Medicare Advantage in Norfolk County, Massachusetts
49,575 people in Norfolk County, Massachusetts were enrolled in Medicare Advantage in October 2026, 32.0% of 154,686 eligible beneficiaries (−0.7 pts since October 2025). Point32Health, Inc. is the largest parent organization with 29% of reported enrollment; 16 parent organizations have 11 or more members and the HHI is 1,920 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 8,411 members here are in plans that terminate or leave the county. MA plans offered go from 33 to 34.
Parent organizations in Norfolk County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Point32Health, Inc. | 14,316 | −1,390 | 29.0% |
| UnitedHealth Group, Inc. | 11,193 | −968 | 22.7% |
| Blue Cross and Blue Shield of Massachusetts, Inc. | 8,465 | −668 | 17.2% |
| CVS Health Corporation | 6,727 | +997 | 13.6% |
| Mass General Brigham Incorporated | 3,185 | +1,828 | 6.5% |
| CareSource | 2,512 | +143 | 5.1% |
| Molina Healthcare, Inc. | 1,531 | +124 | 3.1% |
| Fallon Community Health Plan, Inc. | 525 | +138 | 1.1% |
| Eternal Health of Delaware, Inc. | 351 | +209 | 0.7% |
| Harbor Health Services, Inc. | 205 | −14 | 0.4% |
| Humana Inc. | 135 | +72 | 0.3% |
| Elevance Health, Inc. | 76 | +6 | 0.2% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 21 | −16 | under 0.1% |
| Blue Cross & Blue Shield of Rhode Island | 19 | −2 | under 0.1% |
| Serenity Care, Inc. | 16 | +2 | 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, 53,503 beneficiaries in Norfolk County were assigned to 150 Medicare Shared Savings Program ACOs, 72.6% of assignable Original Medicare beneficiaries. Together, roughly 81% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.