Medicare Advantage in Bexar County, Texas
203,802 people in Bexar County, Texas were enrolled in Medicare Advantage in October 2026, 59.0% of 345,520 eligible beneficiaries (+0.2 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 47% of reported enrollment; 18 parent organizations have 11 or more members and the HHI is 3,068 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 36,226 members here are in plans that terminate or leave the county. MA plans offered go from 59 to 48.
Parent organizations in Bexar County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 94,740 | −14,431 | 46.6% |
| Humana Inc. | 55,900 | +15,856 | 27.5% |
| Health Care Service Corporation | 17,556 | +1,174 | 8.6% |
| CVS Health Corporation | 13,465 | −361 | 6.6% |
| Devoted Health, Inc. | 8,626 | +4,989 | 4.2% |
| Centene Corporation | 4,230 | −1,667 | 2.1% |
| Elevance Health, Inc. | 3,848 | −1,145 | 1.9% |
| SCAN Group | 1,934 | +1,636 | 1.0% |
| Molina Healthcare, Inc. | 1,535 | −71 | 0.8% |
| Bexar County Hospital District | 902 | +483 | 0.4% |
| Clover Health Holdings, Inc. | 305 | +56 | 0.1% |
| Rifkin Managed Care Holding, LLC | 165 | +2 | under 0.1% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 102 | −1 | under 0.1% |
| Regency ISNP Holdings LLC | 80 | +4 | under 0.1% |
| California Physicians' Service | 39 | −1 | under 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, 35,293 beneficiaries in Bexar County were assigned to 256 Medicare Shared Savings Program ACOs, 40.2% of assignable Original Medicare beneficiaries. Together, roughly 75% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.