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    FreeTwo 2027 reports
    Medicare Advantage · Health Care Service Corporation · enrollment Oct 2026

    Health Care Service Corporation: 779K Medicare Advantage members in 31 states, leading 0.

    Health Care Service Corporation holds 2.6% of the country’s visible Medicare Advantage members, 7th among 165 carriers. Its largest state is Texas with 251,671 members and 11.1% share. Over twelve months it grew in 11 states and shrank in 20.

    Visible members
    779K
    Oct 2026
    National share
    2.6%
    7th of 165
    States
    31
    239 plans with members
    States led
    0
    first by visible members
    Growing in
    11
    states, twelve months
    Shrinking in
    20
    states, twelve months

    Health Care Service Corporation in every state it sells in

    Largest state first. Rank is among the carriers with visible members in the state; counties led counts counties where the carrier has the most visible members and another carrier is visible. A state with a link has a page on Health Care Service Corporation’s position there.

    StateMembersShareRankTwelve monthsCounties ledRating
    Texas251,671
    11.1%
    		3 of 23−4.5%83.46
    Tennessee80,906
    10.8%
    		4 of 12+3.4%83.49
    Arizona76,234
    10.8%
    		3 of 18+0.2%03.49
    Illinois52,590
    6.5%
    		4 of 11−16.0%03.15
    Alabama52,138
    9.3%
    		4 of 8+0.2%03.50
    Pennsylvania36,116
    2.6%
    		9 of 17−3.4%03.00
    New Mexico35,363
    17.2%
    		4 of 8−2.6%22.93
    Georgia33,329
    3.6%
    		6 of 13−4.6%23.04
    North Carolina32,153
    2.9%
    		6 of 14+14.9%03.00
    Ohio18,665
    1.5%
    		10 of 19+122.6%02.52
    South Carolina16,038
    2.9%
    		7 of 13+26.9%03.00
    Florida15,518
    0.5%
    		14 of 23−53.0%03.00
    Mississippi14,259
    5.1%
    		5 of 10−0.3%03.94
    Montana12,685
    17.3%
    		2 of 4−25.2%04.00
    Maryland10,084
    4.8%
    		7 of 10+1.1%03.00
    Arkansas6,692
    2.3%
    		6 of 9+37.7%03.47
    Oklahoma6,129
    1.9%
    		6 of 9−27.1%03.24
    New York4,377
    0.2%
    		16 of 22−83.3%03.00
    New Jersey3,483
    0.7%
    		9 of 12−64.7%03.00
    Kentucky3,482
    0.9%
    		7 of 10+457.1%02.50
    Colorado3,132
    0.7%
    		8 of 11−73.4%12.59
    Missouri3,009
    0.5%
    		9 of 12+2.7%02.87
    Delaware2,136
    3.2%
    		6 of 8−29.1%03.00
    Utah1,968
    0.8%
    		7 of 9−35.7%03.00
    Connecticut1,536
    0.4%
    		8 of 9−41.3%03.00
    Virginia1,499
    0.3%
    		8 of 10−1.5%03.00
    District of Columbia1,368
    4.7%
    		5 of 6+7.5%03.00
    Nevada959
    0.3%
    		11 of 14−6.2%03.50
    Washington681
    0.1%
    		13 of 14−22.9%03.98
    Kansas565
    0.3%
    		9 of 9−18.9%02.59
    Oregon493
    0.1%
    		15 of 15−70.9%03.86
    Carrier Command · for Medicare Advantage plans

    The read on Health Care Service Corporation in every state is in Carrier Command.

    Each state's position page on Health Care Service Corporation: risk and rebate against the market, Stars levers, the election-period forecast, exits and the county standing, rebuilt every month.

    Request early access See Carrier Command

    Other carriers

    The largest Medicare Advantage parents nationally, by visible members.

    All states and carriers

    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. Health Care Service Corporation is the parent organization Health Care Service Corporation; its plans may sell under other brand names in each state.
    • A state's twelve-month change, counties led and rating come from that state's page and carry its vintages.
    • 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.