Medicare Advantage Enrollment Tracker
Alignment Health Medicare Advantage Enrollment
In September 2026, Alignment Health had 297,874 Medicare Advantage members, up 70,167 from September 2025. That is 0.8% of members with a carrier label, 16th among carriers. Its share edged up 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.
Alignment Health 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.
Alignment Health at a glance
Share of labelled members
0.8%
September 2026, rank 16 among carriers
Members
297,874
September 2026, contract file
States led
0
Areas where Alignment Health had the most labelled members, September 2026
Where Alignment Health has members
States where Alignment Health 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.
| State | Members | Share | Rank | Change since September 2025 | Note |
|---|---|---|---|---|---|
| California | 236,691 | 6.4% | 5 | up 1.1 percentage points | |
| Nevada | 24,691 | 7.5% | 4 | up 2.9 percentage points | |
| North Carolina | 15,509 | 1.2% | 8 | up 0.5 percentage points | |
| Arizona | 10,419 | 1.3% | 11 | up 0.5 percentage points |
Gained or lost the lead
Leader by labelled members in each state, September 2025 against September 2026.
Alignment Health did not gain or lose the lead in any state in the last 12 months.
Questions about Alignment Health
How many people are in Alignment Health Medicare Advantage plans?
297,874 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 Alignment Health gaining or losing Medicare Advantage members?
Its share of labelled members edged up 0.2 points between September 2025 and September 2026, from 0.7% to 0.8%. Members rose from 227,707 to 297,874. The data does not show why.
Where does Alignment Health have the most members?
California (236,691, 6.4% of that state's labelled members), Nevada (24,691, 7.5% of that state's labelled members), and North Carolina (15,509, 1.2% of that state's labelled members) in September 2026.
Does this page show Alignment Health 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. Alignment Health Medicare Advantage Enrollment. Data as of September 2026. Source: CMS Medicare Advantage monthly enrollment, contract file. https://www.seniordealclub.com/medicare-advantage/enrollment/carriers/alignment-health
See all carriers on the carrier overview. Read the methodology and our editorial policy.