MA Enrollment Explorer / Parent organizations / Community Health Plan of Washington
Community Health Plan of Washington: Medicare Advantage enrollment and market share
Community Health Plan of Washington had 8,897 Medicare Advantage members in October 2026, #111 nationally with 0.02% of all MA enrollment. It lost 5,307 members (−37.4%) since October 2025, and has enrollment in 1 state and 29 counties with 11 or more members. In the 2026 Annual Election Period (December to February) it lost 4,955 members (−35.0%). For 2027, none of its members are in plans that terminate or leave their county.
8,897MA members, October 2026
−37.4%change since October 2025 (−5,307)
0.02%national MA share, rank 111
1contracts with enrollment
Largest states
| State | Members | Share of state MA |
|---|---|---|
| Washington | 8,825 | 1.1% |
Largest counties
| County | Members | Change since October 2025 | Share of county MA |
|---|---|---|---|
| Yakima County, WA | 2,557 | −1,849 | 11.7% |
| King County, WA | 1,706 | −819 | 0.9% |
| Spokane County, WA | 805 | −348 | 1.1% |
| Grant County, WA | 474 | −484 | 7.1% |
| Snohomish County, WA | 425 | −122 | 0.5% |
| Whatcom County, WA | 357 | −123 | 1.4% |
| Benton County, WA | 337 | −255 | 2.5% |
| Chelan County, WA | 331 | −270 | 4.1% |
| Clark County, WA | 210 | −38 | 0.3% |
| Franklin County, WA | 203 | −152 | 4.3% |
| Pierce County, WA | 191 | −77 | 0.2% |
| Walla Walla County, WA | 163 | −127 | 3.3% |
| Okanogan County, WA | 144 | −67 | 4.1% |
| Stevens County, WA | 138 | −107 | 2.7% |
| Skagit County, WA | 135 | −34 | 0.8% |
Contracts
| Contract | Plan type | Oct 2024 | Oct 2025 | Oct 2026 |
|---|---|---|---|---|
| H5826 Community Health Plan of WA Medicare Advantage | HMO/HMOPOS | 15,071 | 14,204 | 8,897 |
Star ratings for these contracts are in the MA Quality Dashboard.