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Medicare Advantage Enrollment Tracker · West Virginia

Medicare Advantage Enrollment in West Virginia

West Virginia had 259,313 Medicare Advantage members in September 2026, by the CMS county file, which includes employer group plans. That is up 2.7% from Sep 2025, faster than the national 2.0%. West Virginia ranks 35th by members and holds 0.7% of the national total.

Humana leads with 48.9% of members who have a carrier label (contract file, September 2026). Among individual plans, which leave out employer group coverage, enrollment is up 4.6% in the 12 months to September 2026.

By Senior Deal Club Standards Desk · Data as of September 2026 · Editorial policy

Data as ofCMS public files, monthly snapshot

  • These totals include employer and union group plans.
    Why this matters

    The CMS contract and county files count group plans that retirees get through a former employer. They are not plans you can pick on your own. Counts here are larger than the individual-plan counts on county pages.

  • Some months are missing from the source.
    Why this matters

    CMS did not publish every month. Lines break at a missing month instead of guessing a value. A dotted line, where shown, only joins the two sides.

West Virginia at a glance

Medicare Advantage members

259,313

West Virginia members by month: from 219K in Jan 2023 to 259K in Sep 2026

County file · Sep 2026. Includes employer group plans. Rank: 35.

County file · Sep 2026
CMS state, county and plan-type file (SCP). The same plans split by state and county, with employer and union group plans included. CMS hides counts of 10 or fewer.

12-month change

+2.7%

up 2.7 percent vs Sep 2025

County file · Sep 2026. National: +2.0%.

Share of national total

0.7%

County file · Sep 2026. Of jurisdictions that report every month.

Individual plan members

173,904

Individual MA · Sep 2026. Employer group plans left out.

Individual MA · Sep 2026
Individual Medicare Advantage plans (IND), from county data. Employer and union group plans are left out, so counts are smaller than in the other two files.

Largest carrier

Humana

48.9% of members with a carrier label. Contract file · Sep 2026.

West Virginia members by month

Medicare Advantage members in West Virginia

Members, by month.

County file · Sep 2026
CMS state, county and plan-type file (SCP). The same plans split by state and county, with employer and union group plans included. CMS hides counts of 10 or fewer.
Medicare Advantage members in West VirginiaLine chart, January 2023 to September 2026. West Virginia: 259K in September 2026. Shaded bands mark months with no data.200K220K240K260K2023202420252026West Virginia259K
Medicare Advantage members in West VirginiaLine chart, January 2023 to September 2026. West Virginia: 259K in September 2026. Shaded bands mark months with no data.200K220K240K260K20232025West259K
  • West Virginia
  • Shaded: no data that month
View the data table
Medicare Advantage members in West Virginia: values by month
MonthWest Virginia
Sep 2026259K
Aug 2026260K
Jul 2026260K
Jun 2026259K
May 2026259K
Apr 2026259K
Mar 2026259K
Feb 2026259K
Jan 2026257K
Dec 2025253K
Nov 2025253K
Oct 2025253K
Sep 2025253K
Aug 2025253K
Jul 2025253K
Jun 2025253K
May 2025252K
Apr 2025252K
Mar 2025252K
Feb 2025251K
Jan 2025248K
Dec 2024244K
Nov 2024245K
Oct 2024244K
Sep 2024244K
Aug 2024244K
Jul 2024243K
Jun 2024243K
May 2024243K
Apr 2024242K
Mar 2024241K
Feb 2024241K
Jan 2024240K
Dec 2023–
Nov 2023231K
Oct 2023230K
Sep 2023229K
Aug 2023229K
Jul 2023–
Jun 2023227K
May 2023226K
Apr 2023225K
Mar 2023225K
Feb 2023224K
Jan 2023219K

County file · Sep 2026. Employer group plans included.

West Virginia and the nation, Jan 2023 = 100

Each line is members divided by members in the start month, times 100.

County file · Sep 2026
CMS state, county and plan-type file (SCP). The same plans split by state and county, with employer and union group plans included. CMS hides counts of 10 or fewer.
West Virginia and the nation, Jan 2023 = 100Line chart, January 2023 to September 2026. West Virginia: 118.4 in September 2026. National (same jurisdictions each month): 117.8 in September 2026. Shaded bands mark months with no data.1001051101151202023202420252026West Virginia118.4National117.8
West Virginia and the nation, Jan 2023 = 100Line chart, January 2023 to September 2026. West Virginia: 118.4 in September 2026. National (same jurisdictions each month): 117.8 in September 2026. Shaded bands mark months with no data.10010511011512020232025West118.4National117.8
  • West Virginia
  • National (same jurisdictions each month)
  • Shaded: no data that month
View the data table
West Virginia and the nation, Jan 2023 = 100: values by month
MonthWest VirginiaNational (same jurisdictions each month)
Sep 2026118.4117.8
Aug 2026118.6117.8
Jul 2026118.5117.5
Jun 2026118.5117.4
May 2026118.4117.2
Apr 2026118.4116.9
Mar 2026118.4116.7
Feb 2026118.4116.3
Jan 2026117.4114.7
Dec 2025115.4115.9
Nov 2025115.5115.9
Oct 2025115.5115.7
Sep 2025115.4115.5
Aug 2025115.6115.3
Jul 2025115.5115
Jun 2025115.4114.8
May 2025115.3114.4
Apr 2025115.2114.2
Mar 2025115113.8
Feb 2025114.8113.4
Jan 2025113.2111.9
Dec 2024111.7112
Nov 2024111.7112
Oct 2024111.6111.7
Sep 2024111.4111.5
Aug 2024111.3111.2
Jul 2024111.1110.9
Jun 2024111110.7
May 2024110.8110.5
Apr 2024110.4110
Mar 2024110.2109.7
Feb 2024110109.3
Jan 2024109.7108.7
Dec 2023––
Nov 2023105.4105.9
Oct 2023105.1105.6
Sep 2023104.7105.2
Aug 2023104.5104.9
Jul 2023––
Jun 2023103.7104.1
May 2023103.3103.8
Apr 2023103103.4
Mar 2023102.6103
Feb 2023102.3102.2
Jan 2023100100

County file · Sep 2026. National line sums the jurisdictions that report in every month.

Individual plans

Individual plans leave out employer and union group coverage, so counts are smaller than in the county file.

Carrier share in West Virginia

Share of members whose contract has a carrier label, September 2026 against September 2025.

Contract file · Sep 2026
CMS contract file (SCC). All Medicare Advantage contracts, with employer and union group plans included. It still lists Connecticut and Alaska.

Humana leads with 48.9% of members who have a carrier label (contract file, September 2026).

UnitedHealthcare lost 2.2 points in 12 months; most of that change came in January 2026.

Highmark/BCBS lost 3.5 points in 12 months; most of that change came in January 2026.

UnitedHealthcare and Humana together hold 63.9%, about the same as in Sep 2025.

The market is about as concentrated as a year earlier (direction only; the level depends on how carriers are grouped).

Carrier share, Sep 2025 to Sep 2026

Percent of members with a carrier label. Largest carriers.

Carrier share, Sep 2025 to Sep 2026Slope chart comparing Sep 2025 with Sep 2026. Humana: 47.1% to 48.9%; Aetna/CVS: 19.4% to 19.0%; UnitedHealthcare: 17.2% to 15.0%; Highmark/BCBS: 11.0% to 7.4%; West Virginia United Health System: 1.5% to 5.0%; The Health Plan of West Virginia: 2.6% to 3.2%.Sep 2025Sep 2026Humana 47.1%48.9% HumanaAetna/CVS 19.4%19.0% Aetna/CVSUnitedHealthcare 17.2%15.0% UnitedHealthcareHighmark/BCBS 11.0%7.4% Highmark/BCBSWest 1.5%5.0% WestThe Health Plan of … 2.6%3.2% The Health Plan of …
Carrier share, Sep 2025 to Sep 2026Slope chart comparing Sep 2025 with Sep 2026. Humana: 47.1% to 48.9%; Aetna/CVS: 19.4% to 19.0%; UnitedHealthcare: 17.2% to 15.0%; Highmark/BCBS: 11.0% to 7.4%; West Virginia United Health System: 1.5% to 5.0%; The Health Plan of West Virginia: 2.6% to 3.2%.Sep 2025Sep 2026Humana 47.1%48.9%Aetna 19.4%19.0%UHC 17.2%15.0%Blue Cross 11.0%7.4%UHC 1.5%5.0%The 2.6%3.2%
View the data table
Carrier share, Sep 2025 to Sep 2026: Sep 2025 and Sep 2026
NameSep 2025Sep 2026Change
Humana47.1%48.9%+1.8 pts
Aetna/CVS19.4%19.0%−0.4 pts
UnitedHealthcare17.2%15.0%−2.2 pts
Highmark/BCBS11.0%7.4%−3.5 pts
West Virginia United Health System1.5%5.0%+3.6 pts
The Health Plan of West Virginia2.6%3.2%+0.6 pts

Contract file · Sep 2026. Employer group plans included.

Carrier share of Medicare Advantage members with a carrier label, West Virginia, September 2026
CarrierShare, Sep 2026Share, Sep 2025ChangeMembers
Humana48.9%47.1%+1.8 pts119,245
Aetna/CVS19.0%19.4%−0.4 pts46,439
UnitedHealthcare15.0%17.2%−2.2 pts36,576
Highmark/BCBS7.4%11.0%−3.5 pts18,105
West Virginia United Health System5.0%1.5%+3.6 pts12,288
The Health Plan of West Virginia3.2%2.6%+0.6 pts7,698
Elevance/Anthem0.7%0.5%+0.3 pts1,818
SNP Holdings0.7%0.7%0.0 pts1,596
CareFirst/BCBS0.0%0.0%0.0 pts73
All other carriers0.0%––0
HCSC/BCBS–0.1%––

Insurer not assigned in CMS data: 5.5% of all members in Sep 2026, 5.9% in Sep 2025. Shares leave these members out. The unassigned share is above 3%, so treat share changes as rough. Contract IDs are renumbered each January, so this page follows carriers, not contracts. A contract that serves several states carries one carrier label, so a carrier can appear in a state where it is not a local plan. See the carrier view for the whole nation.

Biggest counties in West Virginia

Individual plan members and the 12-month change for each county, from county data.

Individual MA · Sep 2026
Individual Medicare Advantage plans (IND), from county data. Employer and union group plans are left out, so counts are smaller than in the other two files.
Biggest counties in West Virginia by individual Medicare Advantage members, September 2026
CountyMembers12-month changeLeading carrierLeader's share
Kanawha19,148+3.0%Humana40.2%
Berkeley9,512+7.2%Humana46.3%
Wood8,698+4.4%Humana39.7%
Cabell8,357+3.3%Humana35.6%
Mercer6,783+2.1%Humana39.2%
Harrison6,774+5.6%Humana39.8%
Raleigh6,294+3.2%Aetna/CVS45.5%
Putnam5,127+4.8%Humana37.8%
Monongalia5,019+6.1%Humana34.8%
Marion4,867+4.9%Humana41.0%

Browse all counties.

Common questions

How many people have Medicare Advantage in West Virginia?

West Virginia had 259,313 members in September 2026, by the CMS county file (employer group plans included). Individual plans, which leave out employer group coverage, had 173,904 members in September 2026.

Is Medicare Advantage growing in West Virginia?

Enrollment is up 2.7% from Sep 2025 to Sep 2026, faster than the national 2.0%. Among individual plans, which leave out employer group coverage, enrollment is up 4.6% in the 12 months to September 2026.

Which carrier has the most Medicare Advantage members in West Virginia?

Humana leads with 48.9% of members who have a carrier label (contract file, September 2026). UnitedHealthcare and Humana together hold 63.9%, about the same as in Sep 2025. Shares leave out members whose contract has no carrier label: 5.5% of members.

Cite and download

Cite this page

Senior Deal Club Standards Desk. Medicare Advantage Enrollment in West Virginia, data as of September 2026. Source: CMS public enrollment files. https://www.seniordealclub.com/medicare-advantage/enrollment/states/west-virginia

Download West Virginia CSV

Data: CMS public enrollment files, in a monthly snapshot processed by TapQuality. Senior Deal Club is not affiliated with Medicare or any government agency.

These pages are educational. They are not plan advice. How the numbers are built · Editorial policy