Robert Ray Redfield III
Biography
Robert Ray Redfield III, M.D., FACS, is Chief of the Division of Transplantation and Associate Professor of Surgery at the University of California, Irvine. He received his M.D., magna cum laude, from the University of Maryland School of Medicine, where he was elected to Alpha Omega Alpha in his junior year and served as president. Redfield completed his general surgery residency and served as chief resident at the Hospital of the University of Pennsylvania, followed by a postdoctoral research fellowship and an abdominal transplant surgery fellowship at the University of Wisconsin Hospital and Clinics.
Redfield's research focuses on desensitization strategies and antibody-mediated rejection in kidney and pancreas transplantation, with particular emphasis on B-lymphocyte survival factors and novel immunotherapeutic approaches. He has served as principal investigator or co-investigator on multiple NIH-funded studies, including research on APRIL/BLyS blockade for reducing donor-specific antibodies and chimeric antigen receptor T cell therapy for desensitization. His work has been recognized with awards including the Hartwell Foundation Individual Biomedical Research Award for xenotransplantation research, the Wisconsin Alumni Research Foundation Professorship, and the NIH KL2 Scholar Award. He has published over 90 peer-reviewed articles and serves as an ad hoc reviewer for journals including the New England Journal of Medicine, American Journal of Transplantation, and Kidney International.
Prior to joining UCI, Redfield served as Surgical Director of the Living Donor Kidney Program at the Hospital of the University of Pennsylvania and as Associate Surgical Director of the Kidney Transplant Program at the University of Wisconsin Hospital and Clinics. He has been a medical board member of the National Kidney Registry since 2018 and serves on national committees including the American Society of Transplant Surgeons Legislation/Regulation Committee and the International Pancreas and Islet Transplant Association Pancreas Committee. He has mentored numerous clinical fellows, residents, and research trainees throughout his career.
Return to topEducation
- B.S. in Engineering, Loyola University Maryland, 2000
- M.D., University of Maryland School of Medicine, 2006
Distinctions
- Fellow of the American College of Surgeons, 2018
- University of Maryland Alpha Omega Alpha – Junior Year Election, President, 2005
- International Pancreas and Islet Transplant Association Young Investigator Award, 2015
- American Transplant Congress Young Investigator Award, 2011
- American Transplant Congress Poster of Distinction, 2012, 2014-2015
- Wisconsin Alumni Research Foundation Professorship, 2017
- Humanism Honor Society, University of Maryland School of Medicine, 2005
- UPENN Department of Surgery Transplant Resident Teaching Award, 2020
- University of Maryland William D. Kaplan, M.D. Award – For Humanism in Medicine, 2006
- University of Maryland Louis, Ida, and Samuel Cohen Award - For Scholarship, Ability and Compassion for Patients, 2006
Areas of Expertise
- Transplantation Surgery
- Donor Specific Antibody Reduction
- B-Lymphocyte Survival Factor Inhibition
- Pancreas Allograft Outcomes
- Highly Sensitized Recipient Desensitization
- Living Donor Kidney Programs
- Xenotransplantation for Diabetes
Recent Publications
- Leonberg-Yoo A., Redfield R., Dunn T., Fleming J.N., Fonk J., Hil G., Cooper M., “Strategic Innovations to Reduce Disincentives and Increase Living Kidney Donation” (opens in new tab), Kidney360, vol. 7, pp. 397-407, 2026.
- Yeh S.-T., Marshall N.A., Lehman B.P., Rubinstein C.D., Shanmuganayagam D., Meudt J.J., Redfield R.R., Hidalgo L.G., Dominko T., Aufhauser D.D., “Rituximab-based antibody mediated rejection therapy modestly reduces Xenoreactive antibodies: Implications for pig-to-human xenotransplantation” (opens in new tab), Transplant Immunology, vol. 94, 2026.
- Arpali E., Abu-Gazala S., Redfield R.R., Leonberg-Yoo A., Dunn T.B., “Transplant center practices that maximize access to living kidney transplantation: the Penn experience” (opens in new tab), Frontiers in Immunology, vol. 16, 2026.
- Hasjim B.J., Paukner M., Kwong A.J., Bhat M., Ichii H., Redfield R.R., Eng O.S., Jutric Z., Imagawa D.K., Ayabe R.I., “Impact of the 6-mo Wait Policy on Transplantation, Resection, and Ablation Outcomes for Patients With Hepatocellular Carcinoma: A National Cancer Database Analysis” (opens in new tab), Transplantation, vol. 110, pp. e204-e216, 2026.
- Hasjim B.J., Chen S.-Y., Hlaing N.K.T., Ichii H., Redfield R.R., Imagawa D.K., Bhat M., “Donor-recipient age mismatch and outcomes in liver transplantation: A scientific registry of transplant recipients database analysis” (opens in new tab), World Journal of Transplantation, vol. 15, 2025.
- Hasjim B.J., Ostowari A., Gandawidjaja M., Mohammadi M.D., Murphy L.S.-L., Whealon M.D., Vilchez V., Ichii H., Redfield R.R., Eng O.S., “De novo colorectal cancer after kidney transplantation: a systematic review and meta-analysis” (opens in new tab), British Journal of Cancer, vol. 132, pp. 1010-1018, 2025.
- Wang L.S., Ertmann E., Feldman E., Kossoff M., Lu B., Lin J.C., Pishko A., Redfield R., Leonberg-Yoo A., Cuker A., “Utility of Activated Partial Thromboplastin Time Screening in Prospective Living Kidney Donors: A Single Center Cohort Study” (opens in new tab), Kidney Medicine, vol. 7, 2025.
- Esayed S., Kim E., Sung H.C., Al-Seraji A., Adeyemo S., Troutt H., Tantisattamoa E., Ferrey A., Reddy U.G., Malik F.T., Redfield R.R., Ichii H., Muzaale A.D., Malhotra D., Al Ammary F., “Hybrid Telemedicine and In-Person Care for Kidney Transplant Follow-Up: A Qualitative Study” (opens in new tab), Clinical Transplantation, vol. 39, 2025.
- Hasjim BJ, Sanders JM, Alexander M, Redfield RR 3rd, Ichii H, “Perfusion Techniques in Kidney Allograft Preservation to Reduce Ischemic Reperfusion Injury: A Systematic Review and Meta-Analysis” (opens in new tab), Antioxidants (Basel), vol. 13, no. 6, pp. 642, 2024.
- Shaked O., Redfield R., “Management of Post-Kidney Transplantation Ureteral Stricture” (opens in new tab), Complications in Kidney Transplantation A Case Based Guide to Management, pp. 125-131, 2022.
Most Cited Publications
- Redfield RR, Scalea JR, Odorico JS, “Simultaneous pancreas and kidney transplantation: current trends and future directions” (opens in new tab), Current Opinion in Organ Transplantation, vol. 20, no. 1, pp. 94-102, 2015.
- Redfield RR, Kaufman DB, Odorico JS, “Diagnosis and Treatment of Pancreas Rejection” (opens in new tab), Current Transplantation Reports, vol. 2, no. 2, pp. 169-175, 2015.
- Scalea JR, Redfield RR, Foley DP, “Liver transplant outcomes using ideal donation after circulatory death livers are superior to using older donation after brain death donor livers” (opens in new tab), Liver Transplantation, vol. 22, no. 9, pp. 1197-204, 2016.
- Redfield RR, Rickels MR, Naji A, Odorico JS, “Pancreas Transplantation in the Modern Era” (opens in new tab), Gastroenterology Clinics of North America, vol. 45, no. 1, pp. 145-66, 2016.
- Parsons RF, Locke JE, Redfield RR, Roll GR, Levine MH, “Kidney transplantation of highly sensitized recipients under the new kidney allocation system: A reflection from five different transplant centers across the United States” (opens in new tab), Human Immunology, vol. 78, no. 1, pp. 30-36, 2017.
- Al-Qaoud TM, Odorico JS, Redfield RR, “Pancreas transplantation in type 2 diabetes: expanding the criteria” (opens in new tab), Current Opinion in Organ Transplantation, vol. 23, no. 4, pp. 454-460, 2018.
- Bath NM, Al-Qaoud T, Williams DH, Sollinger HW, Redfield RR, “Renal autotransplantation results in pain resolution after left renal vein transposition” (opens in new tab), Journal of Vascular Surgery Venous and Lymphatic Disorders, vol. 7, no. 5, pp. 739-741, 2019.
- Sollinger HW, Al-Qaoud T, Bath N, Redfield RR, “The "UW-LPHS Test": A New Test to Predict the Outcome of Renal Autotransplant for Loin Pain Hematuria Syndrome” (opens in new tab), Experimental and Clinical Transplantation, vol. 16, no. 6, pp. 651-655, 2018.
- Bath NM, Fahl WE, Redfield RR, “Significant Reduction of Murine Renal Ischemia-Reperfusion Cell Death Using the Immediate-Acting PrC-210 Reactive Oxygen Species Scavenger” (opens in new tab), Transplantation Direct, vol. 5, no. 7, pp. e469, 2019.
- Al-Qaoud T, Bath N, Redfield RR, Sollinger HW, “Salvage Renal Autotransplant Following Previous Renal Vein Stenting in Nutcracker Syndrome” (opens in new tab), Experimental and Clinical Transplantation, vol. 18, no. 3, pp. 300-305, 2020.
This profile was created with the help of AI.
Last updated on 4/2/2026.