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Top MA Enrollment Contracts in Austin-Round Rock-San Marcos, TX (Jul 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: 162,728.
Data source: SCC Enrollment MA Alternative File (2026-07).
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 | 39,128 | 5 | 24.0% |
| 2 | H4527 | PHYSICIANS HEALTH CHOICE OF TEXAS, LLC | HMO/HMOPOS | 29,514 | 5 | 18.1% |
| 3 | H5216 | HUMANA INSURANCE COMPANY | Local PPO | 16,044 | 5 | 9.9% |
| 4 | H0028 | CHA HMO, INC. | HMO/HMOPOS | 11,500 | 4 | 7.1% |
| 5 | H0107 | HEALTH CARE SERVICE CORPORATION | Local PPO | 10,717 | 5 | 6.6% |
| 6 | H7617 | EMPHESYS INSURANCE COMPANY | Local PPO | 10,657 | 5 | 6.5% |
| 7 | H4514 | UNITEDHEALTHCARE COMMUNITY PLAN OF TEXAS, L.L.C. | HMO/HMOPOS | 9,318 | 5 | 5.7% |
| 8 | H4461 | CARITEN HEALTH PLAN INC. | HMO/HMOPOS | 6,386 | 4 | 3.9% |
| 9 | H4523 | AETNA HEALTH INC. (TX) | HMO/HMOPOS | 4,002 | 4 | 2.5% |
| 10 | H8142 | SCOTT AND WHITE HEALTH PLAN | HMO/HMOPOS | 3,859 | 3 | 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: San Jose-Sunnyvale-Santa Clara, CA
- All top 50 MSA pages
- MA Enrollment search tool
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