MA Enrollment Explorer / Parent organizations / Astiva Health Holdings Incorporated
Astiva Health Holdings Incorporated: Medicare Advantage enrollment and market share
Astiva Health Holdings Incorporated had 54,330 Medicare Advantage members in October 2026, #51 nationally with 0.15% of all MA enrollment. It gained 16,196 members (+42.5%) since October 2025, and has enrollment in 1 state and 8 counties with 11 or more members. In the 2026 Annual Election Period (December to February) it gained 2,507 members (+6.4%). For 2027, 1,517 of its members are in plans that terminate and 12 in plans leaving their county, and it leaves 1 county entirely.
54KMA members, October 2026
+42.5%change since October 2025 (+16,196)
0.15%national MA share, rank 51
1contracts with enrollment
Largest states
| State | Members | Share of state MA |
|---|---|---|
| California | 54,204 | 1.4% |
Largest counties
| County | Members | Change since October 2025 | Share of county MA |
|---|---|---|---|
| Los Angeles County, CA | 17,944 | +2,830 | 1.8% |
| Orange County, CA | 14,671 | +1,199 | 4.3% |
| San Diego County, CA | 7,356 | +4,228 | 2.2% |
| Riverside County, CA | 7,334 | +4,198 | 2.5% |
| San Bernardino County, CA | 4,275 | +2,088 | 1.8% |
| Santa Clara County, CA | 2,598 | +1,614 | 1.6% |
| Ventura County, CA | 14 | −1 | 0.0% |
| Alameda County, CA | 12 | new | 0.0% |
Contracts
| Contract | Plan type | Oct 2024 | Oct 2025 | Oct 2026 |
|---|---|---|---|---|
| H1993 Astiva Health | HMO/HMOPOS | 13,838 | 38,134 | 54,330 |
Star ratings for these contracts are in the MA Quality Dashboard.