Medicare Advantage in Grand Traverse County, Michigan
17,535 people in Grand Traverse County, Michigan were enrolled in Medicare Advantage in October 2026, 64.7% of 27,084 eligible beneficiaries (−0.1 pts since October 2025). Corewell Health is the largest parent organization with 44% of reported enrollment; 10 parent organizations have 11 or more members and the HHI is 3,068 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 6,906 members here are in plans that terminate or leave the county. MA plans offered go from 42 to 40.
Parent organizations in Grand Traverse County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Corewell Health | 7,743 | +1,225 | 44.3% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 4,941 | −1,546 | 28.3% |
| Humana Inc. | 2,821 | +817 | 16.1% |
| UnitedHealth Group, Inc. | 850 | −42 | 4.9% |
| CVS Health Corporation | 808 | −69 | 4.6% |
| PACE North | 154 | −2 | 0.9% |
| Henry Ford Health System | 97 | new | 0.6% |
| Longevity Health Founders, LLC | 28 | −8 | 0.2% |
| Elevance Health, Inc. | 25 | 0 | 0.1% |
| Molina Healthcare, Inc. | 12 | −5 | 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, 1,286 beneficiaries in Grand Traverse County were assigned to 67 Medicare Shared Savings Program ACOs, 17.4% of assignable Original Medicare beneficiaries. Together, roughly 71% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.