Connecticut Medicare Advantage market share
In September 2026, 445,344 Connecticut Medicare beneficiaries were enrolled in a Medicare Advantage plan across 78 parent carriers and 8 counties, led by CVS Health Corporation with 43.2% of counted enrollment.
Data month
September 2026
Advantage enrollees
445,344
+1.1% vs September 2025
Parent carriers
78
Advantage penetration
56.2%
CMS Medicare Monthly Enrollment, 2024
Carriers in Connecticut
CMS Monthly Enrollment by Contract/Plan/State/County (CPSC) · September 2026
| # | Parent organisation | Enrollees | Share | Counties | vs September 2025 |
|---|---|---|---|---|---|
| 1 | CVS Health Corporation | 192,249 | 43.2% | 8 | +46.3% |
| 2 | UnitedHealth Group, Inc. | 112,046 | 25.2% | 8 | -35.5% |
| 3 | Molina Healthcare, Inc. | 47,693 | 10.7% | 8 | +1.3% |
| 4 | Elevance Health, Inc. | 47,689 | 10.7% | 8 | -5.8% |
| 5 | Point32Health, Inc. | 22,964 | 5.2% | 7 | +11.8% |
| 6 | Centene Corporation | 12,106 | 2.7% | 8 | +16.2% |
| 7 | Humana Inc. | 8,666 | 1.9% | 8 | +127.6% |
| 8 | Health Care Service Corporation | 1,673 | 0.4% | 8 | -38.6% |
| 9 | Highmark Health | 153 | 0.0% | 8 | -1.3% |
| 10 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 53 | 0.0% | 8 | 0.0% |
| 11 | Healthfirst, Inc. | 23 | 0.0% | 8 | — |
| 12 | CareSource | 15 | 0.0% | 6 | — |
| 13 | Blue Cross & Blue Shield of Rhode Island | 14 | 0.0% | 8 | +7.7% |
| 14 | Alignment Healthcare USA, LLC | 0 | 0.0% | 8 | — |
| 15 | Allina Health and Aetna Insurance Holding Company | 0 | 0.0% | 8 | — |
| 16 | Astiva Health Holdings Incorporated | 0 | 0.0% | 1 | — |
| 17 | Athena Healthcare Holdings, LLC | 0 | 0.0% | 2 | — |
| 18 | Aultman Health Foundation | 0 | 0.0% | 8 | — |
| 19 | Aware Integrated, Inc. | 0 | 0.0% | 8 | — |
| 20 | Baystate Health, Inc. | 0 | 0.0% | 8 | — |
| 21 | Blue Cross and Blue Shield of Massachusetts, Inc. | 0 | 0.0% | 8 | -100.0% |
| 22 | Blue Cross Blue Shield of Arizona | 0 | 0.0% | 1 | — |
| 23 | Blue Cross Blue Shield of Kansas | 0 | 0.0% | 8 | — |
| 24 | Blue Cross Blue Shield of Nebraska | 0 | 0.0% | 8 | — |
| 25 | BlueCross BlueShield of Alabama | 0 | 0.0% | 8 | — |
| 26 | BlueCross BlueShield of South Carolina (BCBSSC) | 0 | 0.0% | 8 | — |
| 27 | BlueCross BlueShield of Tennessee | 0 | 0.0% | 8 | — |
| 28 | California Physicians' Service | 0 | 0.0% | 8 | — |
| 29 | Cambia Health Solutions, Inc. | 0 | 0.0% | 8 | — |
| 30 | CAPITAL BLUE CROSS | 0 | 0.0% | 8 | — |
| 31 | CareFirst, Inc. | 0 | 0.0% | 8 | — |
| 32 | Clover Health Holdings, Inc. | 0 | 0.0% | 2 | — |
| 33 | Corewell Health | 0 | 0.0% | 8 | — |
| 34 | CuraCor Solutions Corp. | 0 | 0.0% | 8 | — |
| 35 | Devoted Health, Inc. | 0 | 0.0% | 3 | — |
| 36 | Elderplan, Inc. | 0 | 0.0% | 2 | — |
| 37 | EmblemHealth, Inc. | 0 | 0.0% | 8 | — |
| 38 | Fallon Community Health Plan, Inc. | 0 | 0.0% | 8 | — |
| 39 | Fenyx Health Holdings, Inc. | 0 | 0.0% | 8 | — |
| 40 | General Catalyst Group Management Holdings LP | 0 | 0.0% | 8 | — |
| 41 | Guidewell Mutual Holding Corporation | 0 | 0.0% | 8 | — |
| 42 | Hawaii Medical Service Association | 0 | 0.0% | 8 | — |
| 43 | Health First Shared Services, Inc. | 0 | 0.0% | 2 | — |
| 44 | HealthPartners, Inc. | 0 | 0.0% | 8 | — |
| 45 | Henry Ford Health System | 0 | 0.0% | 8 | — |
| 46 | Horizon Mutual Holdings, Inc | 0 | 0.0% | 8 | — |
| 47 | Independence Health Group, Inc. | 0 | 0.0% | 8 | — |
| 48 | Independent Health Association, Inc. | 0 | 0.0% | 8 | — |
| 49 | Johns Hopkins Healthcare LLC | 0 | 0.0% | 1 | — |
| 50 | Kaiser Foundation Health Plan, Inc. | 0 | 0.0% | 5 | — |
| 51 | Lifetime Healthcare, Inc. | 0 | 0.0% | 8 | — |
| 52 | Longevity Health Founders, LLC | 0 | 0.0% | 2 | — |
| 53 | Louisiana Health Service & Indemnity Company | 0 | 0.0% | 8 | — |
| 54 | Martin's Point Health Care, Inc. | 0 | 0.0% | 8 | — |
| 55 | Mass General Brigham Incorporated | 0 | 0.0% | 2 | — |
| 56 | McLaren Health Care Corporation | 0 | 0.0% | 1 | — |
| 57 | Medica Holding Company | 0 | 0.0% | 8 | — |
| 58 | MEDICAL MUTUAL OF OHIO | 0 | 0.0% | 8 | — |
| 59 | Memorial Hermann Health System | 0 | 0.0% | 1 | — |
| 60 | Mercy Care | 0 | 0.0% | 1 | — |
| 61 | MHH Healthcare, L.P. | 0 | 0.0% | 3 | — |
| 62 | MVP Health Care, Inc. | 0 | 0.0% | 8 | — |
| 63 | NEIGHBORHOOD HEALTH PLAN OF RHODE ISLAND | 0 | 0.0% | 5 | — |
| 64 | Network Health, Inc. | 0 | 0.0% | 8 | — |
| 65 | New York City Health and Hospitals Corporation | 0 | 0.0% | 1 | — |
| 66 | Risant Health, Inc. | 0 | 0.0% | 2 | — |
| 67 | Samaritan Health Services, Inc. | 0 | 0.0% | 1 | — |
| 68 | SCAN Group | 0 | 0.0% | 4 | — |
| 69 | Sentara Health Care (SHC) | 0 | 0.0% | 1 | — |
| 70 | The Health Plan of West Virginia, Inc. | 0 | 0.0% | 8 | — |
| 71 | The Regents of the University of California | 0 | 0.0% | 2 | — |
| 72 | Thomas Jefferson University | 0 | 0.0% | 2 | — |
| 73 | Trinity Health Corporation | 0 | 0.0% | 1 | — |
| 74 | Ultimate Healthcare Holdings, LLC | 0 | 0.0% | 1 | — |
| 75 | Universal Health Services, Inc. | 0 | 0.0% | 1 | — |
| 76 | UPMC Health System | 0 | 0.0% | 8 | — |
| 77 | USAble Mutual Insurance Company | 0 | 0.0% | 8 | — |
| 78 | Visiting Nurse Service of New York | 0 | 0.0% | 1 | — |
County view
Leading carrier and Advantage enrollment in each Connecticut county. Penetration is from CMS Medicare Monthly Enrollment, 2024.
| County | Advantage enrollees | Leading carrier | Leader share | Carriers | Penetration |
|---|---|---|---|---|---|
| Hartford | 124,496 | CVS Health Corporation | 41.3% | 63 | — |
| New Haven | 112,306 | CVS Health Corporation | 44.9% | 64 | — |
| Fairfield | 80,072 | CVS Health Corporation | 37.6% | 61 | — |
| New London | 36,977 | CVS Health Corporation | 43.5% | 57 | — |
| Litchfield | 27,647 | CVS Health Corporation | 50.7% | 53 | — |
| Middlesex | 26,572 | CVS Health Corporation | 45.6% | 52 | — |
| Tolland | 20,843 | CVS Health Corporation | 49.1% | 53 | — |
| Windham | 16,431 | CVS Health Corporation | 48.2% | 53 | — |
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).