On a spring evening last year, Debra Davidson flipped on the television to watch the local news. When an item came on about her longtime physician, she perked up and leaned forward. Then she screamed. Her husband rushed into the living room to see if everything was O.K.
Everything was not O.K. The report said that her cardiologist, Dr. Arvind Gandhi, had been sued by two former patients who accused him of performing unnecessary operations.