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    Medicare Advantage · New Hampshire · enrollment Oct 2026

    Medicare Advantage in New Hampshire: 83,788 members, 5 carriers, Humana in front.

    Humana holds 50.0% of New Hampshire’s visible Medicare Advantage members, ahead of UnitedHealth at 32.7% and Aetna (CVS) at 11.1%. The market shrank −14.0% (−13,581 members) from Nov 2025 to Oct 2026 and stepped −22.1% at the 2026 election period. 30.7% of the state's Medicare beneficiaries are in a Medicare Advantage plan.

    Visible members
    83,788
    Oct 2026
    Carriers
    5
    20 plans with members
    MA penetration
    30.7%
    of 363,841 eligible
    Twelve months
    −14.0%
    −13,581 members
    Election step
    −22.1%
    December to January 2026
    Top three
    93.9%
    HHI 3,736, highly concentrated

    Every carrier with members in New Hampshire

    Ranked by visible members in Oct 2026. The twelve-month change runs Nov 2025 to Oct 2026; the election step is the carrier’s own December-to-January change. Counties led counts counties where the carrier has the most visible members and at least one other carrier is visible. Humana leads 7 of the 10 counties with a lead. At the election period Humana stepped up most (+240.5%) and BMC Health System, Inc. stepped down most (−58.5%).

    #CarrierMembersShareTwelve monthsElection stepCounties ledRating$0 premiumPlans
    1Humana41,933
    50.0%
    +293.8%+240.5%7 of 104.1270%5
    2UnitedHealth27,403
    32.7%
    −27.9%−28.5%2 of 64.0973%8
    3Aetna (CVS)9,315
    11.1%
    −24.1%−38.8%0 of 23.08100%2
    4BMC Health System, Inc.ends every plan for 20275,095
    6.1%
    −50.6%−58.5%1 of 10––4
    5CareSource42
    0.1%
    ––0 of 2–100%1

    New Hampshire county by county

    10 counties with visible members, largest first. A county’s leader is the carrier with the most visible members there; a county with one visible carrier shows no leader, because the others are suppressed, not absent. Penetration is Medicare Advantage members as a share of the county’s Medicare beneficiaries.

    CountyVisible membersCarriersLeaderLeader shareMA penetrationDual eligibles
    Hillsborough26,7865UnitedHealth40.7%34.8%8,650
    Rockingham20,3115UnitedHealth40.3%30.9%4,723
    Merrimack9,7273Humana49.7%36.8%4,136
    Strafford9,1293Humana59.8%35.9%3,080
    Belknap4,9733Humana96.5%33.5%1,710
    Cheshire4,2453Humana88.3%25.0%1,985
    Grafton3,5542Humana86.0%21.7%1,853
    Coos2,7412Humana93.3%32.0%1,628
    Sullivan1,3692Humana70.3%17.5%1,341
    Carroll9532BMC Health System, Inc.98.3%12.2%1,204

    New Hampshire's twelve months

    Visible Medicare Advantage members in New Hampshire each month, Nov 2025 to Oct 2026. The December-to-January step is the election period; the rest of the year moves on new eligibles, special enrollment and deaths.

    Nov 2025 · 97,369Oct 2026 · 83,788

    What 2027 does to New Hampshire

    The fate assigned to every plan for 2027, joined to the members in it today. A plan that ends sends its members to choose again; a plan dropping counties keeps the plan but not every county, and which counties is not stated.

    Plans that end
    20,595

    members in New Hampshire are in plans that end for 2027; BMC Health System, Inc. ends every plan in the state.

    • Aetna (CVS)8,613
    • UnitedHealth6,887
    • BMC Health System, Inc. · every plan5,095
    Plans dropping counties
    15,952

    members are in plans that keep selling in New Hampshire but drop at least one county for 2027.

    • Humana · 2 plans14,733
    • Aetna (CVS) · 1 plans702
    • UnitedHealth · 1 plans517

    The plans on sale in New Hampshire for 2027

    Benefit design weighted by each plan’s members today, so a figure is what the market’s members are offered, not a count of plans. The rating is the 2027 overall Star Rating, weighted the same way.

    $0 premium
    71%

    of members are in a plan with no monthly premium

    In-network maximum
    $7,150

    median out-of-pocket maximum, member weighted

    Star Rating
    3.99

    2027 overall, member weighted

    Carrier Command · for Medicare Advantage plans

    The read on every carrier in New Hampshire is in Carrier Command.

    A monthly position page for each of the 5 carriers here: risk and rebate against the market, Stars levers, the election-period forecast, county standing and the written read. Launching for Medicare Advantage plans.

    How these numbers are made

    • Members are visible members: CMS suppresses any plan-county cell of ten or fewer, so small counties undercount. Market share excludes employer group plans.
    • Enrollment is Oct 2026; the twelve months run Nov 2025 to Oct 2026; the election step compares December 2025 with January 2026.
    • Plan fates are the ones assigned for contract year 2027; benefit design is the 2027 filing; the rating is the 2027 overall Star Rating of each carrier's contracts, weighted by members in New Hampshire.
    • A carrier is a parent organization; its brands in New Hampshire may carry other names. The rank 1st to 5th counts every parent with visible members in 2026.
    • Every figure comes from public CMS data as Livmor reads it, and the page is rebuilt when a new month posts. Livmor Carrier Command, public CMS data.