Dr. Richard T. Zuerner

Brian Eisner is a Urologist in Boston, Massachusetts. Dr. Eisner is highly rated in 24 conditions, according to our data. His top areas of expertise are 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 top areas of expertise are Bladder Cancer, Muscle Invasive Bladder Cancer, Prostate Cancer, Cystectomy, and Prostatectomy.

John Heffernan is a Urologist in Wakefield, Rhode Island. Dr. Heffernan is highly rated in 46 conditions, according to our data. His top areas of expertise are Hydronephrosis, UPJ Obstruction, Obstructive Uropathy, Ureteroscopy, and Nephrectomy.