professors Eric J. Tchetgen Tchetgen and Douglas E. Schaubel. In […]

Dr. Qi Long and collaborators have received NIH/NIBIB funding to advance neurosymbolic AI for smarter, more trustworthy healthcare.

A new study in The Lancet Infectious Diseases shows that COVID-19 reinfection in children significantly increases the risk of long COVID and other serious health complications.

Penn faculty Dr. Yong Chen and Dr. David Wolk have received a landmark NIH U24 award to lead national efforts to improve data quality and advance Alzheimer’s research.

Dr. Yi Lian is a Postdoctoral Research Fellow in the Biostatistics Division at the University of Pennsylvania. His methodological research spans high-dimensional statistical learning, federated learning, missing-data methods, and integrative […]

Dr. Kwangmoon Park is a Postdoctoral Researcher at the University of Pennsylvania, where he works with Professor Hongzhe Li. He received his Ph.D. in Statistics from the University of Wisconsin-Madison […]

Dr. Mingyao Li co-authored a study demonstrating iSCALE, a method that maps large human tissues at molecular and spatial resolution, uncovering disease features previously invisible.

Dr. Xiaotian Hou is a Postdoctoral Researcher in the Department of Biostatistics, Epidemiology, and Informatics at the University of Pennsylvania. He obtained his Ph.D. in Statistics from Rutgers University, advised […]

Before joining Penn, Dr. Kyle Stanley received his Ph.D. in Statistics from Penn State University and his B.A. in Mathematics at Bowdoin College. He also worked for two years as […]

Dr. Maxwell Salvatore is a Postdoctoral Fellow working with Dr. Yong Chen in the Department of Biostatistics, Epidemiology, and Informatics. Dr. Salvatore is interested in identifying principled methods for analyzing […]

Dr. Mary Putt and her team contributed to new research exploring how sleep drive impacts seizure severity and identifies a potential way to reduce them.

Join us in congratulating Dr. Nandita Mitra on her appointment to Penn’s Academic Planning and Budget Committee, where she will help guide the University’s academic and financial planning.

Dr. Alexander Levis is an Assistant Professor of Biostatistics in the Department of Biostatistics, Epidemiology and Informatics. He was formerly a postdoctoral researcher in the Statistics & Data Science department […]

Dr. Jeffrey Morris was featured in The Atlantic and New York Magazine’s Intelligencer, where he discussed major flaws in widely cited vaccine studies and the risks of bias in study design.

My research focuses on developing robust and efficient methodologies that minimize reliance on restrictive modeling assumptions. I am particularly interested in creating methods that integrate machine learning to ensure data-adaptive […]

Flawed study designs in nutrition research may be leading to misleading advice about healthy eating. DBEI’s Mary E. Putt, ScD, and co-authors warn that many popular dietary trials are too short and poorly structured to give reliable results-putting future nutrition guidelines at risk.

Jinbo Chen, PhD elected 2024 American Association for the Advancement of Science Fellowof this post here.

Nandita Mitra, PhD has been awarded the Lindback Foundation Award for Distinguished Teaching.

Dr. Eric Tchetgen Tchetgen has been awarded the inaugural David Cox Medal for Statistics, which honors mid-career researchers for outstanding contributions to the field.

In a new study, Yong Chen, PhD and colleagues at Penn Medicine, used AI and latent transfer learning to analyze long-COVID data, identifying four patient sub-populations with distinct care needs, improving hospital resource allocation and tailoring treatment for diverse patient populations.

Mingyao Li, PhD and her Penn Medicine colleagues developed an AI-powered tool called MISO (Multi-modal Spatial Omics) that can detect cell-level characteristics of cancer by looking at data from extremely small pieces of tissue—some as small as the width of five human hairs.

Amid rising polarization and misinformation, Jeffrey Morris, PhD, of Penn Medicine tackles vaccine skepticism with evidence-based insights. In an interview with Undark, he advocates respectful dialogue that considers social and political dynamics.

In Annals of Internal Medicine, Nicholas Seewald, PhD, introduces a framework for target trial emulation, enabling researchers to evaluate health policies with the rigor of clinical trials in nonexperimental studies.

Contact Blockley Hall (Room 633)423 Guardian DrivePhiladelphia, PA 19104 Office: 215-573-4922Fax: 215-573-4865 vallejo@pennmedicine.upenn.edu

Contact Blockley Hall (Room 633)423 Guardian DrivePhiladelphia, PA 19104 Office: 215-573-7393 mfox@pennmedicine.upenn.edu

Alisa Stephens Shields, PhD serves as an Associate Professor in the Biostatistics division of the Department of Biostatistics, Epidemiology and Informatics, and is recognized for her collaboration and impactful leadership in the realms of health, statistical education, and inclusion in the field.

Alisa Stephens Shields, PhD, Associate Professor of Biostatistics, was selected by the Harvard T.H. Chan School of Public Health to receive the 2024 Myrto Lefkopoulou Distinguished Lectureship.

Before joining Harvard University as an Assistant Professor of Biostatistics, Rui Duan, PhD, completed her PhD in Biostatistics at the University of Pennsylvania.

Edward Kennedy, PhD is a Penn alum through and through—prior to completing his PhD in Biostatistics in 2016, he earned his BA in Mathematics (2007) and MA in Statistics (2014) from the University.

Dr. Zheng is an assistant professor of Biostatistics. His research focuses on the development of novel statistical methods to address important scientific problems, and the application of sound statistical approaches […]

Dr. Xiao’s methodological research centers around statistical genetics and genomics, where she develops statistical methods and computational tools for RNA-seq and single cell RNA-seq (scRNA-seq) data analysis. Particularly, she has […]

Dr. Xie’s methodological research focuses primarily on the analysis of complex survey data, and she has a special interest in small-area estimation. She has served as the lead biostatistician for […]

Dr. Xie’s current research goals are twofold. First, she continues to develop new statistical methods for survival analysis, missing data, measurement error problems, high dimensional data, biomarker evaluations, and longitudinal […]

Dr. Yang’s methodological research includes causal inference, functional data analysis and dynamic risk prediction. He is also interested in collaborative research in chronic kidney disease, cardiovascular disease and pharmacoepidemiology.

Dr. Zee’s research focuses on developing and applying methods for observational and survival data analysis and identifying novel biomarkers of kidney disease progression. She collaborates on clinical research projects in […]

Dr. Shinohara’s methodological research centers on the assessment of structural and functional changes in the brain throughout the lifespan and in neurological, psychiatric, and developmental disorders. He is interested in […]

Dr. Shou’s methodological research focuses mainly on developing novel functional data analysis and machine learning models for multimodal and longitudinal imaging measures, wearable computing sensor data, and assessing biomarker reproducibility. […]

Dr. Shults is currently the principal investigator of the NIH-funded project “Longitudinal Analysis for Diverse Populations” (R01CA096885). Her work on this project involves quasi-least squares (QLS) and is based on […]

Dr. Stephens Shields is an Associate Professor of Biostatistics. Her research is focused on extensions and innovative applications of causal inference approaches to enhance the design and analysis of clinical […]

Dr. Weijie Su is a Professor in the Department of Statistics and Data Science (The Wharton School) and, by courtesy, in the Department of Computer and Information Science and the […]

As University Professor, Dr. Tchetgen Tchetgen holds joint primary appointments in the Department of Statistics and Data Science at The Wharton School and in the Department of Biostatistics, Epidemiology and […]

Dr. Schaubel’s methodologic research interests mostly involve survival analysis and the analysis of recurrent event data. His more recent methodology has been at the intersection of causal inference and survival […]

Dr. Enrique F. Schisterman is Perelman Professor and Chair of the Department of Biostatistics, Epidemiology and Informatics at the Perelman School of Medicine. He is an elected member of the […]

Nicholas J. Seewald, PhD is an Assistant Professor in the Department of Biostatistics, Epidemiology and Informatics in the Perelman School of Medicine at the University of Pennsylvania. Previously, Dr. Seewald […]

Dr. Putt is a translational scientist, whose goal is to both bring state-of-the-art statistical methodologies to the design and analysis of biomedical research studies, and to adapt/develop methodologies to meet […]

Dr. Li joined the biostatistics faculty in 2006 after receiving her PhD in Biostatistics from the University of Michigan in 2005. She is also a faculty member of the Genomics […]

Dr. Li’s methodology research interests include clinical trial design, survival analysis, longitudinal data analysis, and statistical methods for health services research. Her earlier research focused on survival analysis, specifically statistical […]

Yun Li, PhD is Associate Professor of Biostatistics in the Perelman School of Medicine at University of Pennsylvania’s Department of Biostatistics, Epidemiology and Informatics (DBEI), and a faculty member at […]

Dr. Linn’s methodological research addresses barriers to incorporating complex, high-dimensional data into models for personalized medicine and biomarker development using neuroimaging data. As a co-investigator, she provides biostatistical leadership on […]

Dr. Localio’s current methodological work centers on computing risk difference and relative risk estimates in complex designs such as occur in multicenter studies and meta-analyses, as well as on issues […]

Dr. Long’s research program marries innovative data science, informatics, and ML/AI research with impactful biomedical research. His lab has focused on developing robust statistical and ML/AI methods and models for […]

Devan V. Mehrotra, PhD, is Vice President, Biostatistics at Merck Research Laboratories (MRL), the R&D Division of Merck & Co., Inc. He leads a team of approximately 90 biostatisticians and […]