Medicare Advantage in Saginaw County, Michigan
33,228 people in Saginaw County, Michigan were enrolled in Medicare Advantage in October 2026, 68.2% of 48,699 eligible beneficiaries (+0.2 pts since October 2025). Blue Cross Blue Shield of Michigan Mutual Ins. Co. is the largest parent organization with 36% of reported enrollment; 11 parent organizations have 11 or more members and the HHI is 2,174 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 2,014 members here are in plans that terminate or leave the county. MA plans offered go from 53 to 50.
Parent organizations in Saginaw County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 11,775 | −2,139 | 35.5% |
| Humana Inc. | 6,360 | +1,112 | 19.2% |
| Henry Ford Health System | 6,216 | +2,290 | 18.7% |
| Corewell Health | 3,362 | +952 | 10.1% |
| CVS Health Corporation | 2,733 | +105 | 8.2% |
| UnitedHealth Group, Inc. | 1,360 | −345 | 4.1% |
| Molina Healthcare, Inc. | 630 | −89 | 1.9% |
| Centene Corporation | 473 | −43 | 1.4% |
| A&D Charitable Foundation, Inc. | 165 | +20 | 0.5% |
| Longevity Health Founders, LLC | 42 | −7 | 0.1% |
| McLaren Health Care Corporation | 40 | −12 | 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, 6,250 beneficiaries in Saginaw County were assigned to 57 Medicare Shared Savings Program ACOs, 53.1% of assignable Original Medicare beneficiaries. Together, roughly 85% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.