Vermont Medicare Advantage market share
In September 2026, 19,663 Vermont Medicare beneficiaries were enrolled in a Medicare Advantage plan across 62 parent carriers and 14 counties, led by Humana Inc. with 40.3% of counted enrollment.
Data month
September 2026
Advantage enrollees
19,663
-61.2% vs September 2025
Parent carriers
62
Advantage penetration
32.5%
CMS Medicare Monthly Enrollment, 2024
Carriers in Vermont
CMS Monthly Enrollment by Contract/Plan/State/County (CPSC) · September 2026
| # | Parent organisation | Enrollees | Share | Counties | vs September 2025 |
|---|---|---|---|---|---|
| 1 | Humana Inc. | 7,930 | 40.3% | 14 | +170.7% |
| 2 | Health Care Service Corporation | 6,335 | 32.2% | 14 | +801.1% |
| 3 | UnitedHealth Group, Inc. | 3,769 | 19.2% | 14 | -68.3% |
| 4 | CVS Health Corporation | 1,360 | 6.9% | 14 | +7.4% |
| 5 | Elevance Health, Inc. | 256 | 1.3% | 14 | -8.6% |
| 6 | Highmark Health | 13 | 0.1% | 14 | -23.5% |
| 7 | Alignment Healthcare USA, LLC | 0 | 0.0% | 14 | — |
| 8 | Allina Health and Aetna Insurance Holding Company | 0 | 0.0% | 14 | — |
| 9 | Aultman Health Foundation | 0 | 0.0% | 14 | — |
| 10 | Aware Integrated, Inc. | 0 | 0.0% | 14 | — |
| 11 | Baystate Health, Inc. | 0 | 0.0% | 14 | — |
| 12 | Blue Cross & Blue Shield of Rhode Island | 0 | 0.0% | 14 | — |
| 13 | Blue Cross and Blue Shield of Massachusetts, Inc. | 0 | 0.0% | 14 | — |
| 14 | Blue Cross Blue Shield of Arizona | 0 | 0.0% | 1 | — |
| 15 | Blue Cross Blue Shield of Kansas | 0 | 0.0% | 14 | — |
| 16 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 0 | 0.0% | 14 | -100.0% |
| 17 | Blue Cross Blue Shield of Nebraska | 0 | 0.0% | 14 | — |
| 18 | BlueCross BlueShield of Alabama | 0 | 0.0% | 14 | — |
| 19 | BlueCross BlueShield of South Carolina (BCBSSC) | 0 | 0.0% | 14 | — |
| 20 | BlueCross BlueShield of Tennessee | 0 | 0.0% | 14 | — |
| 21 | BMC Health System, Inc. | 0 | 0.0% | 2 | — |
| 22 | California Physicians' Service | 0 | 0.0% | 14 | — |
| 23 | Cambia Health Solutions, Inc. | 0 | 0.0% | 14 | — |
| 24 | CAPITAL BLUE CROSS | 0 | 0.0% | 14 | — |
| 25 | CareFirst, Inc. | 0 | 0.0% | 14 | — |
| 26 | CareSource | 0 | 0.0% | 5 | — |
| 27 | Centene Corporation | 0 | 0.0% | 5 | — |
| 28 | Corewell Health | 0 | 0.0% | 14 | — |
| 29 | CuraCor Solutions Corp. | 0 | 0.0% | 14 | — |
| 30 | Devoted Health, Inc. | 0 | 0.0% | 1 | — |
| 31 | EmblemHealth, Inc. | 0 | 0.0% | 14 | — |
| 32 | Eternal Health of Delaware, Inc. | 0 | 0.0% | 1 | — |
| 33 | Fallon Community Health Plan, Inc. | 0 | 0.0% | 14 | — |
| 34 | Fenyx Health Holdings, Inc. | 0 | 0.0% | 14 | — |
| 35 | General Catalyst Group Management Holdings LP | 0 | 0.0% | 14 | — |
| 36 | Guidewell Mutual Holding Corporation | 0 | 0.0% | 14 | — |
| 37 | Hawaii Medical Service Association | 0 | 0.0% | 14 | — |
| 38 | Healthfirst, Inc. | 0 | 0.0% | 14 | — |
| 39 | HealthPartners, Inc. | 0 | 0.0% | 14 | — |
| 40 | Henry Ford Health System | 0 | 0.0% | 14 | — |
| 41 | Horizon Mutual Holdings, Inc | 0 | 0.0% | 14 | — |
| 42 | Independence Health Group, Inc. | 0 | 0.0% | 14 | — |
| 43 | Independent Health Association, Inc. | 0 | 0.0% | 14 | — |
| 44 | Kaiser Foundation Health Plan, Inc. | 0 | 0.0% | 3 | — |
| 45 | Lifetime Healthcare, Inc. | 0 | 0.0% | 14 | — |
| 46 | Louisiana Health Service & Indemnity Company | 0 | 0.0% | 14 | — |
| 47 | Martin's Point Health Care, Inc. | 0 | 0.0% | 14 | — |
| 48 | Mass General Brigham Incorporated | 0 | 0.0% | 3 | — |
| 49 | Medica Holding Company | 0 | 0.0% | 14 | — |
| 50 | MEDICAL MUTUAL OF OHIO | 0 | 0.0% | 14 | — |
| 51 | Molina Healthcare, Inc. | 0 | 0.0% | 1 | — |
| 52 | MVP Health Care, Inc. | 0 | 0.0% | 14 | — |
| 53 | NEIGHBORHOOD HEALTH PLAN OF RHODE ISLAND | 0 | 0.0% | 1 | — |
| 54 | Network Health, Inc. | 0 | 0.0% | 14 | — |
| 55 | Point32Health, Inc. | 0 | 0.0% | 3 | — |
| 56 | Presbyterian Healthcare Services | 0 | 0.0% | 1 | — |
| 57 | SCAN Group | 0 | 0.0% | 3 | — |
| 58 | The Health Plan of West Virginia, Inc. | 0 | 0.0% | 14 | — |
| 59 | The Regents of the University of California | 0 | 0.0% | 1 | — |
| 60 | Ultimate Healthcare Holdings, LLC | 0 | 0.0% | 1 | — |
| 61 | UPMC Health System | 0 | 0.0% | 14 | — |
| 62 | USAble Mutual Insurance Company | 0 | 0.0% | 14 | — |
County view
Leading carrier and Advantage enrollment in each Vermont county. Penetration is from CMS Medicare Monthly Enrollment, 2024.
| County | Advantage enrollees | Leading carrier | Leader share | Carriers | Penetration |
|---|---|---|---|---|---|
| Chittenden | 3,857 | UnitedHealth Group, Inc. | 56.7% | 52 | 36.5% |
| Windham | 2,694 | Humana Inc. | 75.8% | 51 | 29.3% |
| Bennington | 2,418 | Humana Inc. | 80.0% | 49 | 30.5% |
| Windsor | 2,408 | Humana Inc. | 59.4% | 52 | 30.8% |
| Caledonia | 1,676 | Humana Inc. | 65.9% | 49 | 32.1% |
| Orange | 1,289 | Humana Inc. | 67.6% | 49 | 28.1% |
| Rutland | 1,149 | Health Care Service Corporation | 75.4% | 48 | 33.2% |
| Washington | 1,007 | Health Care Service Corporation | 60.6% | 54 | 25.5% |
| Franklin | 981 | UnitedHealth Group, Inc. | 49.9% | 47 | 33.7% |
| Addison | 637 | Health Care Service Corporation | 68.9% | 48 | 36.6% |
| Essex | 507 | Humana Inc. | 86.6% | 48 | 33.8% |
| Lamoille | 412 | Health Care Service Corporation | 63.6% | 49 | 31.1% |
| Orleans | 410 | Health Care Service Corporation | 71.5% | 47 | 34.2% |
| Grand Isle | 218 | UnitedHealth Group, Inc. | 44.0% | 47 | 39.4% |
What is missing
CMS suppresses any plan-county cell with fewer than 11 enrollees. Those enrollees are missing from these counts, so every figure is a floor, not an exact total.
What is counted
Counts cover Medicare Advantage contracts only (Local CCP, Regional CCP, PFFS and MSA). Standalone Part D drug plans, cost plans, HCPP and PACE contracts are excluded.
Source: CMS Monthly Enrollment by Contract/Plan/State/County (CPSC).