Medicare Advantage in Madera County, California
13,865 people in Madera County, California were enrolled in Medicare Advantage in October 2026, 49.8% of 27,828 eligible beneficiaries (−0.2 pts since October 2025). Kaiser Foundation Health Plan, Inc. is the largest parent organization with 45% of reported enrollment; 13 parent organizations have 11 or more members and the HHI is 2,638 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 469 members here are in plans that terminate or leave the county, and Molina Healthcare, Inc. leaves. MA plans offered go from 21 to 18.
Parent organizations in Madera County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Kaiser Foundation Health Plan, Inc. | 6,252 | +124 | 45.3% |
| Alignment Healthcare USA, LLC | 2,315 | +733 | 16.8% |
| Elevance Health, Inc. | 1,769 | +150 | 12.8% |
| Humana Inc. | 1,267 | −28 | 9.2% |
| UnitedHealth Group, Inc. | 830 | −282 | 6.0% |
| SCAN Group | 562 | +237 | 4.1% |
| CVS Health Corporation | 224 | −445 | 1.6% |
| Centene Corporation | 179 | −249 | 1.3% |
| California Physicians' Service | 154 | +13 | 1.1% |
| Imperial Health Plan of California | 100 | +60 | 0.7% |
| Molina Healthcare, Inc. | 90 | −82 | 0.7% |
| WelbeHealth LLC. | 53 | +9 | 0.4% |
| Champion Health Plans-USA, LLC. | 15 | new | 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 3,043 beneficiaries in Madera County were assigned to 47 Medicare Shared Savings Program ACOs, 31.1% of assignable Original Medicare beneficiaries. Together, roughly 65% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.