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Katherine Parris Frey, PhD

  • Assistant Scientist

Departmental Affiliations

Contact Information

415 N. Washington Street
Room 353
Baltimore, Maryland 21205


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PhD, University of Maryland School of Nursing, 2017
RN, Maryland Board of Nursing, 2011
MS, University of Maryland School of Nursing, 2010
MPH, Johns Hopkins Bloomberg School of Public Health, 2000


Ms. Frey is Associate Director for Protocol Development and Implementation of the Major Extremity Trauma Research Consoritum and an Assistant Scientist in the Johns Hopkins Bloomberg School of Public Health (JHSPH), Department of Health Policy and Management. Ms. Frey is a Masters prepared nurse with extensive experience and expertise in coordinating multi-center interdisciplinary research studies, including the National Study on Costs and Outcomes of Trauma Care and the Guided Care Study. Her research interests include implementation science and trauma outcomes, in addition to improving the quality of health care. 

  • Trauma Care Guided Care Implementation Science Orthpaedic Trauma Outcomes Pain

    MacKenzie EJ, Rivara FP, Jurkovich GJ, Nathens AB, Frey KP, Egleston BL, Salkever DS, Scharfstein DO. A national evaluation of the effect of trauma-center care on mortality. N Engl J Med. 354(4):366-78.

  • Aliotta, S. L., Grieve, K., Giddens, J. F., Dunbar, L., Groves, C., Frey, K. & Boult, C.Guided care: a new frontier for adults with chronic conditions. Professional Case Management. 13, 3, p. 151-158.

  • Foret Giddens, J., Tanner, E., Frey, K., Reider, L. & Boult, C. Expanding the gerontological nursing role in Guided Care. Geriatric Nursing. 30, 5, p. 358-364.

  • Boult, C., Leff, B., Boyd, C. M., Wolff, J. L., Marsteller, J. A., Frick, K. D., Wegener, S., Reider, L., Frey, K., Mroz, T. M., Karm, L. & Scharfstein, D. O. A matched-pair cluster-randomized trial of guided care for high-risk older patients.Journal of General Internal Medicine. 28, 5, p. 612-621.