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    Medical Associates GRP Market Analysis: Market Share and Coverage by State

    Medical Associates GRP is a regional health insurer with concentrated Midwestern operations and a focused membership base. The payer plays a local contracting role rather than serving as a dominant national negotiator.

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    Payer Overview

    Medical Associates GRP is the #189 largest US A&H payer by reported premium, operating with a US premium of $130.31M and a US market share of 0.01%. The company reports a presence across 3 states, and serves an estimated total membership of 20K, operating through 2 affiliated subsidiaries. The payer does not hold a #1 position in any state.

    Medical Associates GRP's national footprint is concentrated in a small set of Midwestern states, and its scale positions it as a regional player rather than a national aggregator. This configuration affects negotiating leverage with large multi-state provider systems and favors localized network strategies tied to the company's core states.

    Premium & Market Share

    Premium by Scope

    Medical Associates GRP's premium is entirely within the US States & DC scope, representing the full $130.31M of reported premium. This concentration implies the payer's operational and contractual focus is domestic and tied to its small group of states. For providers, the lack of territorial or foreign exposure means negotiations and network design can be organized around US regulatory and reimbursement norms without additional territorial complexity.

    2 rows

    ScopeJurisdictionsPremiumShare of Payer Total
    US States & DC3$130.31M100.00%
    Total3$130.31M100.00%

    Subsidiary Filings

    2 rows

    SubsidiaryDomicile
    Medical Assoc Clinic Health Plan of WisconsinWI
    Medical Assoc Health Plan IncIA

    National Market Presence

    Medical Associates GRP shows a heavy concentration in the Midwest, with $82.5M of premium in IA and a combined Midwest premium of $130.31M across the three states. That concentration suggests contracting leverage is strongest in Iowa where the payer has its largest premium presence and membership base. Providers operating regionally should prioritize network negotiations and credentialing efforts in IA to maximize access to the payer's members.

    The payer's limited geographic footprint (3 states) reduces complexity for regionally focused provider groups but limits opportunities for national scale. Multi-state provider systems with ambitions beyond the Midwest will find limited exposure to this payer outside IA, WI, and IL, which may affect the value of pursuing systemwide contract terms with Medical Associates GRP.

    4 rows

    StateMarket SharePremium WrittenEstimated Members
    National Total—$130.31M20.0K
    IL0.02%$12.7M1.84K
    IA0.51%$82.5M12.4K
    WI0.13%$35.1M5.80K
    Market Share by State — Medical Associates GRP

    State-by-State Market Position

    Medical Associates GRP's strongest presence is in the Midwest, led by Iowa. The payer's top states are concentrated in a single Census region, which means its competitive dynamics are primarily shaped by regional market conditions rather than national trends. For multi-state provider groups, the distribution indicates that a focused Midwest contracting strategy will capture most of the payer's membership.

    Because the payer's premium and membership are concentrated in a small number of contiguous states, care network design, referral patterns, and utilization management can be coordinated regionally to align with the payer's footprint. Providers should expect the most impactful negotiations and referrals to occur in IA, with secondary considerations in WI and IL.

    Premium Written by State — Medical Associates GRP ($)

    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 (3,243 members) and 55–64 (2,878 members), followed by 35–44 (2,770 members). This indicates a strong presence among both pediatric and pre-retirement populations. Iowa, the state with the highest member count, mirrors this distribution, with substantial numbers in both younger and older age bands. Wisconsin and Illinois show similar patterns, though Illinois has a smaller overall member base.

    There is no significant skew toward older or younger populations in any single state, but Iowa's larger member base amplifies the impact of its age distribution. Providers should note the balanced mix of children, working-age adults, and seniors, with a slight emphasis on pediatric and pre-retirement care needs.

    4 rows

    State<66-1819-2526-3435-4445-5455-6465-74>75
    National Total1.2K3.2K2.0K2.3K2.8K2.6K2.9K1.7K1.2K
    IA7642.0K1.3K1.4K1.7K1.6K1.7K1.1K780
    IL111287172235267257260142104
    WI347921563674803772887488346
    Estimated Members by Age Band — MEDICAL ASSOCIATES GRP

    Estimated Members by State

    MEDICAL ASSOCIATES GRP's estimated member distribution is heavily concentrated in Iowa (12,385 members), followed by and . This geographic concentration aligns with the payer's market share, as Iowa is the only state where MEDICAL ASSOCIATES GRP holds a significant market position (), while Wisconsin and Illinois have much smaller shares and member counts.

    Related Subsidiaries

    MEDICAL-ASSOC-CLINIC-HEALTH-PLAN-OF-WISCONSIN-95782

    Medical Assoc Clinic Health Plan of Wisconsin

    Coming soon

    MEDICAL-ASSOC-HEALTH-PLAN-INC-52559

    Medical Assoc Health Plan 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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    Wisconsin (5,802 members)
    Illinois (1,835 members)
    51% share, rank 14

    The alignment between member counts and market share highlights Iowa as the primary focus for provider contracting and care delivery. Wisconsin, despite a lower market share, still represents a substantial member base, while Illinois is a distant third. Providers operating in these states should prioritize Iowa for network participation and care management strategies, given its outsized impact on the payer's overall member population. Multi-state providers will find the payer's footprint to be highly regional, with limited presence outside the Midwest, reducing the complexity of cross-state contracting for this payer's insured population.

    Estimated Members by State — MEDICAL ASSOCIATES GRP