Dr. David Chan is Assistant Professor of Urology and Pathology at Johns Hopkins University School of Medicine and a member of the Division of Endourology. His primary clinical interest is in minimally invasive therapies for the treatment of benign and malignant diseases of the urinary tract. His particular clinical interests are prostate cancer, bladder cancer, kidney cancer, benign prostate enlargement, and kidney stones. His research is focused on urologic applications of ablative energies, such as high intensity focused ultrasound and radiofrequency ablation.