H4523-001-000 HMO Aetna Medicare Signature Extra (HMO)
San Antonio and Austin Counties
Contract overview
2026 plans under H4523
CMS contract H4523 contains 20 plan-segment records in this dataset. Select a plan code below for its detailed benefit page.
OrganizationAetna Medicare
Plan typesHMO
Showing all 20 plan records.
H4523-015-000 HMO Aetna Medicare Signature Extra (HMO)
Houston and Surrounding Counties
H4523-020-000 HMO Aetna Medicare Prime Care (HMO)
San Antonio
H4523-021-000 HMO Aetna Medicare Prime Care (HMO)
Dallas and Surrounding Counties
H4523-024-000 HMO Aetna Medicare Prime Care (HMO)
Harris County
H4523-027-000 HMO Aetna Medicare Signature Care (HMO)
Rio Grande Valley Counties
H4523-028-000 HMO Aetna Medicare Full Dual (HMO D-SNP)
Austin · Dual-Eligible
H4523-029-000 HMO Aetna Medicare Full Dual Care (HMO D-SNP)
Houston and Surrounding Counties · Dual-Eligible
H4523-030-000 HMO Aetna Medicare Full Dual Care (HMO D-SNP)
Dallas and Surrounding Counties · Dual-Eligible
H4523-031-000 HMO Aetna Medicare Signature (HMO)
Galveston County
H4523-034-000 HMO Aetna Medicare Full Dual Care (HMO D-SNP)
Select Texas Counties · Dual-Eligible
H4523-037-000 HMO Aetna Medicare Prime Chronic Care (HMO C-SNP)
Houston and Surrounding Counties · Chronic or Disabling Condition
H4523-038-000 HMO Aetna Medicare Prime Chronic Care (HMO C-SNP)
San Antonio · Chronic or Disabling Condition
H4523-039-000 HMO Aetna Medicare Prime Chronic Total (HMO C-SNP)
Dallas and Surrounding Counties · Chronic or Disabling Condition
H4523-041-000 HMO Aetna Medicare Partial Dual Care (HMO D-SNP)
Select Texas Counties · Dual-Eligible
H4523-042-000 HMO Aetna Medicare Signature (HMO)
El Paso County
H4523-043-000 HMO Aetna Medicare Partial Dual Care (HMO D-SNP)
Houston and Surrounding Counties · Dual-Eligible
H4523-044-000 HMO Aetna Medicare Partial Dual Care (HMO D-SNP)
Dallas and Surrounding Counties · Dual-Eligible
H4523-801-000 HMO Aetna Medicare Plan (HMO)
Texas · Employer-only
H4523-802-000 HMO Aetna Medicare Plan w/Rx (HMO)
Texas · Employer-only
About contract pages
Why plans are grouped by contract
Medicare plan codes begin with a five-character CMS contract ID such as H4523. A contract can contain multiple plan IDs and service-area segments, so related codes can share the same contract while having different benefits or availability.
The records on this page come from the same official CMS 2026 sources used by Medicare Plan Lookup. Open the individual plan page and confirm final details in current official plan documents before relying on a benefit or cost-sharing amount.