Leana Sheryle Wen (Chinese: 温麟衍; born Wen Linyan; January 27, 1983) is an American physician, an op-ed columnist with The Washington Post and a CNN medical analyst. She is a practicing physician, a former Health Commissioner for the City of Baltimore, and author of the books When Doctors Don't Listen: How to Avoid Misdiagnoses and Unnecessary Tests and Lifelines: A Doctor's Journey in the Fight for Public Health. Currently, she is a visiting professor of Health Policy and Management at the George Washington University, where she is a Distinguished Fellow in the Fitzhugh Mullan Institute for Health Workforce Equity. She is also a Nonresident Senior Fellow at the Brookings Institution.