Centene Company History Timeline


In 1996, Michael F. Neidorff joined the company as chief executive.


1997: The company is renamed Centene Corporation, and its corporate office is established in St Louis, Missouri.


On January 6, 1999, Envolve Pharmacy Solutions (formerly US Script) was formed to meet the demand for responsive pharmacy benefit management services that would proactively address client concerns and be flexible enough to meet future needs.


With more than 69 000 employees in more than 50 states, Centene Corporation is considered one of the top 2000 largest public companies in the world, according to Forbes.


2001: With three health plans, $327 million in revenue and 235,000 members, Centene becomes a publicly traded company.


2003: Adds Cenpatico, a behavioral health services company; Centene debuts on the New York Stock Exchange.


2004: Centene reports $1 billion in revenue; expands in Ohio as Buckeye Health Plan.


On January 1, 2006, Centene Corporation added Envolve Pharmacy Solutions to its specialty services division, CenCorp Health Solutions.

In 2006, the firm acquired US Scripte, a pharmacy benefits manager.


2008: Acquires Celtic Group, Inc., a commercial insurance product company.


2009: Expands into Florida and Massachusetts.


2010: Joins the FORTUNE 500 list of largest United States corporations by revenue; adds NovaSys Health in Arkansas.


2011: Adds Illinois and Mississippi health plans.

In 2011, the firm formed Centurion, a provider of correctional health care services, as a joint venture with MHM Services.


2012: Operations for correctional healthcare services begin.


2013: Grows to $10 billion in revenue and 2.7 million members.


2014: Ambetter brand introduced for Health Insurance Marketplace products; enters two international markets, Spain and the United Kingdom; adds United States Medical Management (USMM), an in-home health services company.

Centene began offering state-run Medicaid programs. through Affordable Care Act exchanges in 2014.


On July 2, 2015, Centene announced it would acquire Health Net.


2016: Acquires Health Net and launches the Envolve brand for specialty whole-health solution companies.


2017: Expands operational footprint in Nebraska, Nevada, Maryland and New York.

In the United Kingdom, Centene began to acquire local healthcare services in 2017.


2018: Adds Pennsylvania and New York health plans; launches the Allwell Medicare Advantage brand.

In 2018, it acquired MHM Services, including its stake in Centurion.


In March 2019, it announced plans to acquire WellCare for US$17.3 billion.

2019: Continued growth and innovation leads to being listed No.

In 2019, Centene, through its subsidiary MH Services, took a 40% stake in Circle Health, as part of a deal which created a national network of over 50 private hospitals.


2020: Combines with WellCare to create a premier healthcare enterprise serving more than 23 million members across all 50 states in the United States


On January 4, 2021, it was announced that it would acquire Magellan Health for $2.2 billion.


On January 4, 2022, the acquisition was completed.

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Centene History FAQs

How Old Is Centene?

Centene is 39 years old.

Who Is The Founder Of Centene?

Elizabeth Brinn founded Centene.

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Centene may also be known as or be related to CENTENE CORP, Centene and Centene Corporation.