Dr. John B. Maggioncalda

Dr. Brian Matlaga is a Professor of Urology at Johns Hopkins University School of Medicine and also is the Director of the Stephens Center for Stone Disease as well as the Executive Vice Chair of the James Buchanan Brady Urological Institute. Dr. Matlaga is an internationally recognized expert in the medical and surgical management of patients with urinary stone disease. A frequent contributor to the medical press, with over 180 peer-reviewed publications, Dr. Matlaga’s research has received national and international awards. Dr. Matlaga sits on numerous editorial boards as well as advisory committees and guidelines panels for the American Urological Association, the American Board of Urology, the Endourological Society, and the National Institutes of Health, amongst others. Dr. Matlaga serves as Executive Medical Director of Clinical Affairs for Johns Hopkins Medicine International, the arm of Johns Hopkins Medicine that manages its global presence. In this capacity, he delivers clinical care as well as project leadership across the globe. Dr. Matlaga is rated as an Elite provider by MediFind in the treatment of Bladder Stones. His top areas of expertise are Kidney Stones, Bladder Stones, Boils, Ureteroscopy, and Lithotripsy.

Nathan Roberts is an Urologist in Ashburn, Virginia. Dr. Roberts is rated as a Distinguished provider by MediFind in the treatment of Bladder Stones. His top areas of expertise are Obstructive Uropathy, UPJ Obstruction, Urinary Tract Infection in Children, Ureteroscopy, and Prostatectomy. Dr. Roberts is currently accepting new patients.

David Sigman is an Urologist in Baltimore, Maryland. Dr. Sigman is rated as a Distinguished provider by MediFind in the treatment of Bladder Stones. His top areas of expertise are Enlarged Prostate (BPH), Urinary Tract Infection in Children, Urinary Tract Infection (UTI), Ureteroscopy, and Prostatectomy. Dr. Sigman is currently accepting new patients.