Dr. Stephen C. Johnson

Dr. Ronney Abaza is a urologist in Columbus, Ohio whose practice and academic interests are dedicated solely to robotic surgery. Dr. Abaza has performed over 7,500 robotic operations for urologic cancers and other conditions. He is an innovator in robotic surgery as the first in the world to report robotic surgery for adrenocortical carcinoma, kidney cancer with caval thrombi, ureteroileal anastomosis revisions after cystectomy, and renal autotransplantation and several other procedures. He has authored over 150 book chapters and articles in the fields of robotic surgery and urologic cancers, and his work has been cited in over 2,000 publications. Dr. Abaza frequently serves as faculty at conferences and educational courses and has performed live surgery for the American Urological Association (AUA), the World Congress of Endourology, ERUS, NARUS, IRUS, and SRS, among others. Dr. Abaza is highly rated in 27 conditions, according to our data. His top areas of expertise are Renal Cell Carcinoma (RCC), Prostate Cancer, Familial Prostate Cancer, Nephrectomy, and Lymphadenectomy.

Eric Singer is an Urologist in Columbus, Ohio. Dr. Singer is highly rated in 21 conditions, according to our data. His top areas of expertise are Renal Cell Carcinoma (RCC), Bladder Cancer, Ureterocele, Nephrectomy, and Lymphadenectomy. Dr. Singer is currently accepting new patients.

Bodo Knudsen is an Urologist in Columbus, Ohio. Dr. Knudsen is highly rated in 15 conditions, according to our data. His top areas of expertise are Kidney Stones, Perirenal Abscess, Carbuncle, Lithotripsy, and Ureteroscopy. Dr. Knudsen is currently accepting new patients.