Macey Henderson, JD, PhD

Principal Investigator/Project Director

Macey Henderson, JD, PhD is an Assistant Professor in the Department of Surgery, Division of Transplantation at the Johns Hopkins School of Medicine and is a Core Faculty member in the Epidemiology Research Group in Organ Transplantation. She holds a joint appointment in the Johns Hopkins University School of Nursing in the Department of Acute and Chronic Care. Dr. Henderson actively develops policy and guidance related to donation and transplantation in the U.S. after her election to the Board of Directors for the Organ Procurement and Transplantation Network/United Network for Organ Sharing (OPTN/UNOS). She has been a member of the UNOS/OPTN Living Donor Committee since 2013. Dr. Henderson is the Co-Chair of the Live Donor Follow-up Task force at The Johns Hopkins Hospital Comprehensive Transplant Center, and the Director of Kidney Space, a new Facebook integrated health-app for kidney patients, transplant recipients, and living donors.


In addition to her National Institute of Diabetes and Digestive and Kidney Diseases career development funding for mKidney, Dr. Henderson is a recipient of the Dean Rothman Early Career Development Award for Surgical Research (Johns Hopkins University). She also has received a Johns Hopkins Center for AIDS Research faculty development grant to lead the development and implementation of informed consent processes for HIV+ living donor candidates under new HIV Organ Policy Equity Act research protocols. Dr. Henderson is the key donation professional on a Health Services and Resources Administration (HRSA) grant to study the implementation of the Live Donor Champion program (PI: Dorry Segev) and site Co-PI for the HRSA/Scientific Registry of Transplant Recipients Living Donor Collective pilot registry. She represents UNOS as a member of the HRSA/American Society of Transplant Surgeons/American Society of Transplantation's Living Donor Coalition, and serves on various workgroups for professional organizations in transplantation.

Dr. Henderson received her JD from the Indiana University Maurer School of Law in Bloomington, Indiana and a PhD in Health Policy and Management from the Richard M. Fairbanks School of Public Health in Indianapolis. She donated a kidney to her cousin Marc at the University of Michigan in 2009.

Alvin Thomas, MSPH

Mobile Health Lead 

Alvin Thomas is a data analyst with an interest in interesting questions and serves as the mobile health lead for the Epidemiology Research Group in Organ Transplantation. He received his MSPH in International Health from Johns Hopkins Bloomberg School of Public Health. His research interests include living donor health and big data in organ transplantation. Alvin is a PhD student in Epidemiology at the University of North Carolina. 

Madeleine Waldram

Research Program Coordinator 

Madeleine is a research coordinator for the Epidemiology Research Group in Organ Transplantation. She coordinates our multi-center follow-up study of living kidney donors, and her research focuses on improving follow-up care and outcomes among living donors. Madeleine graduated from Johns Hopkins University with a degree in Public Health Studies and plans to pursue a career in medicine and public health research.