Dr. Nathan R. Roberts

Dr. Mohamad Allaf is Professor of Urology and Oncology, as well as Director of the Department of Urology and the Brady Urological Institute and Urologist-in-Chief of the Johns Hopkins Hospital. Dr. Allaf is a world renowned surgeon-scientist having performed more than 2,000 robotic procedures and published over 250 peer reviewed research papers in the field's best journals. As one of the busiest robotic radical prostatectomy surgeons in the world, he aims to achieve the best outcomes for his patients. Having trained with Dr. Patrick Walsh, Dr. Allaf has used Dr. Walsh's method of radical prostatectomy as the basis for his own anatomic method to this complex operation. Dr. Allaf is also amongst the leaders in kidney cancer surgery, having served on the American Urological Association Guideline Committee for Kidney Cancer. He led a team who performed the rigorous analysis to help inform the most recent guidelines that was funded by the Agency for Healthcare Research and Quality (AHRQ). He is best known for his ability to save the kidney and remove the tumor in patients with kidney tumors. Dr. Allaf runs a research endeavor aiming to decrease the morbidity associated with the treatment of cancer, and he has mentored numerous leaders in academic urology. He is actively involved in fund raising for research and education, and believes in expanding our base of support in order to advance our important mission. Dr. Allaf is rated as an Elite provider by MediFind in the treatment of Renal Oncocytoma. His top areas of expertise are Renal Cell Carcinoma (RCC), Renal Oncocytoma, Prostate Cancer, Nephrectomy, and Prostatectomy.

Mark Ball is a Plastic Surgeon and an Urologist in Bethesda, Maryland. Dr. Ball is rated as a Distinguished provider by MediFind in the treatment of Renal Oncocytoma. His top areas of expertise are Von Hippel-Lindau (VHL) Syndrome, Renal Cell Carcinoma (RCC), Renal Oncocytoma, Nephrectomy, and Prostatectomy.

Dr. Thomas W. Jarrett has an expertise in minimally invasive surgery, including laparoscopic, robotic, ureteroscopic, percutaneous and image-guided therapies. Specifically, he has an expertise in percutaneous renal surgery, laparoscopic partial and radical nephrectomy, kidney stones, urinary tract reconstruction and kidney cancer. Dr. Jarrett earned his medical degree from Emory University School of Medicine, where he also completed his internship. He completed a residency in urology at New York Hospital, followed by a visiting fellowship in urology and ultrasonography in Salzburg, Austria. Dr. Jarrett completed his fellowship in endo-urology at Long Island Jewish Medical Center. He has previously served as the chief of the division of endourology and laparoscopy at the Johns Hopkins Hospital and the chief of the division of urology at Johns Hopkins Bayview Medical Center. Dr. Jarrett has been named a Top MD by Consumers’ Checkbook Magazine and a Top Doctor in the Washington D.C. and Washington-Baltimore areas by Castle Connolly. He has also been named a Super Doctor by the Washington Post. Dr. Jarrett is a member of the American Urological Association, the Society of Urologic Oncology and the Endourological Society. Dr. Jarrett has contributed to various publications and presentations on urology, earning him first prize in the World Congress of Endourology essay contest and the Faculty Research Award at Long Island Jewish Medical Center. He has editorial appointments at the Journal of Endourology and the Journal of Laparoendoscopic and Advanced Surgical Techniques. Dr. Jarrett is rated as a Distinguished provider by MediFind in the treatment of Renal Oncocytoma. His top areas of expertise are Ureterocele, Renal Cell Carcinoma (RCC), Familial Wilms Tumor 2, Nephrectomy, and Ureteroscopy.