UCLA DomStat

About Us

Faculty

 

David Elashoff

Director
Professor, Division of General Internal Medicine and Health Services Research
Professor, Department of Biostatistics
Professor, Department of Computational Medicine

Dr. Elashoff is a Professor of Medicine, Biostatistics and Computational Medicine at UCLA and Director of the Department of Medicine Statistics Core. He serves as Leader for the Biostatistics, Epidemiology and Research Design (BERD) program for the UCLA CTSI.


Li-Jung Liang

Professor, Division of General Internal Medicine and Health Services Research
Senior Statistician, Semel Institute Center for Community Health

Dr. Liang received her Ph.D. in Biostatistics from UCLA in 2005. Prior to her doctoral studies, she worked in the pharmaceutical and biotechnology industries for over 10 years. Her statistical research interests are hierarchical (multi-level) modeling, longitudinal data analysis, Bayesian methods, Markov models, and Markov chain Monte Carlo computation.


Chi-hong Tseng

Professor, Division of General Internal Medicine and Health Services Research

Dr. Tseng received his Ph.D. in Biostatistics from UCLA in 2004. His research interests include design of clinical trials, survival analysis, multiple comparisons problems, and statistical genetics.


Ning Li

Associate Professor, Division of General Internal Medicine and Health Services Research
Associate Professor, Department of Computational Medicine

Dr. Li received her Ph.D. in 2005. Her research interests are in the areas of longitudinal analysis, missing data in longitudinal studies, and joint modeling of longitudinal and time-to-event data. She has extensive statistical consulting and collaborative experience with investigators in many areas of biomedical research.


Myung-Shin Sim

Associate Professor, Division of General Internal Medicine and Health Services Research

Dr. Sim is an Associate Professor in the Division of General Internal Medicine and Health Services Research. Her research interests include survival analysis, longitudinal analysis in various cancers and infectious diseases, and developing mathematical vaccine models. She has extensive experience with multicenter clinical trials.


Xiaoyan Wang

Associate Professor, Division of General Internal Medicine and Health Services Research

Dr. Wang is an Associate Professor in the Department of Medicine Statistics Core at UCLA. Her research focuses on the general area of survival analysis, the design and analysis of biomarker studies, which usually involve high-throughput array-based and sequencing technology for transcriptomic, microRNA, proteomic, epigenomic and microbial data.


Jin Zhou

Associate Professor, Division of General Internal Medicine and Health Services Research

Dr. Zhou is an Associate Professor in the Department of Medicine at UCLA. Her research concerns the role of genetic, epigenetic and environmental factors in the development of complex diseases, including cancers. It involves both methodological development in modeling biological data, and hands-on data analysis.


Nicholas Jackson

Assistant Professor, Division of General Internal Medicine and Health Services Research

Dr. Jackson's research interests are in the intersection of statistics, behavior, and public health. He holds a Master's of Public Health in Biostatistics and a PhD in Quantitative Psychology. His statistical interests are in longitudinal design and related methodology; specifically accelerated longitudinal designs and their estimation using mixed models.


Staff

 

Sitaram Vangala

Associate Director
Principal Statistician

Sitaram (Ram) Vangala is a Principal Statistician and Associate Director of DOMStat. His research interests include biomedical and social scientific applications of Bayesian methods, causal inference in observational studies, and statistical learning with high-dimensional data.


Jenny Brook

Principal Statistician

Jenny Brook has been working as a Principal Statistician at UCLA since 2000. Over the years she has taken an integral part in helping others with their research, both hands on and as part of theoretical support. Jenny has worked on various projects, offering statistical expertise to both faculty and graduate students.


Jeffrey Gornbein

Principal Statistician
Professor, Department of Computational Medicine

Dr. Gornbein is a Professor in the Department of Computational Medicine (formerly Biomathematics) and is a Principal Statistician in the Statistics Core of the Department of Medicine at UCLA. He is also a lecturer in the UCLA School of Public Health and at Cedars-Sinai Medical Center.


Tristan Grogan

Principal Statistician

Tristan's primary area of statistical research is in methodology for the design and analysis of biomarker discovery and validation studies. He has presented research at several conferences including the EDRN, Joint Statistical Meetings, UCLA Department of Medicine Research Day, and the SCASA Applied Statistics Workshop.


Mei Leng

Principal Statistician

With 20+ years of statistical research work at UCLA and a strong medical background, Mei is experienced with many different studies and models. Mei is interested in health improving related research, and has worked with public use survey data such as NHANES, HHANES, American Census (as well as APS), ADD Health, CMS, HRS, MEPS, CHIS, and more.


Daniela Markovic

Principal Statistician

Daniela Markovic is a Principal Statistician at the UCLA Department of Medicine Statistics Core. She is experienced in helping UCLA biomedical researchers with statistical data analysis, manuscript writing, database management and grant proposals, and she has worked in this area since 2006. Her statistical interests include analysis of survey data, prediction modeling, survival analysis, correlated data analysis and clinical trials among others.


Holly Wilhalme

Principal Statistician

Holly Wilhalme is a Principal Statistician at DOMStat. She has experience in a wide range of applications spanning health research, environmental health and Phase I through III clinical trials. She has provided statistical consulting and analysis support to faculty within many departments across the School of Medicine including General Internal Medicine, Neurology/Alzheimer’s Center, Public Health, Dentistry, Nephrology, Hematology/Oncology, Gastroenterology, Obstetrics and Gynecology, Cardiology and Geriatrics.


Lucia Chen

Senior Statistician

Lucia has worked at DOMStat since 2017. She has collaborated extensively with investigators from the fields of nephrology, hepatology, immunogenetics, pediatrics, and public health. Some of her statistical areas of expertise include survival analysis, longitudinal analysis, and missing data imputation methods.


Rong Guo

Senior Statistician

Rong is a senior statistician at DOMStat with over 20 years of biomedical research experience. She has worked with investigators to address their methodological and statistical analysis needs. Rong is interested in healthcare research involving national data, such as the VA Database, and data from NHANES, NMACS and NHAMCS. She also has a special interest in survey design and data analysis.


Alexandra Klomhaus

Senior Statistician

Dr. Klomhaus is a senior statistician at DOMStat. She received her Ph.D. in Biostatistics from UCLA in 2021. Her research interests include methods for evaluating longitudinal electronic health records data that is complicated by common challenges often present in observational medical data, like irregular visit times, sparse outcomes, and outcome-dependent time spent in treatment.


Tahmineh Romero

Senior Statistician

Tahmineh joined DOMStat in 2017; her educational background is in Mathematical Statistics and Biostatistics, and her research interests are in cancer genomics, high-dimensional data and statistical machine learning. She also has a special interest in Pediatric field studies and growth curve modeling.


Dennis Ruenger

Senior Statistician

After completing his doctorate in cognitive psychology at Humboldt-Universität zu Berlin, Germany, Dr. Ruenger held postdoctoral appointments at UC Santa Barbara and USC where he investigated the cognitive and neural mechanisms of habit formation.


Xinkai Zhou

Senior Statistician

Xinkai Zhou is a senior statistician at the Department of Medicine Statistics Core. He has collaborated with investigators from the Department of Medicine, Stein Eye Institute, Jonsson Comprehensive Cancer Center, Cedars-Sinai Medical Center and other institutions on a variety of clinical trials and biomedical research projects.


Eric Demer

Statistician

Dr. Demer is a Statistician in the UCLA Statistics Core. His interests include quantitative aspects of study design, and finding Bayesian priors with a reduced dimension of improperness to allow comparisons of models in situations where, for standard improper priors, the posteriors would depend on the order of updates.


Yash Motwani

Statistician

Yash graduated from The University of Texas at Austin with a B.S. in Public Health. Since starting at DOMStat, he has assisted principal investigators in their research by building REDCap databases, transforming and loading requested datasets into these databases, and aiding in analysis and manuscript writing.


Claudia Perez

Statistician

Claudia Perez is a statistician at the UCLA Department of Medicine Statistics Core who assists investigators with data analysis, data manipulation, and database management. Claudia has experience working in programming languages such as R, SAS, and SQL and also creating online surveys and databases using RedCap (Research Electronic Data CAPture).


Estefania Ramires-Sanchez

Statistician

Estefania Ramires-Sanchez has been a member of DOMStat since 2017, and has collaborated on dozens of projects including projects in Pulmonary Medicine, Pediatrics, Ophthalmology, Education, and the Diversity Program Consortium (DPC).


Arseniy Vasilyev

Statistician

Arseniy has been a statistician at the UCLA Department of Medicine Statistics Core since 2017. He is primarily interested in public health policy, economic and social impact, and large database development. He has worked on a wide range of public health projects, including Medicaid/Medicare expansion, medical claims and EHR, as well as a number of clinical trials for GIM and Department of Anesthesiology.


Victoria Adebambo

Research Associate

Victoria graduated from the University of Waterloo in Math and Statistics. She joined DOMStat as a research associate in 2020 where she assists statisticians and principal investigators with data management and analysis.


Rebecca Chung

Research Associate

Rebecca graduated from UCLA with a B.S. in Statistics. As a research associate at DOMStat, Rebecca assists statisticians and principal investigators with data management, cleaning, and analysis, primarily with programming languages such as R and STATA.


Sylvia Pan

Research Associate

Sylvia Pan graduated from UCLA in Psychology and Statistics. She assists statisticians and principal investigators with data management and analysis. She is also interested in data visualization and web development.


Diana Pham

Research Associate

Diana Pham is a research associate at the UCLA Department of Medicine Statistics Core. She assists principal investigators with their research through database management, data manipulation, data analysis, creating reports, and building REDCap databases.


Martin Lai

Systems Manager

Martin Lai is the systems manager for the UCLA CTSI implementation of REDCap (Research Electronic Data Capture). Martin manages the day-to-day operations of REDCap, and provides REDCap consultations and programming support to study teams.


Astrid Villanueva

Administrative Assistant

Astrid Villanueva is the Administrative Assistant for DOMStat. She graduated from UCLA with a bachelor's degree in Psychobiology and a minor in Spanish in 2017, and joined DOMStat in 2018. Astrid carries out administrative support to ensure efficient operation of the office.


Scarlet Karimian

Fund Manager

Scarlet Karimian is the fund manager for DOMStat. She has a bachelor's degree from UCLA in sociology with minors in political science and film & television. Scarlet manages the financial portfolios for the DOMStat faculty and staff, as well as the DOMStat sales and service account.