MA Enrollment Explorer / Parent organizations / SAN JOAQUIN COUNTY HEALTH COMMISSION
SAN JOAQUIN COUNTY HEALTH COMMISSION: Medicare Advantage enrollment and market share
SAN JOAQUIN COUNTY HEALTH COMMISSION had 391 Medicare Advantage members in October 2026, #215 nationally with 0.00% of all MA enrollment. It gained 391 members (new) since October 2025, and has enrollment in 1 state and 3 counties with 11 or more members. It entered MA in the 2026 Annual Election Period with 189 members by February. For 2027, none of its members are in plans that terminate or leave their county.
391MA members, October 2026
newchange since October 2025 (+391)
0.00%national MA share, rank 215
1contracts with enrollment
Largest states
| State | Members | Share of state MA |
|---|---|---|
| California | 386 | 0.0% |
Largest counties
| County | Members | Change since October 2025 | Share of county MA |
|---|---|---|---|
| San Joaquin County, CA | 193 | new | 0.3% |
| Stanislaus County, CA | 182 | new | 0.3% |
| El Dorado County, CA | 11 | new | 0.1% |
Contracts
| Contract | Plan type | Oct 2024 | Oct 2025 | Oct 2026 |
|---|---|---|---|---|
| H5734 Health Plan of San Joaquin / Mountain Valley Health Plan Advantage D-SNP (HMO) | HMO/HMOPOS | n/a | n/a | 391 |
Star ratings for these contracts are in the MA Quality Dashboard.