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Top MA Enrollment Contracts in Anaheim-Santa Ana-Irvine, CA (Jul 2026)
This page summarizes county-level Medicare Advantage enrollment by contract in this metro area.
Home / Data Tools / MA Enrollment / MA MSA Rankings / Anaheim-Santa Ana-Irvine, CA
MSA rank: 14 of top 50 by MA enrollment. CBSA: 11244. MSA total enrollment: 339,395.
Data source: SCC Enrollment MA Alternative File (2026-07).
Top 10 Contracts
| Rank | Contract ID | Organization Name | Plan Type | Enrolled | Counties | MSA Share |
|---|---|---|---|---|---|---|
| 1 | H5425 | SCAN HEALTH PLAN | HMO/HMOPOS | 85,548 | 1 | 25.2% |
| 2 | H0524 | KAISER FOUNDATION HP, INC. | HMO/HMOPOS | 80,658 | 1 | 23.8% |
| 3 | H0543 | UHC OF CALIFORNIA | HMO/HMOPOS | 29,582 | 1 | 8.7% |
| 4 | H5433 | ORANGE COUNTY HEALTH AUTHORITY | HMO/HMOPOS | 18,875 | 1 | 5.6% |
| 5 | H0504 | CALIFORNIA PHYSICIANS' SERVICE | HMO/HMOPOS | 15,255 | 1 | 4.5% |
| 6 | H1993 | ASTIVA HEALTH, INC. | HMO/HMOPOS | 14,208 | 1 | 4.2% |
| 7 | H7607 | CLEVER CARE OF GOLDEN STATE, INC. | HMO/HMOPOS | 12,300 | 1 | 3.6% |
| 8 | H5619 | ARCADIAN HEALTH PLAN, INC. | HMO/HMOPOS | 9,244 | 1 | 2.7% |
| 9 | H5521 | AETNA LIFE INSURANCE COMPANY | Local PPO | 7,812 | 1 | 2.3% |
| 10 | H3815 | ALIGNMENT HEALTH PLAN | HMO/HMOPOS | 7,763 | 1 | 2.3% |
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: Warren-Troy-Farmington Hills, MI
- Next MSA: San Diego-Chula Vista-Carlsbad, CA
- All top 50 MSA pages
- MA Enrollment search tool
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