Skip to main content

Samuel C. Onyewu, MBChB

Academic Title:


Primary Appointment:



UMMC, S11C00

Phone (Primary):

(410) 328-3434


(410) 328-5531

Education and Training

09/2001 – 01/2009   MBChB., Obafemi Awolowo University, Nigeria

06/2009 – 05/2010   Internship, University of Nigeria Teaching Hospital, Nigeria

06/2014 – 06/2015   Internship, General Surgery, Howard University Hospital, Washington, DC

07/2015 – 06/2016   Residency, General Surgery, Howard University Hospital, Washington, DC

07/2017 – 06/2020   Residency, Anesthesiology, Virginia Commonwealth University Health System, VA

07/2020 – 06/2021   Fellowship, Acute/Regional Pain, Yale New Haven Hospital, CT

Highlighted Publications

Peer reviewed journal articles

1. Disparities in breast cancer surgery delay: the lingering effect of race. Sheppard VB, Oppong BA, Hampton R, Snead F, Horton S, Hirpa F, Brathwaite EJ, Makambi K, Onyewu S, Boisvert M, Willey S. Ann Surg Oncol. 2015 Sep; 22 (9):2902-11, doi: 10.1245/s10434-015-4397-3. Epub 2015 Feb 5.

2. Characterization of Hepatitis B and C among Liver Transplant Recipients with Hepatocellular Carcinoma: An Analysis of the Nationwide Inpatient Sample Database.Lam PH, Obirieze AC, Ortega G, Nwokeabia I, Onyewu S, Purnell SD, Samimi MM, Weeks CB, Lee EL, Shokrani B, Frederick WA, Callender CO, Wilson LL. Transplant Proc. 2016 Jan-Feb; 48 (1):123-7, doi: 10.1016/j.transproceed.2015.12.008. PMID: 26915856

3. Bariatric surgery outcomes in black patients with super morbid obesity: A 1-year postoperative review. Onyewu SC, Ogundimu OO, Ortega G, Bauer ES, Emenari CC, Molyneaux ND, Layne SA, Changoor NR, Tapscott D, Tran DD, Fullum TM. Am J Surg. 2017 Jan; 213(1):64-68, doi: 10.1016 j. amjsurg.2016.05.010. Epub 2016 Jun 16. PMID: 27816202

Book Chapters

1. Onyewu S, Coombs AT, Kromah F. Vascular Endothelial Dysfunction and Inflammatory States in Corey Scher, Alan Kaye, Henry Liu and Seth Perelman (Eds): Essentials of Blood Product Management in Anesthesia Practice. (Chapter 22). Springer Science April 2021.

2. Onyewu S, Kromah F. Medicolegal issues in Obstetric Anesthesia in Urman et al (Ed). Obstetric Anesthesia Practice. (Chapter 28) Oxford University Press 2020.