A City Not Forsaken, Cheney Duvall Series by Lynn Morris and published by Hendrickson.
She's back in familiar surroundings, but her heart yearns for something else. Cheney returns to New York from the Ozark Mountains, where she worked hard trying to care for the mountain folks. New York brings new challenges. Cheney now treats New York's wealthy elite as part of a private practice she shares with Devlin Buchanan, the handsome doctor who had once proposed to her. When an outbreak of cholera sweeps the city bringing tragedy in its wake, Cheney must make a choice: can she remain in a privileged cocoon when just miles away there are poor people who desperately need medical treatment?