Dr. Alan Benvenisty, MD is a board-certified general surgeon in New York City with a » Dr. Alan Benvenisty, MD is a board-certified general surgeon in New York City with a specialty in vascular diagnosis, endovascular procedures, and vascular surgery. He offers treatment to patients suffering from renal failure, disease symptoms, blood clots, and aneurysms. Follow us and read articles about diagnosing vascular problems and patient questionnaires.