As the United States immigrant population continues to expand, the number of Americans with Limited English Proficiency (LEP) is expected to increase. Associated with this rise is the need for interpreter services to facilitate communication between patients with LEP and health care providers. Penn Language Link (PLL) is a group of trained student volunteer interpreters at the University of Pennsylvania who address this need by providing face-to-face medical interpretation in the clinics and hospitals of the University of Pennsylvania Health System (UPHS). Volunteer medical interpreters represent an important component of UPHS’ language services by facilitating patient-provider communication, decreasing use of untrained and ad hoc interpreters, easing the financial burden of providing face-to-face interpretation, and reducing dependence on bilingual staff.