Brian D. Pieninck is the President and Chief Executive Officer (CEO) of CareFirst BlueCross BlueShield, a leading multi-line, not-for-profit healthcare company offering a comprehensive portfolio of health insurance products through its affiliates and subsidiaries and administrative services to 3.5 million individuals and employers in Maryland, the District of Columbia and Northern Virginia.

Brian joined CareFirst BlueCross BlueShield in April 2015 as Executive Vice President of the Large Group Strategic Business Unit. He assumed the role of Chief Operating Officer in May 2017 with responsibility for the organization's four Strategic Business Units and Technology & Operational Support Services. In May of 2018, Brian was unanimously selected by the CareFirst Boards to become President and CEO, beginning his leadership of the company on July 1, 2018.

Prior to joining CareFirst, Brian was a member of Aetna Inc.'s executive team, where he held key leadership positions during a 19-year tenure, including Director of Professional Employer Organizations, President of Southeast National Accounts, and President of the Americas for Aetna International.

Brian serves on the Boards of the Blue Cross Blue Shield Association, Federal Employee Program Board of Managers, Greater Baltimore Committee, Baltimore’s Promise, BCS Financial Corporation, Greater Washington Partnership, Synergie Medication Collective, and the Greater Washington Board of Trade. Additionally, Brian is the Chairman of the Board for the Council for Affordable Quality Healthcare (CAQH), and the Board of Trusted Health Plans, Inc., Trusted Health Plan (District of Columbia), Inc., and CareFirst Community Health Plan (Maryland).

Brian holds a Bachelor of Science in Business Studies Business Administration from Southern New Hampshire University and is a graduate of Leadership Maryland's Class of 2016. A native of Southeastern Pennsylvania, Brian and his family currently reside in Baltimore County, Maryland.