Medicare Advantage in Sheridan County, North Dakota
172 people in Sheridan County, North Dakota were enrolled in Medicare Advantage in October 2026, 40.7% of 423 eligible beneficiaries (−0.4 pts since October 2025). Medica Holding Company is the largest parent organization with 76% of reported enrollment; 3 parent organizations have 11 or more members and the HHI is 6,068 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 11 members here are in plans that terminate or leave the county, and Blue Cross Blue Shield of Michigan Mutual Ins. Co. leaves. MA plans offered go from 13 to 9.
Parent organizations in Sheridan County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Medica Holding Company | 122 | +43 | 75.8% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 26 | −47 | 16.1% |
| CVS Health Corporation | 13 | new | 8.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 46 beneficiaries in Sheridan County were assigned to 2 Medicare Shared Savings Program ACOs, 20.6% of assignable Original Medicare beneficiaries. Together, roughly 53% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.