Niall Brennan is Chief Data and Analytics Officer at Horizon Blue Cross and Blue Shield. Previously Niall was the Senior Advisor for Data Strategy to the CDC Director where he provided guidance to the CDC Director on the multi-billion dollar CDC Data Modernization Initiative (DMI), as well as working directly with CDC Centers and Offices to accelerate implementation of the DMI.
Prior to coming to CDC, Brennan was Chief Analytics and Privacy Officer at Clarify Health, where he led Clarify’s analytics and informatics strategy. He joined Clarify following his role as CEO of the Health Care Cost Institute, from 2017–2022, and previously served as the Chief Data Officer at the Centers for Medicare & Medicaid, from 2010–2017, where he led the Obama administration’s healthcare transparency efforts, built an advanced analytics enterprise, and played a key role in implementing numerous Affordable Care Act provisions, including the Qualified Entity Program and the Physician Payments Sunshine Act.