Her areas of expertise include the following: cancer surgery, head surgery, and colonoscopy. She takes CIGNA Plans, Humana HMO, and Humana Bronze, in addition to other insurance carriers. After completing medical school at Northwestern University, Feinberg School of Medicine, Dr. O'Connor performed her residency at a hospital affiliated with the University of Illinois. She is professionally affiliated with SSM Health Good Samaritan Hospital - Mt. Vernon, Adventist Health Partners (AHP), and Adventist Medical Center Hinsdale.