privateFinancial Strength: bb- (holding company ICR)Online Signup

Centene Corporation

40Score

★★★☆☆3.0

Customer satisfaction · 27.6M members

AM Best: bb- (Holding Company ICR)(2025)

Centene is the largest Medicaid managed care organization in the US with approximately 27.6 million members. Operating through subsidiaries including WellCare and Ambetter (ACA marketplace), it focuses on underserved and low-income populations with presence in all 50 states.

Overall Score

40/100

Founded

1984

Headquarters

St. Louis, Missouri

Type

private

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Key Metrics

Am Best Rating

bb- (holding company ICR)

Network Size

All 50 states via subsidiaries

Market Share

6.7%

Fortune500 Rank

#23 (2025)

Editorial Ratings

AM Best: bb- (Holding Company ICR)(2025)

Rating: ICR of "bb-" (holding company level) (max: A++ (Superior))

40AM

Coverage Highlights

✓Largest Medicaid managed care organization in the US
✓Ambetter: one of the most widely available ACA marketplace brands
✓Presence in all 50 states through subsidiaries
✓WellCare subsidiary for Medicare and Medicaid plans
✓Fortune 500 ranked #23 (2025)

Pros

✓Dominant position in Medicaid managed care
✓Extensive geographic reach (all 50 states)
✓Ambetter provides affordable ACA marketplace options
✓Growing Medicare Advantage presence

Cons

✗Medicaid focus means narrow provider networks in many areas
✗Customer complaints about claims processing
✗Lower financial strength ratings at holding company level
✗Provider reimbursement rates are often low

Frequently Asked Questions

What is Centene's main focus?

Centene specializes in Medicaid managed care for low-income and underserved populations. It is the largest Medicaid managed care organization in the US.

What is Ambetter?

Ambetter is Centene's ACA marketplace brand, offering affordable health insurance plans on state exchanges. It is one of the most widely available ACA marketplace brands in the country.

Is Centene available nationwide?

Yes. Through its subsidiaries (WellCare, Ambetter, and others), Centene operates in all 50 states.

Quick Summary

InsurerCentene Corporation

Country🇺🇸 United States

Overall Score40/100

Satisfaction3.0/5

Members27.6M

Typeprivate

Founded1984

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