Chang Na, MPH, MD is an internist and an occupational and environmental health specialist practicing with the Southern California Permanente Group in Central Valley, California. She was born in South Korea and grew up in her adopted home in California. She graduated with a major in neuroscience from Wellesley College before going onto University of California, San Diego School of Medicine. She finished her internal medicine residency and a fellowship in occupational and environmental health at Yale, where she also earned a Master’s degree in Public Health.

She is passionate about her medically underserved community in Central Valley. She serves on the board of various community non-profit organizations including Central California Asthma Collaborative and Bakersfield ARC, an organization devoted to helping community members with developmental and cognitive disabilities. She also serves as the medical professional member on the San Joaquin Valley Air Hearing Board, which deals with issues related to air quality rules and regulations.

She is a tireless advocate for improving healthcare. She is currently the President of the Kern County Medical Society and serves as a delegate to the California Medical Association and an alternate delegate to the American Medical Association. Her areas of focus are helping those living with disabilities, identifying and preventing environmental related illnesses, and improving health equity and access for underserved populations.

In her free time, she likes to attend local artists’ exhibits, and biking along the Kern River Parkway.