Benjamin F. Crabtree, PhD is a medical anthropologist and is Distinguished Professor in the Department of Family Medicine and Community Health Research Division, Rutgers Robert Wood Johnson Medical School, which he joined in 1999.  Dr. Crabtree has been a full-time primary care/health services researcher in family medicine for more than 30 years and has contributed to more than 220 journal articles and numerous book chapters. His writings on research methods cover topics ranging from time series analysis and log-linear models to in-depth interviews, case study research, and qualitative analysis strategies.  Dr. Crabtree is known for his expertise in mixed-methods research and qualitative research designs, as well as developing collaborative research teams.  He is co-editor on two books, Doing Qualitative Research and Exploring Collaborative Research in Primary Care. Dr. Crabtree has been principal investigator on major grants from AHRQ, NHLBI, NCI, and the Robert Wood Johnson Foundation.  These projects have focused on the area of healthcare delivery system redesign and organizational change.  Dr. Crabtree has written extensively on issues in organizational change and the challenges of integrating innovations into real-world practices.  He served as a member of the SQUIRE committee that put together standards for quality improvement and on the NIH OBSSR panel that created the NIH Best Practices for Mixed Methods Research in the Health Sciences.