Dr. John J. Janeiro

Adam Feldman is a Urologist in Boston, Massachusetts. Dr. Feldman is rated as an Elite provider by MediFind in the treatment of Urothelial Cancer. His top areas of expertise are Renal Cell Carcinoma (RCC), Urothelial Cancer, Bladder Cancer, Nephrectomy, and Cystectomy. Dr. Feldman is currently accepting new patients.

Dr. Mark A. Preston is a urologic surgeon at Brigham and Women’s Hospital and Associate Professor of Surgery at Harvard Medical School. Dr. Preston received his Medical Degree from the University of Ottawa in Canada, where he also completed his residency training in Urology. He completed a three-year accredited fellowship in Urologic Oncology at Massachusetts General Hospital including a Masters of Public Health from the Harvard School of Public Health with a concentration in clinical effectiveness. He is board certified in Urology.Dr. Preston’s clinical interests include urologic oncology (bladder, kidney, prostate and testicular cancer) and minimally invasive surgery. Dr. Preston’s research focuses on the epidemiology of prostate and kidney cancer risk with an emphasis on predictive biomarkers and pharmacoepidemiology. Dr. Preston is rated as an Elite provider by MediFind in the treatment of Urothelial Cancer. His top areas of expertise are Bladder Cancer, Muscle Invasive Bladder Cancer, Prostate Cancer, Cystectomy, and Prostatectomy.

Boris Gershman is a Urologist in Boston, Massachusetts. Dr. Gershman is rated as a Distinguished provider by MediFind in the treatment of Urothelial Cancer. His top areas of expertise are Bladder Cancer, Urothelial Cancer, Renal Cell Carcinoma (RCC), Nephrectomy, and Cystectomy.