Joan L. Warren


Joan Warren, PhD, has been an Epidemiologist in the Healthcare Assessment Research Branch of the Healthcare Delivery Research Program since 1998. Dr. Warren received her BS in Nursing from Georgetown University and has worked in a variety of clinical settings. She received her PhD in Health Policy from the University of Maryland Baltimore in 1989. In that same year, she joined the Epidemiology Branch in the Office of Research at the Centers for Medicare and Medicaid Services (CMS). During her eight years at CMS, she worked extensively with Medicare claims, learning how to use these data for a range of health services research projects. Upon coming to NCI, she assumed responsibility for managing the SEER-Medicare data, a file that links Medicare eligible persons in the SEER data with their Medicare claims, a position held until the Fall 2015.

Dr. Warren's research has focused on the use of secondary data, such as the SEER-Medicare files, to assess patterns, outcomes, and costs of care. She has also worked extensively with researchers from government and academic settings to promote standardization of measures and methods using secondary data. She has served as an advisor to numerous U.S. and international groups interested in secondary data and data linkages. Dr. Warren has published numerous journal articles related to cancer health services research or epidemiology. She serves as a reviewer for clinical and health services research journals. In 2002, she was the guest editor for a Medical Care supplement, “Use of SEER-Medicare Data for Cancer-Related Health Services Research”.