Professor and Chair
University of Pennsylvania Health System PM&R Program
Timothy R. Dillingham MD MS, Professor and Chair of The Department of Physical Medicine and Rehabilitation. His career spans academia, clinical practice, and prosthetic innovation. Dr. Dillingham is currently the William J. Erdman II, Professor and Chair for the Department of Physical Medicine and Rehabilitation (PM&R) at the University of Pennsylvania in Philadelphia, PA. He earned his Medical Degree from the University of Washington, School of Medicine in Seattle, Washington in 1986. He completed his internship and residency in Rehabilitation Medicine at the University of Washington in 1990. He is board certified in PM&R and Electrodiagnostic Medicine.
Following his training, Dr. Dillingham served for four years in the US Army at Walter Reed Army Medical Center, in Washington, D.C during the Persian Gulf War. In 1994, Dr. Dillingham joined the Department of PM&R at the Johns Hopkins University in Baltimore, MD. In 2003, he assumed the Chair position for the Department of PM&R at the Medical College of Wisconsin in Milwaukee, Wisconsin. In 2011 he became Chair at the University of Pennsylvania.
He won the Distinguished Researcher Award in 2010 from the American Association of Neuromuscular and Electrodiagnostic Medicine (AANEM). His research interests include prosthetic engineering, electrodiagnostic medicine, and post-acute care. In 2022 he won the AANEM Innovation Award. In 2025 he won the AAP Distinguished Academician Award.
Dr. Dillingham’s entrepreneurial spirit led him to found iFIT Prosthetics LLC in 2010, to address the many shortcomings of conventionally fabricated lower limb prosthetics. His engineering background and familiarity with industrial manufacturing processes, made him realize that prosthetic sockets could be adjustable, fit and aligned in a single clinic visit, and mass-produced for high quality and consistency at more affordable prices. This care delivery model holds promise for addressing health disparities for persons with lower limb loss.