Meet Our People

Mary V. Mason, M.D., MBA, FACP

Mary V. Mason, M.D., MBA, FACP, is the Senior Vice President and Chief Medical Officer of Corporate Health Initiatives at Centene Corporation. She has led the development of innovative, award-winning clinical programs that dramatically improve quality and result in lower medical costs in a managed Medicaid Population.

In addition to her responsibilities with Centene, Dr. Mason serves on the Boards of Oasis, St. Luke’s Hospital Friends, and the Girl Scouts of Eastern Missouri. She is the founder of Little Medical School, an after-school program designed for elementary-aged students to encourage them to consider careers in healthcare. She is a clinical instructor at the Washington University School of Medicine and an adjunct lecturer at the John Olin Business School. Dr. Mason is a member of the National Council for Washington University Institute for Health. Additionally, she is a volunteer physician at Casa de Salud, a healthcare clinic for uninsured and underinsured St. Louis area immigrants.

Dr. Mason is the lead author on several peer-reviewed papers focused on reducing premature births in the Medicaid population, including the Managed Care Primer, a textbook aimed at teaching medical and business students about managed care. Her achievements include the management and improvement of Centene’s pregnancy and post-partum management program Smart Start for Your Baby which promotes healthy choices for both mother and baby to ensure full term, healthy pregnancies and encourage healthy choices after birth. She also dedicates her time to the development of a health educational book series with over 50 books on topics such as diabetes, asthma, bullying, foster care, dental and vision.

She has been recognized as a member of the 2008 class of 40 under 40 and the 2016 Most Influential Business Women by the St. Louis Business Journal.

Dr. Mason earned her Bachelor of Science degree in Bioengineering at the University of Illinois and a M.D. and MBA from Washington University. She completed her clinical training at the Washington University School of Medicine and Barnes-Jewish Hospital, where she was Chief Resident for the Department of Medicine. She is board-certified in internal medicine, is a fellow of the American College of Physicians and a member of Alpha Omega Alpha Medical Honorary Society.