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    v1.0.28
    OpenPayerStatesHawaii
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    Hawaii Health Insurance Market Analysis: Market Share, Payer Mix, and Coverage Trends

    Hawaii's health insurance market is dominated by Hawaii Medical Service Association and Kaiser Foundation Group, with a highly concentrated payer landscape. The majority of residents are covered by employer-based private insurance, supported by a strong regional regulatory framework.

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    State Overview

    Hawaii has a total population of 1.39M residents and comprises 5 counties. The private insurance penetration rate is 75.36%, reflecting a high level of coverage among the population. The estimated members covered by Hawaii Medical Service Association, the state's largest insurer, is 462K.

    Insurance Market

    RankInsurerPremium WrittenEstimated Members CoveredMarket Share
    1Hawaii Medical Service Association$4.42B461.6K44.26%
    2Kaiser Foundation Group$2.04B212.9K20.41%
    3UnitedHealth Group$1.24B12.9K12.40%
    4Centene Corporation Group$565M5.79K5.66%
    5Aloha Care

    Frequently Asked Questions

    References

    1. 1.S2703: Private Health Insurance Coverage by Type and Selected Characteristics. U.S. Census Bureau, 2024 American Community Survey 5-Year Estimates. Retrieved Aug 11, 2026.Annual estimates of private health insurance coverage rates by state, broken out by age, income, and plan type — the basis for this page's coverage-rate figures.
    2. 2.2024 Market Share Reports for the Top Accident and Health Insurance Groups and Companies by State and Countrywide. National Association of Insurance Commissioners (NAIC). Retrieved Aug 11, 2026.Ranks the largest accident and health insurance carriers by direct premiums written in each state, used to identify the dominant payers operating there.
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    Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

    Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

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    $469M
    4.90K
    4.70%
    6University Health Alliance$372M3.89K3.73%
    7Humana Group$290M3.03K2.90%
    8Hawaii Management Alliance Assn$228M2.38K2.28%
    9Devoted Health Group$68.6M7220.69%
    10CVS Group$30.8M3240.31%

    Hawaii Medical Service Association is the clear market leader, with a market share exceeding 44%. Kaiser Foundation Group is the second largest, holding just over 20% of the market. These two insurers together cover a majority of Hawaii's privately insured population, reflecting a highly concentrated payer landscape.

    UnitedHealth Group, Centene Corporation Group, and Aloha Care are the next largest insurers, but their market shares are considerably smaller. The remaining payers each account for less than 4% of the market individually, indicating limited competition beyond the top two. The overall market is shaped by the strong presence of regional and national insurers, with HMSA and Kaiser Foundation Group setting the pace for coverage and reimbursement in Hawaii.

    Insured Population Demographics

    Coverage TypeCountShare of Privately Insured
    Employer-Based618.6K59.33%
    Direct-Purchase70.4K6.75%
    TRICARE51.3K4.92%
    CHIP/Subsidized15.0K1.44%

    Hawaii's privately insured population is predominantly covered through employer-based plans, which account for nearly 60% of all private insurance. Direct-purchase coverage and TRICARE represent smaller but notable segments, while CHIP/subsidized coverage forms a minor share of the market.

    The demographic profile of Hawaii's privately insured population reflects a strong reliance on employer-sponsored insurance, consistent with the state's robust labor market and unique Prepaid Health Care Act. The presence of TRICARE and CHIP indicates additional coverage options for military families and children, but these remain secondary to employer-based coverage.

    Market Dynamics

    Hawaii's health insurance market is characterized by a high degree of concentration, with Hawaii Medical Service Association (HMSA) holding a dominant position. HMSA alone accounts for over 44% of the market, followed by Kaiser Foundation Group at just over 20%. Together, these two insurers control nearly two-thirds of the state's private health insurance market, underscoring the limited competition and strong regional presence of these payers.

    UnitedHealth Group, Centene Corporation Group, and Aloha Care round out the top five, but their combined market share is significantly less than the two leading insurers. The remaining payers, including University Health Alliance, Humana Group, Hawaii Management Alliance Association, Devoted Health Group, and CVS Group, each hold less than 4% individually, further highlighting the dominance of HMSA and Kaiser.

    The insured population in Hawaii is largely composed of individuals covered by employer-based plans, reflecting the state's employment landscape and regulatory environment. Direct-purchase and TRICARE options provide additional avenues for coverage, but their shares are modest compared to employer-based insurance.

    Age band data shows a relatively balanced distribution across working-age adults, with notable representation in the 35-44, 45-54, and 55-64 brackets. The presence of substantial numbers in the younger and older age bands suggests a broad reach of private insurance across the population, supporting access for both families and retirees.

    Top 10 Health Insurers by Market Share in Hawaii
    Privately Insured Population by Age Band in Hawaii