Ryan Greysen

Ryan Greysen, MD, MHS, MA

ryan.greysen@pennmedicine.upenn.edu

Associate Professor, General Internal Medicine, Perelman School of Medicine
Chief of Hospital Medicine, Medicine, Perelman School of Medicine

S. Ryan Greysen, MD, MHS, MA is the Chief of the Section of Hospital Medicine, Executive Director of the Center for Evidence-based Practice (CEP), and Associate Professor in the Division of General Internal Medicine at the University of Pennsylvania.

As Chief of the Section of Hospital Medicine, Dr. Greysen leads the development of academic hospital medicine to promote excellence in education, quality, safety, and research. The Section currently maintains a core faculty of over 50 hospitalists who provide care across HUP, PPMC, and GSPP. As Executive Director of CEP, he oversees the Center’s mission to perform rigorous assessment and synthesis of evidence to support Penn Medicine as a Learning Healthcare System and lead the adaptation of evidence-based recommendations to address clinical, operational, and scientific challenges across system entities.

Dr. Greysen’s individual research efforts focus on improving hospital and transition care for vulnerable patients, particularly older adults. He is particularly interested in patient-centered stressors such as poor functional status, mobility, and sleep during and after hospitalization. His research has been published in JAMA, JAMA Internal Medicine, Annals of Internal Medicine, and Journal of Hospital Medicine, and has been covered by the New York Times, Washington Post, and National Public Radio.

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