Joshua D. Uy, MDJoshua Uy, MD

Program Director
Associate Professor of Clinical Medicine

Dr. Uy was appointed program director of the Geriatric Medicine fellowship in 2017. A graduate of the medical school of the University of Michigan, he completed residency training in 2003 at the MacNeal Family Medicine Residency, an affiliate of the University of Chicago. He then practiced hospital medicine in Willingboro, New Jersey for two years before operating a solo family practice in Berwick, Pennsylvania from 2004-2008. In this setting he gained valuable experience in geriatrics in the outpatient office, nursing home and home visit settings.

In 2009 Dr. Uy completed a fellowship in geriatric medicine from University of Medicine and Dentistry-Robert Wood Johnson School (now Rutgers School of Biomedical and Health Sciences). He joined the faculty of the University of Pennsylvania Division of Geriatric Medicine in July 2009.

Dr. Uy has demonstrated outstanding performance as a clinician and teacher. From 2015-2020, he has been chosen by his physician peers as a Best Doc in Philadelphia. He is consistently highly ranked as an educator by medical students and residents from across the Perelman School of Medicine (PSOM) and several subspecialty clinical departments, serving as a dedicated preceptor in the Doctoring course and director of the “Aging” theme for the Medical Student Curriculum Committee. Dr. Uy has demonstrated consistent know-how working with inter-professional teams and assumes extra clinical duties in support of Division colleagues when needed. He is medical director of the Renaissance Healthcare & Rehabilitation Center in West Philadelphia and has assumed leadership of several aging-related programs at PSOM, the University of Pennsylvania Health System and the broader Philadelphia community.

Most recently, the Pennsylvania Department of Human Services named Dr. Uy as a medical director for a statewide academic health system-based COVID-19 readiness and response planning initiative known as the Regional Response Health Collaboration Program (RRHCP), a $175M project. Dr. Uy will lead the University of Pennsylvania Health System and Thomas Jefferson University teams, which were awarded a combined $65.8 million for efforts in the state's southeast region focused on infection prevention, universal testing, contact tracing and education, working with regulatory agencies to improve outcomes in long-term care residential facilities.

Rachel Miller headshotRachel Miller, MD

Director of Education
Associate Professor of Clinical Medicine

Dr. Rachel K. Miller, MD, MsED is an associate professor of medicine in the Division of Geriatric Medicine, Perelman School of Medicine, University of Pennsylvania. She is Director of Education for the division and focuses on transitions of care, interprofessional, and aging education. She received a 5-year Geriatric Academic Career Award (GACA) and completed a Masters in Medical Education at University of Pennsylvania. She serves on multiple national committees focused on aging and home care education. Dr. Miller spends her clinical time doing house calls for the Michael J. Crescenz Philadelphia VA Home Based Primary Care program where she practices both geriatrics and palliative care and oversees medical trainees in house-call educational experiences.

Head shot of Mark SimoneMark Simone, MD

Associate Program Director
Associate Professor of Clinical Medicine

Dr. Mark Simone joined the University of Pennsylvania Division of Geriatric Medicine in the fall of 2018. He is a graduate of the Sidney Kimmel Medical College at Thomas Jefferson University and completed his internship and residency in general internal medicine at Yale – New Haven Hospital. Dr. Simone completed a geriatric medicine fellowship at Harvard Medical School – Beth Israel Deaconess Medical Center from 2007-2009 and an additional fellowship in medical education at Mount Auburn Hospital from 2010-2011.

In the past decade, Dr. Simone has held numerous academic and clinical appointments with a demonstrated focus on and commitment toward graduate medical education. He was director of the ambulatory geriatric program at Mount Auburn Hospital and has been an instructor and assistant professor at Harvard Medical School. He was associate site director and director of geriatrics education at Brigham and Women’s Hospital for the Harvard-Beth Israel Deaconess program from 2011-2013 and co-directed the Harvard geriatrics elective from 2011-2014. In 2013 he became associate residency program director-primary care for the internal medicine residency program at Mount Auburn Hospital, where he was director of the primary care pathway and oversaw the ambulatory education of the residents. From 2016-2018 he directed resident scholarship for Mount Auburn Hospital’s internal medical residency program. He was also the Director of Quality Improvement at the Quimby Center and Division of Geriatric Medicine at Mount Auburn.

Dr. Simone’s contributions since joining the Penn Medicine team include establishment of the Geriatric Co-Management Service at Penn Presbyterian Medical Center (PPMC) and of course his role as associate program director, where he has revitalized the curriculum for the Acute Care for Elders (ACE) unit and been a valuable resource for fellows and residents as an administrator and educator. Dr. Simone’s research and clinical interests include the health challenges and needs of elderly LGBT adults and geriatric perioperative care.

Head shot of Alyson MichenerAlyson Michener, MD

Associate Program Director
Assistant Professor of Clinical Medicine

Dr. Michener learned early on during her medical education that “to teach is to learn twice.” She pursued a certificate of leadership in medical education at Case Western Reserve University’s Weatherhead School of Management during her internship and residency at CWRU’s medical school. A graduate of New York Medical College, Dr. Michener has taken an active role in leading geriatrics curriculum for medical students here at the University of Pennsylvania, recognizing the demographic need for growing and deepening knowledge of this field. “Geriatrics is the perfect specialty for medical educators because there is such great need in this space as our population ages. An added bonus is getting to practice in several diverse sites of care which keeps things really interesting.” Dr. Michener noted that she loves general internal medicine but is especially challenged by “thinking about the added layer of complexity that occurs in many older adults facing multimorbidity and complex social needs.” During her fellowship training at Penn she developed and later became the faculty advisor for the student interest group, GrANDMAS (Geriatrics, Aging, and Neurodegenerative Disease in Medicine and Society). In addition to her role as an associate program director for the fellowship, Dr. Michener is a clinical provider on the Acute Care for Elders (ACE) Unit, Ralston Home Care, the Penn Presbyterian Orthosurgical Co-Management and Consults service and is the medical director for the Penn Center for Continuing Care, a skilled nursing facility (SNF) administered by Penn Presbyterian and located in Penn Medicine Rittenhouse. She loves living in Philadelphia because she finds the city “Very accessible … we have some of the best restaurants in the country and my neighborhood, Fishtown, is home to a lot of them!” and in the summer, a well-earned relaxing trip to the beach is just a little over an hour away.

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