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Division of Biostatistics & Epidemiology

The Division of Biostatistics and Epidemiology maintains a focus on the development of analytic methods for the design, conduct, and analysis of research studies in the basic, educational, and clinical sciences. The novel application of statistical methods to data collected by investigators within Paul L. Foster School of Medicine is implemented for the best translation of findings to knowledge in the care of patients, the enhancement of education and the advancement of science. The researchers in the division have extensive experience in health sciences research with specific expertise in the design of experiments, the conduct and analysis of longitudinal and cohort studies, and the interface of epidemiology, biostatistics and information science. The division developed and manages the Biostatistics and Epidemiology Consulting Lab for collaboration with all faculty members at the School.

Division members also teach School curriculum and offer many short courses and workshops for other universities across the country, as well as at the Infectious Disease Institute in Uganda. Current and ongoing research includes collaborations with scientists within the Texas Tech University Health Sciences Center and other institutions through NIH-funded research projects studying problems such as vaginal microbicide development, neurologic and cardiologic degeneration due to retroviruses and their treatment, and barriers in cervical cancer screening in Hispanic populations.


Patrick Tarwater, PhD, Professor and Chief

Melchor Ortiz, PhD, Professor

Alok Dwivedi, PhD, Assistant Professor

Jayanta Gupta, MD, PhD, Assistant Professor

Research Staff

Flor Puentes, MPH, Director/Research Associate

Indika Mallawaarachchi, MS, Research Associate

Luis A. Alvarado , MS, Research Associate

Kevin J. Liu, MS, Research Associate

Christopher A. Dodoo, MS, Research Associate

Administrative Staff

Virginia Pacheco, Unit Coordinator

Biostatistics & Epidemiology Consulting Lab (BECL)

The Biostatistics and Epidemiology Consulting Lab (BECL), situated within the Division of Biostatistics and Epidemiology, provides technical assistance and statistical services for clinical and population health research projects.

General Information