Population Health DataShare Staff

DataShare Analytics Team

The DataShare analytics team leverages observational data for research. They offer study design, programming expertise, and statistical support for Duke researchers, and delivery of research-ready health care data.

Melissa Greiner
DataShare Analytics Team Manager/Principal Biostatistician

Ms. Greiner manages the PopHealth DataShare™ analytics team and is a principal biostatistician with over 14 years experience in academic research  and 9 years in software engineering in the telecommunications industry. She serves as a mentor to biostatisticians, programmers, students, fellows and a consultant to faculty investigators.

Her expertise lies in biostatistics, observational and comparative effectiveness research, SAS statistical programming, data science, and data management, using large-scale health insurance claims, electronic health records, clinical registries and cohort study data. For the past 11 years at Duke, Ms. Greiner directed or conducted analytics on numerous clinical, healthcare services and health policy research studies in heart failure, cardiovascular disease, peripheral arterial disease, interventional cardiology, atrial fibrillation, diabetes, stroke, geriatrics, urology, palliative care, orthopedics, cancer and family medicine. She has been the lead or second author on over 50 research publications including articles in JAMA, Circulation and Archives of Internal Medicine.

Ms. Greiner received a BS in Mathematical Sciences at Nicholls State University and earned her MS in Mathematical Sciences at Clemson University.

Chris Bush
Biostatistician II

Mr. Bush conducts data management for the PopHealth DataShare's extensive Oracle database repository of Medicare claims and electronic health records (EHR). In addition to creating complex analytic datasets and providing SAS programming consultations for other analysts, he conducts full statistical analyses using cohort study data, Medicare claims and EHR on studies including opioid addiction, cardiology risk factors and completeness of EHR data for research. His area of expertise is in SAS statistical programming and data management. 

Mr. Bush earned his BS in community health from East Tennessee University and an MPH in epidemiology methods and applications from the University of Michigan School Of Public Health.  

Kelley Jones
Biostatistician III

Dr. Jones is a Biostatistician III in the Department of Population Health Sciences, where she serves as the analyst for several of the department’s research studies. Prior to joining this team, she worked as a research scientist, leading analyses for various violence-prevention intervention programs. Her expertise is in data and analysis for behavioral, cluster-randomized controlled trials, particularly with vulnerable populations. Dr. Jones obtained a BS in biological sciences and psychology from the University of Pittsburgh, and an MPH and PhD in epidemiology from the University of Pittsburgh Graduate School of Public Health. 

Zhen Li, PhD
Biostatistician II

Dr. Li is a Biostatistician in the PopHealth DataShare analytics team. She is interested in using big data analytics to improve the quality of health care for both patients and healthcare providers. Prior to joining Duke, she worked at the Institute of Trauma Recovery, Department of Anesthesiology at UNC-CH, where she conducted statistical analysis on multidimensional data generated from large-scale longitudinal studies of trauma survivors. She enjoys building statistical modeling including structural equation modeling, multilevel modeling, etc. 

Dr. Li received her BS in biomedical engineering from the Capital University of Medical Sciences in Beijing, China, and her PhD in electrical and computer engineering from Duke University. She also holds a Master of Statistics from NCSU. Her research has been presented at conferences, including the Society for Biological Psychiatry Meeting, the Society of Thermal Medicine Meeting, the World Conference on Interventional Oncology, and the American Association of Physicists in Medicine. 

Steven Lippman
Biostatistician III

Dr. Lippmann is a biostatistician/epidemiologist in the PopHealth DataShare™ analytics team with expertise in Medicare claims data analysis and a range of analytical and technical skills including complex data management and advanced SAS statistical programming. He has applied his analytical training to disparate research areas, including cardiovascular disease, medical devices, informatics, emergency department surveillance, injury epidemiology, and environmental health impact analysis.

Dr. Lippman taught epidemiological methods courses as a graduate teaching assistant for two core epidemiology courses at UNC, is currently a small group instructor at the Duke University Physician’s Assistant program, and trains new analysts on accessing and analyzing data within the DataShare SAS/UNIX environment. Prior to joining Duke, he worked as a UNC graduate research assistant in the Carolina Center for Health Informatics and the UNC Injury Prevention Research Center. Before UNC, he was a research assistant at Harvard School of Public Health’s Injury Control Research Center. 

Dr. Lippman is first author on three manuscripts and four conference abstracts, and co-author on twelve additional manuscripts and numerous conference abstracts, including articles in Circulation, Mayo Clinic Proceedings, JACC Heart Failure, Chest, and Environmental Research. He received his BS in Biology and Society from Cornell University and his PhD in Epidemiology from the Gillings School of Global Public Health at the University of North Carolina.

Chris Mankoff
Analyst Programmer II

Mr. Mankoff conducts data management for DataShare’s extensive Oracle repository of Medicare, Medicaid and Marketscan commercial claims and electronic health records (EHR). In addition to creating complex analytic datasets and providing SAS programming consultations for other analysts, he conducts safety surveillance and quality assurance queries for the Sentinel Medicare DataMart in partnership with the FDA. 

Mr. Mankoff transferred to the DPHS from the Duke Cancer Institute in October 2018.  While at DCI, he administered clinical trials applications and programmed in SAS and Python. Chris received his MA in Geography from UNC Chapel Hill in 2000. He has twenty years of experience in programming, data management, and analytics.  

Michelle Smerek
DataShare Programming & Informatics Manager

Ms. Smerek is an informaticist on the PopHealth analytics team. She has over 20 years of experience working in clinical research in both academic and non-profit research settings. Her expertise is in data management, data quality, workflow support and automation, project management, and the development and use of terminological data standards. She has a passion for finding ways to leverage existing data (EHR/Claims/Registries) for research purposes. Ms. Smerek has developed and implemented guidance for the National Patient-Centered Clinical Research Network (PCORnet) Common Data Model and is the data steward for the Population Health DataShare—coordinating the development and implementation of data governance policies, procedures and infrastructure.

Ms. Smerek received a BS in General Science from the University of Oregon and a Graduate Certificate in Biomedical and Health Informatics from Oregon Health & Science University.

Lauren Wilson
Senior Biostatistician

Dr. Wilson has over eight years of experience in population health study design and the statistical analysis of health-related datasets focusing on healthcare claims data, survey data, and biomarkers that include gene expression and epigenetic data. Much of her pre- and post-doctoral work was in the areas of cancer and infectious disease.

Prior to joining the Department of Population Health Sciences, she completed a pre-doctoral training fellowship in the National Cancer Institute’s Division of Cancer Epidemiology and Genetics where she conducted epidemiological and statistical analyses related to oncogenic human papillomavirus and cervical cancer. She also concluded an Epidemiology post-doctoral training fellowship at the National Institute of Environmental Health Sciences where she led statistical studies using a range of data to identify lifestyle and environmental risk factors for breast cancer development. Since joining the DPHS in March of 2017, Dr. Wilson has conducted several Medicare based statistical analyses related to breast cancer genetic testing, targeted cancer therapy, atrial fibrillation outcomes and trends in outpatient heart failure management.

Dr. Wilson is trained in SAS, Stata, R, and SQL. She received an MSc and a PhD in Epidemiology from the Johns Hopkins University Bloomberg School of Public Health.

Lindsay Zepel
Biostatistician III

Ms. Zepel is a biostatistician on the PopHealth DataShare analytics team. Her expertise is in the statistical analysis, data management, and SAS programming of health-related datasets—including electronic health records, patient reported data, cohort studies, and clinical registries. Most recently, she worked as a statistical programmer where she created analytical datasets from disparate data sources, performed data validation, and programmed data displays in support of clinical drug trials. Prior to that, she was a biostatistician at a health outcomes research organization doing statistical analyses studying treatment variation and identifying practices associated with the best outcomes for hemodialysis and chronic kidney disease patients. Ms. Zepel has co-authored numerous abstracts presented at international and national scientific meetings and co-authored manuscripts accepted for publication in the American Journal of Kidney Diseases.

Ms. Zepel received her BS in Statistics and Decision Science from Carnegie Mellon University and her MS in Biostatistics from the University of Michigan.

DataShare Operations Team

The DataShare operations team supports and manages projects for observational research studies. They consult with faculty, staff, trainees, and students on data acquisition and budget development.

Any Clark, PhD
Clinical Research Coordinator

Amy is a Clinical Research Coordinator in the Department of Population Health Sciences. She currently coordinates a multifaceted research program investigating racial disparities in cancer survival.

Previously, she managed a large portfolio of clinical research projects in Duke’s Department of Ophthalmology, including multiple gene therapy and device trials. Amy has an extensive background in research, having spent 17 years running a basic science lab focusing on the cellular mechanisms of kidney autoimmune diseases. Her expertise is in project, staff, and resource management, navigating IRB and IBC applications, and building relationships that create a strong team environment. Amy received her BS in Biology from the College of William and Mary, and her PhD in Cell and Molecular Biology from Duke University. 

Jennifer Grant
Clinical Research Coordinator

Jennifer Grant is a Clinical Research Coordinator in the Department of Population Health Sciences, where she provides research project management support for studies using administrative claims data . She has extensive experience as a project manager, and previously worked at a non-profit where she facilitated the collection, management, and analysis of data in order to inform and facilitate local and state-level policy change. Additionally, Jennifer has experience assisting with proposal development and submission, working on federally-funded large-scale projects, as well as facilitating IRB submissions.

Jennifer received her BA in psychology, and her MPH from the University of North Carolina at Chapel Hill within the Department of Health Behavior.

Chantelle Hardy
Operations Team Manager/Senior Research Program Leader

Ms. Hardy has thirteen years of experience in academic research, including over seven years providing operational and financial management support for research studies utilizing clinical registry data, electronic health records, and administrative claims data. She served as a project leader on the AHRQ-funded Centers for Education & Research on Therapeutics (CERTs), and the linkage of NHLBI cohort data to Medicare claims data. She has also co-authored 16 publications and created and guided the development of training materials, work instructions, and governance systems to acquire and maintain the security of CMS data.

Ms. Hardy currently works in the Department of Population Health Sciences where she manages a team of operations staff providing research project management support for studies in health services research, health disparities research, and health outcomes research. She also serves as a consultant on CMS data acquisition and budget development to faculty, staff, students, and clinical trainees internal and external to Duke University.  

Ms. Hardy received her BAs in psychology and religious studies, and her MPH from the University of North Carolina at Chapel Hill.

Rebecca Kameny
Senior Regulatory Coordinator

Dr. Kameny brings a strong research background and a collaborative spirit to her role as Regulatory Coordinator in the Department of Population Health Sciences. She serves as a departmental resource for the development of IRB submissions, data use agreements, research data security plans, and other regulatory documents, and ensures compliance with institutional policies. She also develops and maintains standard operating procedures for the department’s data assets and is responsible for overseeing training of key personnel on project-specific requirements.

Previously, Dr. Kameny was a research analyst on the Research Data Security team located in Duke’s Social Sciences Research Institute. She has also served as director of the editorial team for a small R&D company and a data curator for an open source data repository. Additional expertise includes academic editing, interviewing, survey development, qualitative analysis, and web content strategy. Rebecca earned her BA in linguistics at UCLA and her PhD in developmental psychology at the City University of New York Graduate Center.

Research Program Leader

Dr. Pritchard is a Research Project Leader within the Department of Population Health Sciences, where she oversees research project operations and finances, and facilitates the acquisition of data assets. Her projects include research using electronic medical record and Medicare data. She was previously a Clinical Research Coordinator in the Department of Pediatrics, Hematology and Oncology Division, at the University of Virginia. There she managed the operational, regulatory, data, and financial activities of several clinical trials and an expanded access study. She has experience providing operational and financial management support to industry-sponsored, federally-funded, and investigator-initiated research studies, and is knowledgeable about conducting research in pediatric populations.

Dr. Pritchard has expertise in technical writing, experimental design, data interpretation, budget development, and project oversight. She earned her PhD from the University of Virginia in cancer and molecular biology.