AHEAD Team
The AHEAD Institute faculty members within the Department of Health and Clinical Outcomes Research at the Saint Louis University School of Medicine lead the advancement of knowledge in critical areas such as health services research, health equity, palliative care, oncology, addiction medicine, vaccine hesitancy, study design, methodology and data science.
Through publications in high-impact journals and presentations at regional, national and international conferences, our faculty and staff consistently showcase their dedication to advancing health care research and disseminating impactful findings to a global audience. The combined methodological and statistical expertise of the AHEAD Institute's biostatistics core staff enables our collaborators to develop robust study designs and generate high-quality research that contributes to improved patient outcomes and health care delivery.
Leadership
Eric Armbrecht, Ph.D.
Interim department director
eric.armbrecht@slu.edu
Leslie Hinyard, Ph.D. 
Chair, professor, Department of Health and Clinical Outcomes Research 
Executive director, AHEAD Institute  
leslie.hinyard@health.slu.edu 
Affiliated Clinical Faculty
Sarah Gebauer, M.D.  
Associate professor, Department of Family and Community Medicine 
sarah.gebauer@health.slu.edu
Matthew Breeden, M.D. 
Assistant professor, Department of Family and Community Medicine 
matthew.breeden@health.slu.edu
Daniel Lin, M.D., Ph.D.
Associate professor, Department of Psychiatry and Behavioral Neuroscience
PsychEpi Lab
daniel.lin@health.slu.edu 
Martin Schoen, M.D., Ph.D.
Assistant professor, Division of Hematology and Oncology
martin.schoen@health.slu.edu 
Biostatistics Core Staff
Linda Waller
Director of business strategy, AHEAD Institute
linda.waller@health.slu.edu 
Joanne Salas
Director for applied research and analytics, AHEAD Institute 
joanne.salas@health.slu.edu
Thomas Sessa 
Director of data oversight, AHEAD Institute
thomas.sessa@slu.edu
Irene Ryan 
Data manager 
irene.ryan@health.slu.edu
Paul Hitz
Director for data management and health informatics, AHEAD Institute
paul.hitz@health.slu.edu
Timothy Chrusciel
Senior Biostatistician 
timothy.chrusciel@health.slu.edu
Jason Doherty, Ph.D.
Senior biostatistician 
jason.doherty@health.slu.edu 
Matthew Simpson
Data analyst 
matthew.simpson@health.slu.edu
Zidong (Alex) Zhang, Ph.D. 
Biostatistician 
zidong.zhang@health.slu.edu
Ruizhi (Regina) Huang
Biostatistician 
ruizhi.huang@health.slu.edu
Lizzie Ward
Program Coordinator
lizzie.ward@health.slu.edu 
