C. Holly Andrilla, MS, Biostatistician and Research Scientist, is the Centers' statistical consultant for all projects, the lead analyst for many different health workforce-related projects, and has directed many surveys conducted by the Centers. Ms. Andrilla has been an analyst and biostatistical consultant for the Center since 1993. She is an expert in managing large datasets; designing, performing and interpreting complex statistical analyses; and conducting survey research. Ms. Andrilla has had major analytic roles in workforce studies of physicians, physician assistants, dentists, dental hygienists, registered nurses, advanced practice nurses, and other groups. She has been involved in recent studies of treatment options for rural prostate cancer patients and family medicine training in rural areas. She has directed surveys of health care professionals and facilities, including a national survey of federally funded health centers, a national survey of family practice residencies, a survey of dentists in 5 states, and surveys of Washington State's dental hygienists and nurse practitioners. She has worked as a biostatistician in the Departments of Pharmacy, Health Services and Family Medicine at the University since 1990. Ms. Andrilla attended the University of Washington where she earned both her BS (1988) and MS (1990) in statistics and biostatistics respectively.