Medicare Advantage in Fairfield County, Connecticut
80,281 people in Fairfield County, Connecticut were enrolled in Medicare Advantage in October 2026. CVS Health Corporation is the largest parent organization with 38% of reported enrollment; 10 parent organizations have 11 or more members and the HHI is 2,826 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 16,571 members here are in plans that terminate or leave the county, and Molina Healthcare, Inc., Health Care Service Corporation leave. MA plans offered go from 20 to 11.
Parent organizations in Fairfield County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 30,284 | +11,560 | 37.7% |
| UnitedHealth Group, Inc. | 27,142 | −14,362 | 33.8% |
| Elevance Health, Inc. | 8,859 | −661 | 11.0% |
| Molina Healthcare, Inc. | 8,349 | +899 | 10.4% |
| Centene Corporation | 4,309 | +1,418 | 5.4% |
| Health Care Service Corporation | 773 | −251 | 1.0% |
| Humana Inc. | 507 | +311 | 0.6% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 30 | +1 | under 0.1% |
| Healthfirst, Inc. | 17 | new | under 0.1% |
| EmblemHealth, Inc. | 11 | 0 | under 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 19,836 beneficiaries in Fairfield County were assigned to 200 Medicare Shared Savings Program ACOs, 28.9% of assignable Original Medicare beneficiaries. See the ACOs in the MSSP Explorer.