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Centene Corporation

Founders

Who Founded Centene?

Elizabeth "Betty" Brinn · Founded 1984 · HQ today: St. Louis, Missouri

Who founded Centene?

Centene was founded by Elizabeth "Betty" Brinn in 1984. It is now led by Sarah M. London.

Founders
Elizabeth "Betty" Brinn
Founded
1984
Headquarters
St. Louis, Missouri
Number of founders
1
Current CEO
Sarah M. London (since 2022)
Where was Centene founded?
Centene was founded in St. Louis, Missouri in 1984.
When was Centene founded?
Centene was founded in 1984.
Who started Centene?
Centene was founded by Elizabeth "Betty" Brinn.
How old is Centene?
Centene is 42 years old as of 2026.

Founding Story

In 1984, Elizabeth "Betty" Brinn, a former hospital bookkeeper, founded a nonprofit Medicaid plan in Milwaukee called Family Hospital Physician Associates, named for the hospital that housed its first offices. The plan coordinated care for Medicaid members who often struggled to find doctors willing to accept low government payments. After Brinn's death the plan was converted into a for-profit company, renamed Centene in 1997, moved to St. Louis and scaled nationally under Michael Neidorff.

Background

Elizabeth "Betty" Brinn worked as a hospital bookkeeper in Milwaukee before founding the Medicaid plan that became Centene. That administrative experience, and a focus on low-income families, shaped the plan's original mission.

Role at Centene Corporation

Elizabeth "Betty" Brinn founded Centene's predecessor in 1984 in Milwaukee, Wisconsin. A former hospital bookkeeper, she launched Family Hospital Physician Associates as a nonprofit Medicaid plan, operating from offices in Family Hospital. Its purpose was to coordinate care for Medicaid members, many of them low-income mothers and children, who had trouble finding doctors willing to accept Medicaid's low payment rates and often relied on emergency rooms for routine care. After Brinn's death, the nonprofit was sold to investors and the proceeds went to the Betty Brinn Foundation. The business was renamed Centene in 1997 and, under Michael Neidorff, grew into a national managed care company. Milwaukee's Betty Brinn Children's Museum carries her name. (Exact birth year remains publicly undisclosed).

Centene Corporation: CEO & Leadership History

Full timeline →

Sarah M. London

Chief Executive Officer

2022 – Present

Sarah M. London has been Centene's CEO since March 2022, after joining the company in 2020 and serving as Vice Chairman. She has narrowed Centene's focus to U.S. government-sponsored health plans, sold non-core assets and outsourced pharmacy benefit management. Her tenure has been tested by post-pandemic Medicaid redeterminations, the July 2025 Marketplace risk-adjustment shock and the resulting FY2025 loss, followed by a return to profitability in 2026, when Centene raised its adjusted EPS guidance to above $4.80. Before Centene she held leadership roles at Optum.

Michael F. Neidorff

Former Chief Executive Officer

1996 – 2022

Michael F. Neidorff led Centene from 1996 to 2022, turning a small Medicaid plan into a national managed-care company. He took Centene public in 2001 and drove its expansion through acquisitions including Health Net (2016), Fidelis Care (2018) and WellCare (2020), making it the largest Medicaid managed care organization in the U.S. His pay drew criticism in later years. He stepped down as CEO in March 2022 and died in April 2022.

Keep researching Centene

Who Founded Centene? FAQ

Who founded Centene and what was the company's original name?

Centene was founded in 1984 by Elizabeth "Betty" Brinn, a former hospital bookkeeper, as Family Hospital Physician Associates, a nonprofit Medicaid plan in Milwaukee named for the hospital that housed its first offices.

What inspired Betty Brinn to establish the health plan in 1984?

Betty Brinn set up the plan to coordinate care for Medicaid members, many of them low-income mothers and children, who had trouble finding doctors and relied on emergency rooms for routine care.

When did Michael Neidorff join the company and rename it Centene?

Michael Neidorff became CEO in 1996. The company was renamed Centene Corporation in 1997 and moved its headquarters to St. Louis, Missouri.

When did Centene complete its initial public offering (IPO)?

Centene completed its initial public offering on the New York Stock Exchange in December 2001 under ticker symbol CNC, raising capital to fund multi-state Medicaid expansion across the United States.

What philanthropic legacy honours founder Betty Brinn today?

The Betty Brinn Children's Museum in Milwaukee, Wisconsin, was established in 1995 to honor her legacy of advocating for early childhood education, health literacy, and family wellness in underserved communities.

How did the early founders establish the local community care model?

Centene's state plans have long relied on local staff, case managers and community partners in the markets they serve, an approach the company still describes as local-first.

What happened to the nonprofit after Betty Brinn's death?

After Brinn's death, the nonprofit was sold to investors and the proceeds went to the Betty Brinn Foundation, which became a major Centene shareholder. The business then expanded beyond Wisconsin under Michael Neidorff.

What is the lasting legacy of Centene's founders on modern US healthcare?

Centene's founders demonstrated that Medicaid managed care could be operated ethically, compassionately, and efficiently at scale, creating the nation's largest safety-net healthcare delivery system.

Who founded Centene?

The original non-profit predecessor was founded in 1984 by Elizabeth Brinn, a former hospital bookkeeper who wanted to create a health plan specifically for low-income patients in Milwaukee.

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Content is for informational purposes only. Not financial advice. Data sourced from SEC filings, annual reports, and public records. See our full disclaimer and methodology.