Ryan Greyson, MD, MHS, MA

Ryan Greyson, MD, MHS, MA
Senior Fellow

University of Pennsylvania

Public Health Interests

Community Engagement, Homelessness, Social Determinants of Health



Current Public-Health Related Activities

S. Ryan Greysen, MD, MHS, MA has been the Section Chief of Hospital Medicine in Penn's Division of General Internal Medicine since August 2016. A native Texan, Dr. Greysen received both his BA and MD with Honors from the University of Texas. He completed residency training in Internal Medicine (Primary Care) at George Washington University, graduate study in History and Sociology of Science at Penn (MA ‘03), and post-doctoral training at Yale (MHS) as a Robert Wood Johnson Clinical Scholar. Before coming to Penn, he was an Assistant Professor at the University of California, San Francisco (UCSF) in the Division of Hospital Medicine. Dr. Greysen’s quality, safety, and research efforts focus on improving hospital and transition care for vulnerable patients, particularly older adults with multiple morbidities. He launched the first ACE program at UCSF Medical Center and obtained extramural funding from the NIH National Institute on Aging as well as significant intramural funding to study patient-centered stressors such as poor functional status, mobility, sleep, and engagement in care (see www.arches-cohort.org). He is also keenly interested in the potential for personalized mobile technologies to help alleviate these stressors and increase patient and caregiver engagement in acute and recovery care. Dr. Greysen’s research has been published in leading journals including JAMA, JAMA Internal Medicine, Annals of Internal Medicine, Journal of General Internal Medicine, and Journal of Hospital Medicine and has been covered by the New York Times, Washington Post, and National Public Radio. He is the first recipient of the Junior Investigator Award from the Society of Hospital Medicine in 2015 as well as the first hospitalist to be awarded the Outstanding Junior Investigator Award by the Society of General Internal Medicine and the American Geriatrics Society, both in 2016. As Section Chief for Hospital Medicine at Penn, Dr. Greysen leads the development of a scalable model for academic hospital medicine across all sites within Penn Medicine that will engage all faculty in clinical, educational, quality, safety, and research excellence. The Section currently maintains a core faculty of 35 hospitalists who provide care at HUP, Penn Presbyterian Medical Center, Philadelphia VAMC, and Good Sheppard Penn Partners and who play critical roles in quality, safety, education in the Perelman School of Medicine and University of Pennsylvania Health System.

Select Publications:

Greysen SR, Patel MS. Bedrest Is Toxic - Why Mobility Matters in the Hospital.Ann Intern Med. 2018 Jul 17;169(2):HO2-HO3.doi: 10.7326/M18-1427.

Greysen SR, Harrison JD, Rareshide C, et al. A randomized controlled trial to improve engagement of hospitalized patients with their patient portal. J Am Med Inform Assoc. J Am Med Inform Assoc. 2018 Oct 19. doi: 10.1093/jamia/ocy125.

Greysen SR, Harrison JD, Kripalani S, Vasilevskis E, Auerbach AD. Understanding patient-centred readmission factors: a multi-site, mixed-methods study. BMJ Quality & Safety. 2017 Jan;26(1):33-41.

Greysen SR, Stijacic-Cenzer I, Auerbach, AD, Covinsky KE. Functional Impairment and Readmissions in Medicare Seniors. JAMA Intern Med. 2015 Apr 1;175(4):559-65.

Greysen SR, Horwitz LI, Covinsky KE, et al. Does social isolation predict hospitalization and mortality among HIV+ and uninfected older veterans? J Am Geriatr Soc. 2013 Sep;61(9):1456-63.

Greysen SR, Allen R, Lucas GI, Wang EA, Rosenthal MS. Understanding transitions in care from hospital to homeless shelter: a community-based approach. J Gen Intern Med. 2012 Nov;27(11):1484-91