Dr. Crews is Professor of Medicine in the Division of Nephrology at Johns Hopkins University School of Medicine, with appointments in the School of Nursing; the Welch Center for Prevention, Epidemiology and Clinical Research; the Center on Aging and Health; and the Center for Health Equity, where she is Associate Director for Research Development. Her epidemiological and clinical work on kidney disease and hypertension has informed clinical guidelines and has had a major influence on the study of social drivers of disparities in chronic kidney disease. Contributing to the reversal of a trend toward starting patients on dialysis when they still had significant residual kidney function, Dr. Crews’ studies addressing the optimal level of kidney function at which dialysis should be initiated have been cited in US guidelines