Medicare Advantage in Platte County, Wyoming
478 people in Platte County, Wyoming were enrolled in Medicare Advantage in October 2026, 17.7% of 2,696 eligible beneficiaries (−8.5 pts since October 2025). Blue Cross Blue Shield of Michigan Mutual Ins. Co. is the largest parent organization with 83% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 6,979 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 0 members here are in plans that terminate or leave the county. MA plans offered go from 3 to 3.
Parent organizations in Platte County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 375 | new | 82.6% |
| UnitedHealth Group, Inc. | 54 | −599 | 11.9% |
| CVS Health Corporation | 13 | 0 | 2.9% |
| Humana Inc. | 12 | new | 2.6% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 154 beneficiaries in Platte County were assigned to 14 Medicare Shared Savings Program ACOs, 11.9% of assignable Original Medicare beneficiaries. Together, roughly 28% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.