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Medicare Advantage Enrollment Tracker

Centene/Wellcare Medicare Advantage Enrollment

In September 2026, Centene/Wellcare had 913,730 Medicare Advantage members, down 38,526 from September 2025. That is 2.5% of members with a carrier label, sixth among carriers. Its share edged down 0.2 points since September 2025.

Data as ofCMS contract file

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

    Carrier shares: all Medicare Advantage contracts, including employer group, from the CMS contract file. Share is of members with a carrier label. This file and the state file give different totals, so these shares do not apply to state or county member counts.

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

    Missing months: July 2023 and December 2023 are absent from the state and county file; July 2023 is absent from the contract file. Lines break at a gap. Nothing is filled or averaged across it. Year-over-year changes compare the same calendar month, so July 2023 and December 2023 cannot be compared.

  • Some contracts have no carrier name.
    Why this matters

    Insurer not assigned in CMS data: 0.6% of members in September 2026 (225,918), against 10.7% in January 2023. These are mostly retired contracts with no carrier label. Shares divide by members with a label so old and new months compare. When the unassigned bucket is above 3% in either month, treat share changes as rough.

  • Shares jump each January. Compare same months.
    Why this matters

    Counts and shares step at each January, when plan-year contracts and annual elections take effect. A 12-month change is mostly one January step plus drift. CMS posts January counts late, so compare November with February or March, not January alone.

By Senior Deal Club Standards Desk. Editorial policy. Methodology. Senior Deal Club is not affiliated with Medicare or any government agency. This page is educational. It counts members. It does not rate plans.

Centene/Wellcare did not lead any state and held under 20% in each state where it has 1,000 or more members.

Shares are of members whose contract has a carrier label, from the CMS contract file. The file includes employer group plans. Source: CMS, September 2026.

Centene/Wellcare at a glance

Share of labelled members

2.5%

down 0.2 percentage points vs September 2025

September 2026, rank 6 among carriers

Members

913,730

September 2026, contract file

States led

0

Areas where Centene/Wellcare had the most labelled members, September 2026

National share against nearby carriers

Centene/Wellcare and the carriers ranked just above and below it, January 2023 to September 2026.

Centene/Wellcare share of members

Percent of members with a carrier label, monthly

Contract file · September 2026
CMS contract file. Includes employer group plans. Share divides by members with a carrier label.
Centene/Wellcare share of membersLine chart, January 2023 to September 2026. Centene/Wellcare: 2.5% in September 2026. Elevance/Anthem/BCBS: 5.2% in September 2026. HCSC/BCBS: 2.5% in September 2026. Kaiser Permanente: 5.7% in September 2026. Shaded bands mark months with no data.2%4%6%8%2023202420252026ABKaiser Permanente5.7%Elevance5.2%Centene/Wellcare2.5%HCSC/BCBS2.5%
Centene/Wellcare share of membersLine chart, January 2023 to September 2026. Centene/Wellcare: 2.5% in September 2026. Elevance/Anthem/BCBS: 5.2% in September 2026. HCSC/BCBS: 2.5% in September 2026. Kaiser Permanente: 5.7% in September 2026. Shaded bands mark months with no data.2%4%6%8%20232025ABKaiser5.7%Elevance5.2%Centene2.5%Blue Cross2.5%
  • Centene/Wellcare
  • Elevance/Anthem/BCBS
  • HCSC/BCBS
  • Kaiser Permanente
  • Shaded: no data that month
  1. Note A: July 2023: No contract-file data for July 2023.
  2. Note B: January 2026: January step: plan-year contract changes move members between carriers. Shares jump in this month.
View the data table
Centene/Wellcare share of members: values by month
MonthCentene/WellcareElevance/Anthem/BCBSHCSC/BCBSKaiser Permanente
Sep 20262.5%5.2%2.5%5.7%
Aug 20262.6%5.2%2.5%5.7%
Jul 20262.6%5.2%2.5%5.7%
Jun 20262.6%5.2%2.5%5.7%
May 20262.6%5.2%2.5%5.7%
Apr 20262.7%5.2%2.5%5.7%
Mar 20262.7%5.3%2.4%5.7%
Feb 20262.7%5.3%2.5%5.7%
Jan 20262.7%5.4%2.4%5.7%
Dec 20252.7%6.3%2.7%5.7%
Nov 20252.7%6.3%2.7%5.7%
Oct 20252.7%6.3%2.7%5.7%
Sep 20252.8%6.4%2.7%5.7%
Aug 20252.8%6.4%2.7%5.7%
Jul 20252.8%6.4%2.6%5.7%
Jun 20252.8%6.4%2.6%5.7%
May 20252.8%6.4%2.6%5.7%
Apr 20252.9%6.5%2.6%5.7%
Mar 20252.9%6.5%2.6%5.7%
Feb 20252.9%6.6%2.6%5.8%
Jan 20252.9%6.6%2.5%5.8%
Dec 20243.0%6.2%2.4%5.9%
Nov 20243.0%6.2%2.3%5.9%
Oct 20243.1%6.2%2.4%5.9%
Sep 20243.1%6.2%2.4%5.9%
Aug 20243.1%6.2%2.4%6.0%
Jul 20243.1%6.2%2.4%6.0%
Jun 20243.1%6.2%2.4%6.0%
May 20243.1%6.2%2.4%6.0%
Apr 20243.1%6.2%2.4%6.0%
Mar 20243.2%6.2%2.4%6.0%
Feb 20243.1%6.2%2.4%6.0%
Jan 20243.2%6.3%2.4%6.0%
Dec 20233.9%6.7%2.5%6.5%
Nov 20233.9%6.7%2.5%6.5%
Oct 20233.9%6.8%2.5%6.5%
Sep 20234.0%6.8%2.5%6.5%
Aug 20234.0%6.8%2.5%6.5%
Jul 2023––––
Jun 20234.1%6.9%2.5%6.5%
May 20234.1%6.9%2.5%6.5%
Apr 20234.1%6.9%2.5%6.6%
Mar 20234.2%6.9%2.5%6.6%
Feb 20234.2%7.0%2.5%6.6%
Jan 20234.4%7.1%2.5%6.7%

CMS contract file, September 2026. Share of members with a carrier label. Includes employer group plans.

Where Centene/Wellcare has members

States where Centene/Wellcare has 1,000 or more members, largest first. Share is of that state's labelled members in September 2026. Change is in percentage points since September 2025. States where a carrier is small may be missing: the data keeps each state's ten largest carriers and any carrier above 1%. A contract that serves several states carries one carrier label, so a carrier can show members in a state where it is not a local plan.

Centene/Wellcare members by state, September 2026
StateMembersShareRankChange since September 2025Note
New York162,7437.5%5down 1.1 percentage points
Texas108,3633.9%5down 0.9 percentage points
California82,2342.2%8down 0.9 percentage points
Florida49,0721.6%7down 0.4 percentage points
Illinois48,5824.5%5up 1.6 percentage points
Arizona46,6945.8%5up 0.2 percentage points
Kentucky39,5027.1%5down 0.3 percentage points
Oregon36,1656.9%6down 0.8 percentage points
Washington33,4134.3%5down 0.2 percentage points
Georgia32,0222.8%8down 0.6 percentage points
Michigan30,5612.1%7up 0.1 percentage points
South Carolina25,0144.2%6no change
Arkansas24,4987.5%4down 1.7 percentage points
Mississippi23,5337.9%4no change
Maine20,9359.1%6down 0.2 percentage points
Ohio15,9861.1%11up 0.2 percentage points
Iowa12,9744.9%6up 3.4 percentage points
New Jersey12,7711.7%7down 0.2 percentage points
Wisconsin12,7621.6%9up 0.5 percentage points
North Carolina12,4210.9%9up 0.1 percentage points
Connecticut12,1062.7%6up 0.4 percentage points
Indiana10,2661.4%8up 0.7 percentage points
Louisiana10,0931.8%5down 0.1 percentage points
Tennessee9,9711.2%8down 0.2 percentage points
Missouri7,0650.9%8up 0.1 percentage points
Nebraska5,2383.9%6up 0.4 percentage points
Delaware3,8874.7%5up 2.6 percentage points
Nevada3,2801.0%10up 0.4 percentage points
Kansas2,7461.4%7down 1.3 percentage points
Oklahoma2,3150.7%8no change
Hawaii1,9541.2%7down 1.1 percentage points

Gained or lost the lead

Leader by labelled members in each state, September 2025 against September 2026.

Centene/Wellcare did not gain or lose the lead in any state in the last 12 months.

Questions about Centene/Wellcare

How many people are in Centene/Wellcare Medicare Advantage plans?

913,730 members in September 2026, from the CMS contract file. The count includes employer group plans and is not limited to plans anyone can buy.

Is Centene/Wellcare gaining or losing Medicare Advantage members?

Its share of labelled members edged down 0.2 points between September 2025 and September 2026, from 2.8% to 2.5%. Members fell from 952,256 to 913,730. The data does not show why.

Where does Centene/Wellcare have the most members?

New York (162,743, 7.5% of that state's labelled members), Texas (108,363, 3.9% of that state's labelled members), and California (82,234, 2.2% of that state's labelled members) in September 2026.

Does this page show Centene/Wellcare plan prices or benefits?

No. It counts members and shares. For plan details, use the carrier or Medicare.gov. Senior Deal Club is not affiliated with Medicare or any government agency. This page is educational. It counts members. It does not rate plans.

Cite and download

Cite this page

Senior Deal Club Standards Desk. Centene/Wellcare Medicare Advantage Enrollment. Data as of September 2026. Source: CMS Medicare Advantage monthly enrollment, contract file. https://www.seniordealclub.com/medicare-advantage/enrollment/carriers/centene-wellcare

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