Dr. Keri N Althoff, PhD, MPH, is an Associate Professor of Epidemiology in the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health in Baltimore, Maryland. She has a joint appointment in the Department of Oncology at the Johns Hopkins University School of Medicine. She is one of two Principal Investigators for the North American AIDS Cohort Collaboration on Research and Design (NA-ACCORD) of the International Epidemiologic Databases to Evaluate AIDS (IeDEA) project. The NA-ACCORD is a collaboration of >20 longitudinal HIV cohorts (both clinical and interval), which rely on electronic medical record data and data collected via research study visits for analyses from most of the cohorts. Dr. Althoff’s content areas of expertise are the physical and mental comorbidities and multimorbidity in adults aging with HIV, as well as indicators benchmarking progress toward the goals of the Ending the HIV Epidemic initiative in the United States. She has strong interests in epidemiologic methods that address challenges in the use of cohort collaboration study design. Dr. Althoff has >80 peer-reviewed publications and teaches the third term of the three-term course series on epidemiologic methods in research. Dr. Althoff is also serving as the Johns Hopkins University Provost’s Fellow for Research Communication.