Resources
Top MA Enrollment Contracts in Austin-Round Rock-San Marcos, TX (Feb 2026)
This page summarizes county-level Medicare Advantage enrollment by contract in this metro area.
Home / Data Tools / MA Enrollment / MA MSA Rankings / Austin-Round Rock-San Marcos, TX
MSA rank: 49 of top 50 by MA enrollment. CBSA: 12420. MSA total enrollment: 159,504.
Data source: SCC Enrollment MA Alternative File (2026-02).
Top 10 Contracts
| Rank | Contract ID | Organization Name | Plan Type | Enrolled | Counties | MSA Share |
|---|---|---|---|---|---|---|
| 1 | H2001 | SIERRA HEALTH AND LIFE INSURANCE COMPANY, INC. | Local PPO | 38,788 | 5 | 24.3% |
| 2 | H4527 | PHYSICIANS HEALTH CHOICE OF TEXAS, LLC | HMO/HMOPOS | 28,623 | 5 | 17.9% |
| 3 | H5216 | HUMANA INSURANCE COMPANY | Local PPO | 17,093 | 5 | 10.7% |
| 4 | H0028 | CHA HMO, INC. | HMO/HMOPOS | 12,436 | 5 | 7.8% |
| 5 | H0107 | HEALTH CARE SERVICE CORPORATION | Local PPO | 10,568 | 5 | 6.6% |
| 6 | H4514 | UNITEDHEALTHCARE COMMUNITY PLAN OF TEXAS, L.L.C. | HMO/HMOPOS | 9,470 | 5 | 5.9% |
| 7 | H7617 | EMPHESYS INSURANCE COMPANY | Local PPO | 9,202 | 5 | 5.8% |
| 8 | H4461 | CARITEN HEALTH PLAN INC. | HMO/HMOPOS | 4,733 | 4 | 3.0% |
| 9 | H8142 | SCOTT AND WHITE HEALTH PLAN | HMO/HMOPOS | 3,900 | 4 | 2.4% |
| 10 | H4523 | AETNA HEALTH INC. (TX) | HMO/HMOPOS | 3,762 | 4 | 2.4% |
Method note: Enrollment is based on legal state/county of residence for payment purposes and may include out-of-service-area beneficiaries.
Related Links
- Previous MSA: Birmingham, AL
- Next MSA: St. Petersburg-Clearwater-Largo, FL
- All top 50 MSA pages
- MA Enrollment search tool
For more granular data, historical data, or scientific analysis support, please email us.