Chairman, President, & Chief Executive Officer

Michael F. Neidorff is recognized as a transformative leader and executive with a wealth of experience in starting and managing healthcare enterprises. He has successfully led the development and implementation of programs and services under Medicaid, Medicare, and commercial managed care while remaining committed to the core philosophy that quality healthcare is best delivered locally.


Mr. Neidorff became president and chief executive officer of Centene Corporation in 1996. From the time Mr. Neidorff joined Centene, he has led its transformation from a closely held, $40 million corporation to a publicly traded (NYSE: CNC), FORTUNE® 100, diversified, multi-national healthcare enterprise with annual revenues expected to exceed $104 billion in 2020. Mr. Neidorff is the longest-tenured CEO among the major managed care companies.


Michael Niedorff at WEF in Davos, SwitzerlandUnder Mr. Neidorff’s direction, Centene has expanded from operating Medicaid health plans solely in Wisconsin and Indiana, to operations and implementations in 50 states serving more than 24 million managed care and TRICARE eligible beneficiaries. The company provides cost-effective coverage solutions to the rising number of under-insured and uninsured people. In 2019, Centene ranked No. 51 on the FORTUNE 500® List. Centene was recognized as one of the FORTUNE 2020 World’s Most Admired Companies® and was ranked No. 7 on the 2019 Change the World® list.


In 1985, Mr. Neidorff started Physicians Health Plan of Greater St. Louis, a subsidiary of UnitedHealth Group and served as the president and chief executive officer until 1995. The plan grew to 175,000 members with a network of over 3,000 providers, making it one of UnitedHealth Group’s most successful and profitable health plans in the country.


From 1995 to 1996, Mr. Neidorff served as regional vice president of Coventry Health Care, Inc., a publicly traded managed care organization, and as the president and chief executive officer of one of its subsidiaries, Group Health Plan Inc. in St. Louis. Under Mr. Neidorff’s leadership, the plan was one of the first in the country to offer new mothers a 48-hour stay in the hospital with follow-up care in the home.  


Mr. Neidorff also spent 18 years in international senior executive positions at Miles Laboratories/Bayer AG. He has in-depth marketing, general management, and profit & loss experience in healthcare management and consumer packaged goods.


Mr. Neidorff dedicates a portion of his time to several arts and civic organizations. Having served as chairman of the board of trustees for the National Urban League from 2014–2019, he remains on the board as a committee member. In February 2015, he was inducted into the Hall of Fame for Junior Achievement of Greater St. Louis. Beginning in 1990, he joined the board of directors for the Greater St. Louis Boy Scouts of America. During his tenure as a director, he served as Pathfinder district chair, vice chairman and chairman of the Special Needs Committee, vice president of Finance and, most recently, council president.


With extensive experience and knowledge in healthcare, Mr. Neidorff is a St. Louis Chapter member of CEOs Against Cancer. Mr. Neidorff is also a member of several civic organizations such as the St. Louis Regional Chamber, and Civic Progress.


Believing in quality education for all students, Mr. Neidorff until recently served as chairman of the board of trustees for his alma mater, Trinity University, in San Antonio, Texas, and still serves on the board.


Michael Neidorff speaking in front of Centene Corporate Headquarters in Clayton, MOHaving an appreciation for the arts, Mr. Neidorff serves on the board of the St. Louis Symphony Orchestra, where he served a term as chairman and is currently a trustee on its Endowment Committee. As a trustee for the Opera Theatre of St. Louis, he serves on the Institutional Development Committee and previously served as a vice chairman. Mr. Neidorff serves as Treasurer of the Kennedy Center Board of Trustees and member of the International Committee on the Arts. Mr. Neidorff previously served the John F. Kennedy Center for the Performing Arts as a 2005 trustee, vice chairman of its Fund Board, chairman of the Education Committee, and co-chair of the International Committee on the Arts.


Mr. Neidorff’s strategic business model remains purposeful, methodical and disciplined. As a leader in the industry, Mr. Neidorff insists on sound contracting principles, reliable information technology systems, appropriate human resource development, and succession planning for the long-term vitality of Centene. He is committed to building a leading multi-national healthcare enterprise, not just building health plans.


Mr. Neidorff was raised in Altoona, Pennsylvania. He holds a bachelor’s degree from Trinity University and a master’s degree from St. Francis College. He and his wife, Noémi Neidorff, have two children and have lived in St. Louis since 1985.