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Healthcare Insights

Top healthcare insurance companies by incurred claims

Hospital revenue sources break down into a payor mix of private insurance companies and government insurance programs like Medicare and Medicaid.

The percentage of the total payor mix from private/self-pay revenue reached 67.5% in 2023, reflecting market dynamics like private insurance companies compensating hospitals at a higher rate than government programs and increasing Medicare Advantage enrollment.

How are the top-performing health insurance companies measured?

Some of the key metrics related to the performance of health insurance companies include:

  • Annual revenue
  • Member enrollment or covered lives
  • Claims volumes and total values
  • Premiums earned

Different health insurance companies may be considered top performers depending on the metric considered. For example, UnitedHealthcare had the fourth-highest direct premium earned and total incurred claims in 2023, but the second-highest total covered lives.

The Definitive Healthcare ConnectedCareView product tracks key metrics on over 1,200 payor and payor subsidiary organizations. Financial data for health insurance payors is sourced from the Centers of Medicare and Medicaid Services’ (CMS) Consumer Information and Oversight (CCIIO) Medical Loss Ratio reports for calendar year 2023, the most recent full year of data available at the time of publishing.

What are total incurred claims?

The total incurred claims metric in ConnectedCareView represents direct claims paid to or received by physicians and other clinical providers, including under capitation contracts with those providers, whose services are covered by the policy for clinical services or supplies covered by the policy.

The following list highlights the top 20 payors (excluding payor subsidiaries) based on total incurred claims for calendar year 2023, the most recent full year of data available.

Top 20 healthcare insurance companies by total incurred claims

RankDefinitive IDPayor nameState Total incurred claims Total covered lives Explore dataset
1583130Kaiser Permanente Health PlansCA $58,832,856,022 8,723,660 Explore
2853221Health Care Service Corporation GroupIL $41,872,722,552 6,342,013 Explore
3575957Elevance Health (FKA Anthem Blue Cross & Blue Shield)IN $41,870,499,701 6,310,921 Explore
4583151UnitedHealthcare (AKA UnitedHealth Group)MN $40,020,680,890 8,089,244 Explore
5575895Centene CorporationMO $25,876,441,114 4,590,073 Explore
6552393AetnaCT $24,920,046,319 4,199,983 Explore
7552479Guidewell Mutual Holding Group (FKA Blue Cross and Blue Shield of Florida)FL $20,730,527,025 2,689,899 Explore
8552436Cigna Healthcare (FKA Cigna)CT $17,713,190,258 2,642,647 Explore
9552477Blue Shield of CaliforniaCA $16,409,267,260 2,229,812 Explore
10552480HighmarkPA $9,357,929,900 1,303,718 Explore
11575917CareFirst BlueCross BlueShieldMD $8,974,000,288 1,354,612 Explore
12552472BlueCross BlueShield of Michigan GroupMI $8,789,849,521 1,470,528 Explore
13957723Oscar Insurance CorporationNY $6,979,693,249 2,104,607 Explore
141041823BlueCross Blue Shield of NC GroupNC $6,600,036,728 1,104,290 Explore
15575753BlueCross BlueShield of Massachusetts GroupMA $6,423,950,407 838,143 Explore
16553215Horizon Blue Cross Blue Shield of New JerseyNJ $6,121,872,742 749,563 Explore
171057866BlueCross BlueShield of Alabama GroupAL $6,012,434,880 917,859 Explore
18829067Cambia Health SolutionsOR $5,324,924,136 918,286 Explore
191061661Independence Health Group IncPA $4,202,817,444 760,957 Explore
20575946BlueCross BlueShield of South Carolina GroupSC $3,815,531,018 610,789 Explore

Fig. 1 Data is from the Definitive Healthcare ConnectedCareView product and sourced from the CMS Consumer Information and Oversight (CCIIO) Medical Loss Ratio reports. The most recent data is from calendar year 2023. Accessed April 2026.

What is the largest healthcare payor by incurred claims?

Kaiser Permanente Health Plans had the highest incurred claims at more than $58.8 billion. Kaiser Permanente is one of the largest healthcare systems in the U.S. and predominately based in the western U.S. with many hospitals in California. The state’s high population likely contributes to the high patient count for the health plans. Kaiser Permanente operates a unique model in which they offer patient care services in addition to health insurance coverage.

Health Care Service Corporation Group and Elevance Health (formerly known as Anthem Blue Cross & Blue Shield) both had approximately $41.9 billion in incurred claims, followed by UnitedHealthcare, with $40 billion in total incurred claims reported.

How incurred claims reflect market influence

Total incurred claims can be understood as shares of healthcare spend—insurers with higher incurred claims control larger shares of overall health spending by consumers and employers, and thus exert broader influence over the market.

Biopharma and medtech organizations can target payors with higher incurred claims to improve market access and attain broader formulary reach. Providers and investors may leverage incurred claims to identify reimbursement concentration or track payor positioning within specific markets.

Learn more

Healthcare Insights are developed with data from the Definitive Healthcare product portfolio and from CMS. Want even more insights? Start a free trial now and get access to the latest intelligence on hospitals, physicians, and other healthcare providers.