Medicare Advantage in Creek County, Oklahoma
9,928 people in Creek County, Oklahoma were enrolled in Medicare Advantage in October 2026, 57.1% of 17,372 eligible beneficiaries (+0.5 pts since October 2025). St Francis Health System & St John Health System is the largest parent organization with 33% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 2,600 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 2,253 members here are in plans that terminate or leave the county, and Health Care Service Corporation, Centene Corporation leave. MA plans offered go from 36 to 26.
Parent organizations in Creek County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| St Francis Health System & St John Health System | 3,279 | +322 | 33.1% |
| UnitedHealth Group, Inc. | 3,066 | −1,306 | 31.0% |
| Humana Inc. | 2,173 | +1,000 | 22.0% |
| MHH Healthcare, L.P. | 650 | +136 | 6.6% |
| CVS Health Corporation | 328 | −5 | 3.3% |
| Devoted Health, Inc. | 243 | new | 2.5% |
| Health Care Service Corporation | 86 | −40 | 0.9% |
| Centene Corporation | 52 | −30 | 0.5% |
| LIFE Senior Services, Inc. | 21 | −1 | 0.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 3,153 beneficiaries in Creek County were assigned to 34 Medicare Shared Savings Program ACOs, 58.4% of assignable Original Medicare beneficiaries. Together, roughly 82% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.