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    ASCENSION HLTH GRP Market Analysis: Market Share and Coverage by State

    Ascension Hlth Grp is a regionally focused health insurer that concentrates premium and membership in a small set of states, offering targeted contracting opportunities for providers. Its footprint is driven by a few strong state markets rather than broad nationwide scale.

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    Payer Overview

    Ascension Hlth Grp is the #141 largest US A&H payer by reported premium, writing $273.95M of premium in the US market and holding a 0.02% US market share. The company reports operations across 5 states and DC-equivalent reporting scope, with an Estimated Total Members count of 38.3K, and it operates through 3 affiliated subsidiaries.

    Ascension Hlth Grp's footprint is concentrated in a handful of states with a particularly large presence in Texas, and the distribution of premium and membership suggests regional contracting strength rather than a broad national scale. The payer does not hold a #1 position in any state.

    Premium & Market Share

    Premium by Scope

    Ascension Hlth Grp's premium is exclusively in the US states and DC reporting scope based on the provided data; there are no reported premiums in US territories or foreign jurisdictions. This concentration means provider groups negotiating with Ascension Hlth Grp should prioritize understanding its state-level contracting dynamics, particularly in the states where premium is concentrated. The absence of territory or foreign exposure simplifies national contracting strategy because all risk and reimbursement arrangements are domestic.

    2 rows

    ScopeJurisdictionsPremiumShare of Payer Total
    US States & DC5$273.95M100.00%
    Total5$273.95M100.00%

    Subsidiary Filings

    3 rows

    SubsidiaryDomicile
    Seton Health Plan IncTX
    Seton Insurance Company—
    Us Health & Life Insurance Company IncMI

    National Market Presence

    National Market Footprint

    Ascension Hlth Grp's premium is highly concentrated in Texas, which accounts for the vast majority of its US premium at $231.76M. The remainder of premium is split across Tennessee, Kansas, Indiana, and Michigan, each representing comparatively small pockets of membership. For national provider contracting, this concentration means negotiating leverage will vary greatly by state: network terms in Texas will drive the most member access and utilization, while the smaller-state relationships are likely to require bespoke arrangements.

    Geographically, the payer’s strongest position is in the South and Midwest with the largest exposure in the Southwest/South (Texas and Tennessee) and select Midwestern states (Kansas, Indiana, Michigan). Providers pursuing multi-state contracts should prioritize capabilities in Texas given its dominant premium share, and treat the smaller-state presences as targeted opportunities to expand network breadth.

    6 rows

    StateMarket SharePremium WrittenEstimated Members
    National Total—$273.95M38.3K
    IN0.03%$7.78M1.25K
    KS0.08%$11.1M1.78K
    MI0%$1.53M0.22K
    TN0.07%$21.8M3.30K
    TX0.16%$231.76M31.7K
    Market Share by State — ASCENSION HLTH GRP

    State-by-State Market Position

    Ascension Hlth Grp shows a concentrated regional presence rather than broad national coverage. The strongest single-state position is in Texas, followed by meaningful but much smaller positions in Tennessee and Kansas, and modest footprints in Indiana and Michigan. This distribution indicates the payer functions as a regional incumbent in parts of the South and Midwest.

    For multi-state provider groups, the geographic clustering implies that gaining scale with Ascension Hlth Grp requires a primary focus on Texas operations to capture the bulk of members and premium. Smaller operations in Kansas, Tennessee, Indiana, and Michigan can be useful for extending network reach, but will not substitute for strong Texas contracting given the gulf in premium scale (Texas at versus the next largest state at ).

    About ACA Marketplace Data

    The Affordable Care Act (ACA) established federally-facilitated health insurance marketplaces ("exchanges") where individuals and small businesses can shop for and enroll in health plans, often with income-based subsidies. Issuers that participate in these marketplaces are required to report enrollment, claims, and denial data to CMS (Centers for Medicare & Medicaid Services) each year.

    The sections below cover this payer's ACA marketplace-specific footprint — enrollment, plan portfolio, and claims/denial-rate data. This is a narrower, separate population from the NAIC-based commercial data shown earlier on this page (total premium, market share, and membership across all lines of business): ACA marketplace enrollment is typically a small fraction of a payer's total commercial book, and the two datasets should not be treated as equivalent. CMS claims-transparency reporting has also been inconsistent industry-wide since 2020 — many issuers have little or no data for 2021 onward, so a single reporting year is common and does not necessarily indicate anything about the payer's current ACA presence.

    Member Demographics

    Estimated Member Demographics

    Nationally, the largest age bands are 6–18 (6,402 members), 35–44 (5,885 members), and 45–54 (5,455 members), indicating a strong presence among children, adolescents, and working-age adults. The senior population (65+) is comparatively smaller, with only 2,530 in the 65–74 band and 1,690 in the 75+ band.

    Texas, the payer's largest market, mirrors the national distribution, with the highest counts in the 6–18, 35–44, and 45–54 bands. Michigan, with the smallest member count, has a similar age distribution but much lower absolute numbers. No state shows a pronounced skew toward older or younger populations, though Texas's size amplifies all age bands.

    6 rows

    State<66-1819-2526-3435-4445-5455-6465-74>75
    National Total2.5K6.4K3.7K5.1K5.9K5.5K5.0K2.5K1.7K
    IN772081271521721721749770
    KS118309185210247223242141101
    MI133321252829322216
    TN195498317426459472477265186
    TX2.1K5.4K3.1K4.3K5.0K4.6K4.1K2K1.3K
    Estimated Members by Age Band — ASCENSION HLTH GRP

    Related Subsidiaries

    SETON-HEALTH-PLAN-INC-95240

    Seton Health Plan Inc

    Coming soon

    SETON-INSURANCE-COMPANY-15906

    Seton Insurance Company

    Coming soon

    US-HEALTH-LIFE-INSURANCE-COMPANY-INC-97772

    Us Health & Life Insurance Company Inc

    Coming soon

    References

    1. 1.2024 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 nationwide and by state, the source for this payer's market share and direct-premium figures.
    2. 2.Health Insurance Exchange Public Use Files (Exchange PUFs). Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.Plan-level enrollment, premium, and cost-sharing data submitted by issuers participating in the ACA Marketplace, the source for this payer's exchange presence figures.
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    $231.76M
    $21.78M

    Estimated Members by State

    ASCENSION HLTH GRP's estimated member distribution is highly concentrated in Texas, which accounts for 31,715 of the total 38,257 members nationally. Tennessee follows with 3,295 members, Kansas with 1,777, Indiana with 1,250, and Michigan with 219. This geographic concentration means that nearly 83% of the payer's insured population is located in Texas.

    This member distribution aligns closely with the payer's market share and premium volume, as Texas is also the state with the highest market share (0.16%) and premium written ($231,757,890). The other states have much smaller member counts and premium volumes, reflecting ASCENSION HLTH GRP's limited footprint outside Texas. For providers, this means that contracting and care delivery strategies should be heavily focused on Texas, with only niche considerations for the other states.

    Premium Written by State — ASCENSION HLTH GRP ($)
    Estimated Members by State — ASCENSION HLTH GRP