Steven Cha (UnitedHealthcare) Dr. Stephen Cha is Chief Medical Officer of UnitedHealthcare Community & State, where he oversees clinical strategies and programs while acting as the liaison for critical clinical initiatives. He also plays a key role in clinical thought leadership and serves as a subject matter expert in care decisions throughout Community & State. Prior to joining UnitedHealthcare, Dr. Cha served as the Group Director in the State Innovation Group at the Center for Medicare & Medicaid Innovation (CMMI). He has also served as the Chief Medical Officer at the Center for Medicaid & CHIP Services (CMCS), and is a practicing physician. Dr. Cha has a strong background in dynamic health policy thought leadership, health care transformation, and quality reporting.