Dr. Kathryn Hay

Brian Eisner is a Urologist practicing medicine in Boston, Massachusetts. Dr. Eisner is highly rated in 24 conditions, according to our data. His clinical expertise encompasses Kidney Stones, Urinary Tract Infection (UTI), Obstructive Uropathy, Ureteroscopy, and Lithotripsy.

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 highly rated in 19 conditions, according to our data. His clinical expertise encompasses Bladder Cancer, Muscle Invasive Bladder Cancer, Prostate Cancer, Cystectomy, and Prostatectomy. Dr. Preston is board certified in Urology.

Adam Feldman is a Urologist practicing medicine in Boston, Massachusetts. Dr. Feldman is highly rated in 24 conditions, according to our data. His clinical expertise encompasses Renal Cell Carcinoma (RCC), Bladder Cancer, Urothelial Cancer, Nephrectomy, and Cystectomy.