About the Authors

Monika M. Wahi, MPH, CPH, is a well-published data scientist with more than 20 years of

experience, and president of the public health informatics and education firm DethWench Professional

Services (DPS) (www.dethwench.com). She is the author of Mastering SAS Programming for Data

Warehousing and has coauthored over 35 peer-reviewed scientific articles. After obtaining her master

of public health degree in epidemiology from the University of Minnesota School of Public Health, she

has served many roles at the intersection of study design, biostatistics, informatics, and research in the

public and private sectors, including at Hennepin County Department of Corrections in Minneapolis,

the Byrd Alzheimer’s Institute in Tampa, and the U.S. Army. After founding DPS, she worked as an

adjunct lecturer at Laboure College in the Boston area for several years, teaching about the U.S.

healthcare system and biostatistics in their bachelor of nursing program. At DPS, she helps

organizations upgrade their analytics pipelines to take advantage of new research approaches,

including open source. She also coaches professionals moving into data science from healthcare and

other fields on research methods, applied statistics, data governance, informatics, and management.

John C. Pezzullo, PhD, spent more than half a century working in the physical, biological, and social

sciences. For more than 25 years, he led a dual life at Rhode Island Hospital as an information

technology programmer/analyst (and later director) while also providing statistical and other technical

support to biological and clinical researchers at the hospital. He then joined the faculty at Georgetown

University as informatics director of the National Institute of Child Health and Human Development’s

Perinatology Research Branch. He created the StatPages website (https://statpages.info), which

provides online statistical calculating capability and other statistics-related resources.