Michael Ordon

MD, FRCSC, MSc

Investigator

Biography

Dr. Michael Ordon is a Staff Urologist at St. Michael’s Hospital and an Associate Scientist in Li Ka Shing Knowledge Institute. Following his residency training at the University of Toronto, he completed a two-year fellowship at St. Michael’s Hospital specializing in kidney stones, minimally invasive urologic surgery and renal transplantation. During this time, he also completed a Master of Science in Clinical Epidemiology and Health Care Research through the Institute of Health Policy Management and Evaluation, at the University of Toronto. He also completed a second fellowship at the University of California Irvine focusing on image-guided ablation for small kidney tumours. His clinical practice focuses on the surgical management of complex kidney stones, renal transplantation, laparoscopic urology, and robotic-assisted surgery, as well as image guided cryoablation of small renal tumours. His primary research interest is in health services research and he holds an appointment as an Adjunct Scientist at the Institute for Clinical Evaluative Sciences (ICES). In particular, his research focuses on the epidemiology and treatment of kidney stone disease and outcomes research for renal transplantation.

Recent Publications

  1. Arya, R, Sharpe, I, Cheng, SY, Sykes, J, Ma, X, Stanojevic, S et al.. Elevated Rates and Earlier Onset of Nonpulmonary Comorbidities in Adults with Cystic Fibrosis: A Population-based Study. Ann Am Thorac Soc. 2025;22 (12):1874-1880. doi: 10.1513/AnnalsATS.202502-170OC. PubMed PMID:40720184 .
  2. Rosen, A, Palma, L, Ordon, M, Melamed, N, Saskin, R, Page, A et al.. Pregnancy outcomes following medical vs surgical treatment of tubal ectopic pregnancy: a population-based retrospective cohort study. Am J Obstet Gynecol. 2025;233 (6):625.e1-625.e17. doi: 10.1016/j.ajog.2025.07.008. PubMed PMID:40645471 .
  3. Bobrowski, A, Czajkowski, S, Lajkosz, K, Ordon, M, Lee, JY. The impact of the COVID-19 pandemic on kidney stone management in a single-payer system. Can Urol Assoc J. 2025;19 (10):341-348. doi: 10.5489/cuaj.9223. PubMed PMID:40637625 PubMed Central PMC12517448.
  4. Ordon, M, Bota, S, Kang, Y, Welk, B. The Impact of Timing of Definitive Intervention for Patients with Acute Renal Colic: A Population-Based Study. J Endourol. 2025;39 (7):708-715. doi: 10.1089/end.2024.0657. PubMed PMID:40452579 .
  5. Hysi, E, Baek, J, Koven, A, He, X, Ulloa Severino, L, Wu, Y et al.. A first-in-human study of quantitative ultrasound to assess transplant kidney fibrosis. Nat Med. 2025;31 (3):970-978. doi: 10.1038/s41591-024-03417-5. PubMed PMID:40033112 PubMed Central PMC11922760.
  6. Assad, A, Moustafa, M, Raizenne, BL, Kogon, M, Lee, JY, Ordon, M et al.. Kidney stone disease Practice patterns among urologists in Canada. Can Urol Assoc J. 2025;19 (5):E153-E159. doi: 10.5489/cuaj.8955. PubMed PMID:39661188 PubMed Central PMC12091034.
  7. Ordon, M, Lantz Powers, A, Chew, BH, Lee, JY, Kogon, M, Sivalingam, S et al.. Incidence and trends in the treatment of kidney stones in Canada A population-based cohort study. Can Urol Assoc J. 2024;18 (6):158-164. doi: 10.5489/cuaj.8596. PubMed PMID:38381927 PubMed Central PMC11230698.
  8. Ordon, M, Mnatzakanian, A, Djuimo, M, Honey, RJD, Lee, JY. Robotic-assisted laparoscopic pyeloplasty for ureteropelvic junction obstruction A retrospective review of a high-volume Canadian center. Can Urol Assoc J. 2024;18 (3):E59-E64. doi: 10.5489/cuaj.8507. PubMed PMID:38010221 PubMed Central PMC10954277.
  9. Wu, J, Sami, S, Lajkosz, K, Kishibe, T, Ordon, M. An Updated Systematic Review and Meta-Analysis on the Technical, Oncologic, and Safety Outcomes of Microwave Ablation in Patients with Renal Cell Carcinoma. J Endourol. 2023;37 (12):1314-1330. doi: 10.1089/end.2023.0342. PubMed PMID:37819699 .
  10. Gomez, D, Stukel, TA, Baxter, NN, Acuna, SA, Wilton, AS, Treleaven, D et al.. A Population-Based Analysis of the Impact of the COVID-19 Pandemic on Solid Organ Transplantation in Ontario, Canada: Policy Response and Changes in Volume and 90-Day Outcomes. Ann Surg Open. 2023;4 (1):e230. doi: 10.1097/AS9.0000000000000230. PubMed PMID:37600867 PubMed Central PMC10431431.
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Affiliations & Other Activities

  • Staff Urologist, Department of Medicine, St. Michael’s Hospital
  • Adjunct Scientist, Institute For Clinical Evaluative Sciences