Medicare Advantage in Worcester County, Massachusetts
80,973 people in Worcester County, Massachusetts were enrolled in Medicare Advantage in October 2026, 44.0% of 184,048 eligible beneficiaries (−0.9 pts since October 2025). CVS Health Corporation is the largest parent organization with 20% of reported enrollment; 14 parent organizations have 11 or more members and the HHI is 1,492 (moderately concentrated). HRSA classifies the county as partly rural. For 2027, 26,920 members here are in plans that terminate or leave the county, and Central Mass Health Holding LLC leaves. MA plans offered go from 43 to 34.
Parent organizations in Worcester County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 15,676 | +1,074 | 19.5% |
| Blue Cross and Blue Shield of Massachusetts, Inc. | 14,892 | −2,032 | 18.5% |
| Point32Health, Inc. | 13,856 | −2,018 | 17.2% |
| Fallon Community Health Plan, Inc. | 11,115 | −527 | 13.8% |
| UnitedHealth Group, Inc. | 10,398 | −277 | 12.9% |
| Central Mass Health Holding LLC | 7,771 | +3,989 | 9.6% |
| CareSource | 3,777 | −65 | 4.7% |
| Humana Inc. | 1,684 | +31 | 2.1% |
| Mass General Brigham Incorporated | 465 | +182 | 0.6% |
| Eternal Health of Delaware, Inc. | 399 | +186 | 0.5% |
| Molina Healthcare, Inc. | 365 | −26 | 0.5% |
| Elevance Health, Inc. | 139 | −6 | 0.2% |
| Blue Cross & Blue Shield of Rhode Island | 26 | +1 | under 0.1% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 25 | −13 | 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, 48,223 beneficiaries in Worcester County were assigned to 165 Medicare Shared Savings Program ACOs, 67.2% of assignable Original Medicare beneficiaries. Together, roughly 82% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.