Health Informatics

Meet Our Team

Sharon Ghazarian, Ph.D.

Sharon Ghazarian, Ph.D. Senior Director, Health Informatics Core

Dr. Ghazarian is an expert in complex statistical analysis, study design and research methodology for medical and social sciences. At Johns Hopkins University in Baltimore she was an assistant professor of pediatrics and director of the BEAD (Biostatistics, Epidemiology And Data Management) Core that provides research support services to strengthen interdisciplinary research focused on improving the health of children, families and communities. She has supported research initiatives at Johns Hopkins All Children’s Hospital since 2011, including currently serving as co-director of the Johns Hopkins All Children’s Hospital Clinical and Translational Research Training Track (formerly Designing Clinical Research Program). Most recently she was the senior statistician for a Centers for Disease Control and Prevention study on teen dating violence. Dr. Ghazarian is also an adjunct faculty member in the Johns Hopkins School of Nursing's Department of Community and Public Health, providing expertise and guidance for funded research on child outcomes.

The Health Informatics Core at Johns Hopkins All Children's Hospital brings innovation in using electronic health data to provide high value care-achieving the best outcomes, ensuring the highest level of patient safety and lowering the cost of care. Experts in research methods, database design and integration, epidemiology and statistics will provide meaningful data analysis that improves care and increases understanding of children's illnesses.


Luis Ahumada, Ph.D.

Luis Ahumada, Ph.D. Director, Predictive Analytics, Health Informatics


Ernest Amankwah, Ph.D.

Ernest Amankwah, Ph.D. Epidemiologist, Assistant Professor, Health Informatics


Colleen Bauza, Ph.D.

Colleen Bauza, Ph.D. Epidemiologist, Health Informatics


Terri Briseno

Terri Briseno Analytic Specialist, Health Informatics


Andrea Cortes, RN

Andrea Cortes, RN Database Registry Administrator, Health Informatics


Sharon Crabtree

Sharon Crabtree Analytic Specialist, Health Informatics


Tracy Deck, RN

Tracy Deck, RN Database Registry Administrator, Health Informatics


Catherine Groh, RN

Catherine Groh, RN Database Registry Administrator, Health Informatics




Ali Jalali, Ph.D.

Ali Jalali, Ph.D. Data Scientist, Health Informatics


Nuredin Joehar

Nuredin Joehar Manager, Health Informatics


Stephanie Lee

Stephanie Lee Database Design and Management, Health Informatics


Deborah Martino

Deborah Martino Administrative Assistant


Jaz Mateus

Jaz Mateus Biostatistician, Health Informatics


Laurel McDevitt

Laurel McDevitt Program Coordinator


Anthony Nguyen

Anthony Nguyen Biostatistician, Health Informatics




Jessica Siebold, RN

Jessica Siebold, RN Database Registry Administrator, Health Informatics


Heather Tinling, RN

Heather Tinling, RN Database Registry Administrator, Health Informatics




Jean Wilhelm, RN

Jean Wilhelm, RN Database Registry Administrator, Health Informatics


Diana Young, RN

Diana Young, RN Database Registry Administrator, Health Informatics