Dr. Cohen's primary research interest is in the area of hypertension. She focuses on the application of epidemiologic methods to better understand physiology-driven pharmacologic effects of antihypertensive medications in complex and high-risk disease states. Dr. Cohen has led several studies that evaluate the accuracy and predictive value of out-of-office blood pressure measurement. She has also led and contributed to a number of studies that evaluate disparities in access to care and long-term cardiovascular outcomes in high-risk patients with hypertension and chronic kidney disease. 

Dr. Cohen is a faculty member in the Renal-Electrolyte and Hypertension Division in the Department of Medicine. She is currently the principal investigator of a K23 and three R01 grants funded by the National Institutes of Health and serves as Chair of the Data Coordinating Center for two multicenter, international trials (REPLACE COVID and FERMIN). She is also a coinvestigator of multiple studies that evaluate hypertension management in complex disease states, including the Home Blood Pressure in Hemodialysis (HOME-BP) Trial, the Chronic Renal Insufficiency Cohort (CRIC) Study Scientific Data Coordinating Center, and HeartShare. She currently serves as Vice Chair of the American Heart Association's Hypertension Science Committee of the Council on Hypertension, Co-Chair of the CRIC Blood Pressure Working Group, Co-Chair of the American Medical Association's Validated Device Listing, and Co-Chair of the World Hypertension League's Accuracy in Measurement of Blood Pressure Collaborative.