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.
| Rank | Definitive ID | Payor name | State | Total incurred claims | Total covered lives | Explore dataset |
|---|---|---|---|---|---|---|
| 1 | 583130 | Kaiser Permanente Health Plans | CA | $58,832,856,022 | 8,723,660 | Explore |
| 2 | 853221 | Health Care Service Corporation Group | IL | $41,872,722,552 | 6,342,013 | Explore |
| 3 | 575957 | Elevance Health (FKA Anthem Blue Cross & Blue Shield) | IN | $41,870,499,701 | 6,310,921 | Explore |
| 4 | 583151 | UnitedHealthcare (AKA UnitedHealth Group) | MN | $40,020,680,890 | 8,089,244 | Explore |
| 5 | 575895 | Centene Corporation | MO | $25,876,441,114 | 4,590,073 | Explore |
| 6 | 552393 | Aetna | CT | $24,920,046,319 | 4,199,983 | Explore |
| 7 | 552479 | Guidewell Mutual Holding Group (FKA Blue Cross and Blue Shield of Florida) | FL | $20,730,527,025 | 2,689,899 | Explore |
| 8 | 552436 | Cigna Healthcare (FKA Cigna) | CT | $17,713,190,258 | 2,642,647 | Explore |
| 9 | 552477 | Blue Shield of California | CA | $16,409,267,260 | 2,229,812 | Explore |
| 10 | 552480 | Highmark | PA | $9,357,929,900 | 1,303,718 | Explore |
| 11 | 575917 | CareFirst BlueCross BlueShield | MD | $8,974,000,288 | 1,354,612 | Explore |
| 12 | 552472 | BlueCross BlueShield of Michigan Group | MI | $8,789,849,521 | 1,470,528 | Explore |
| 13 | 957723 | Oscar Insurance Corporation | NY | $6,979,693,249 | 2,104,607 | Explore |
| 14 | 1041823 | BlueCross Blue Shield of NC Group | NC | $6,600,036,728 | 1,104,290 | Explore |
| 15 | 575753 | BlueCross BlueShield of Massachusetts Group | MA | $6,423,950,407 | 838,143 | Explore |
| 16 | 553215 | Horizon Blue Cross Blue Shield of New Jersey | NJ | $6,121,872,742 | 749,563 | Explore |
| 17 | 1057866 | BlueCross BlueShield of Alabama Group | AL | $6,012,434,880 | 917,859 | Explore |
| 18 | 829067 | Cambia Health Solutions | OR | $5,324,924,136 | 918,286 | Explore |
| 19 | 1061661 | Independence Health Group Inc | PA | $4,202,817,444 | 760,957 | Explore |
| 20 | 575946 | BlueCross BlueShield of South Carolina Group | SC | $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.
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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.