MA Enrollment Explorer / Parent organizations / CareOregon, Inc.
CareOregon, Inc.: Medicare Advantage enrollment and market share
CareOregon, Inc. had 13,070 Medicare Advantage members in October 2026, #96 nationally with 0.04% of all MA enrollment. It lost 2,903 members (−18.2%) since October 2025, and has enrollment in 1 state and 5 counties with 11 or more members. In the 2026 Annual Election Period (December to February) it lost 1,370 members (−8.7%). For 2027, none of its members are in plans that terminate or leave their county.
13KMA members, October 2026
−18.2%change since October 2025 (−2,903)
0.04%national MA share, rank 96
1contracts with enrollment
Largest states
| State | Members | Share of state MA |
|---|---|---|
| Oregon | 13,029 | 2.5% |
Largest counties
| County | Members | Change since October 2025 | Share of county MA |
|---|---|---|---|
| Multnomah County, OR | 6,734 | −1,437 | 7.3% |
| Washington County, OR | 2,262 | −420 | 3.3% |
| Clackamas County, OR | 1,839 | −313 | 2.8% |
| Jackson County, OR | 1,786 | −244 | 5.8% |
| Columbia County, OR | 408 | −60 | 4.9% |
| Tillamook County, OR | 0 | −408 | 0.0% |
Contracts
| Contract | Plan type | Oct 2024 | Oct 2025 | Oct 2026 |
|---|---|---|---|---|
| H5859 CareOregon Advantage | HMO/HMOPOS | 17,781 | 15,973 | 13,070 |
Star ratings for these contracts are in the MA Quality Dashboard.