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Top MA Enrollment Contracts in Iowa (Jul 2026)
This page summarizes county-level Medicare Advantage enrollment by contract in Iowa.
Home / Data Tools / MA Enrollment / MA State Rankings / Iowa
Data source: SCC Enrollment MA Alternative File (2026-07). State total enrollment shown: 265,275.
Top 10 Contracts
| Rank | Contract ID | Organization Name | Plan Type | Enrolled | Counties | State Share |
|---|---|---|---|---|---|---|
| 1 | H1609 | AETNA HEALTH INC. (FL) | HMO/HMOPOS | 49,185 | 93 | 18.5% |
| 2 | H5900 | WELLMARK ADVANTAGE HEALTH PLAN, INC. | Local PPO | 33,249 | 84 | 12.5% |
| 3 | H5216 | HUMANA INSURANCE COMPANY | Local PPO | 26,027 | 98 | 9.8% |
| 4 | H0169 | UNITEDHEALTHCARE OF WISCONSIN, INC. | HMO/HMOPOS | 25,405 | 82 | 9.6% |
| 5 | H1608 | COVENTRY HEALTH AND LIFE INSURANCE COMPANY | Local PPO | 24,625 | 92 | 9.3% |
| 6 | H5253 | UNITEDHEALTHCARE OF WISCONSIN, INC. | HMO/HMOPOS | 18,357 | 54 | 6.9% |
| 7 | H2001 | SIERRA HEALTH AND LIFE INSURANCE COMPANY, INC. | Local PPO | 15,099 | 79 | 5.7% |
| 8 | H1862 | WELLCARE OF IOWA, INC. | HMO/HMOPOS | 13,366 | 74 | 5.0% |
| 9 | H1651 | MEDICAL ASSOCIATES HEALTH PLAN, INC. | 1876 Cost | 12,997 | 15 | 4.9% |
| 10 | H0028 | CHA HMO, INC. | HMO/HMOPOS | 9,587 | 47 | 3.6% |
Method note: Enrollment is based on legal state/county of residence for payment purposes and may include out-of-service-area beneficiaries.
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