2026 Medicare Advantage Plans in Williamson County, TX
Last update: . Enrollment data updated: June 13, 2026
For 2026, Williamson County, TX includes 43 Medicare Advantage plans. Enrollment across these plans totals approximately 27,621, with 31 $0 premium options and 51% rated 4 stars or higher.
This page and its statistics exclude Medicare Advantage Special Needs Plans (SNPs). Special Needs Plans in Williamson County, TX are summarized separately. Visit Medicare Options in Williamson County, TX to see more options.
Medicare Advantage PPO Plans
Preferred Provider Organization (PPO) plans allow members to choose care from both in-network and out-of-network providers. Out-of-network care usually costs more, but PPOs offer greater flexibility in how members access care.
- Total PPO Plans
- 20
- Average Monthly Premium
- $40.85/mo
- Total PPO Enrollment
- 10,607
- $0 Premium PPO Plans
- 12
- Average MOOP
- $7,218
- Top PPO by Enrollment
- Humana Full Access H5216-432 (PPO) — 2,263 enrollees
- PPO Plans Without Drug Coverage
- 6
What is the average monthly premium for PPO plans in Williamson?
PPO plans in Williamson cost $40.85 per month on average.
Which PPO plan has the highest enrollment in Williamson?
The most popular PPO plan in Williamson is Humana Full Access H5216-432 (PPO), with 2,263 enrollees.
How many PPO plans in Williamson do not include prescription drug coverage?
6 PPO plans in Williamson do not include prescription drug coverage.
Medicare Advantage HMO Plans
Health Maintenance Organization (HMO) plans generally require members to use in-network doctors, hospitals, and other providers, except in emergencies. Because of this structure, HMOs often have lower premiums and out-of-pocket costs than other plan types.
- Total HMO Plans 10
- Average Monthly Premium $0.00/mo
- Total HMO Enrollment 6,369
- $0 Premium HMO Plans 10
- Average MOOP $5,425
- Top HMO by Enrollment Humana Gold Plus H0028-037 (HMO) — 3,075 enrollees
- HMO Plans Without Drug Coverage 1
| Plan Name | Rating* | Premium | MOOP | Rx Ded. | Plan-ID |
|---|---|---|---|---|---|
| DEVOTED CORE 014 TX | $0 | $5,400 | $305 | H7993-014-0 | |
| DEVOTED GIVEBACK 048 TX | $0 | $7,550 | $605 | H7993-048-0 | |
| Aetna Medicare Signature Extra | $0 | $3,800 | $615 | H4523-001-0 | |
| Humana Gold Plus H4461-054 | $0 | $4,850 | $615 | H4461-054-0 | |
| Wellcare Giveback | $0 | $7,500 | $615 | H0174-017-0 | |
| Humana Gold Plus H0028-037 | $0 | $4,850 | $615 | H0028-037-0 | |
| Wellcare Patriot Simple | $0 | $3,400 | N/A | H5294-014-0 | |
| Blue Cross Medicare Advantage Dental Value | $0 | $5,200 | $615 | H9706-007-0 | |
| Blue Cross Medicare Advantage Saver | $0 | $7,500 | $450 | H9706-008-0 | |
| Blue Cross Medicare Advantage Secure | $0 | $4,200 | $450 | H9706-005-0 |
What is the top HMO by enrollment in Williamson?
Humana Gold Plus H0028-037 (HMO) is the top HMO in Williamson, with 3,075 enrollees.
What is the number of HMO plans without Part D coverage in Williamson?
1 HMO plans in Williamson do not include prescription drug coverage.
Medicare Advantage HMO-POS Plans
HMO-POS plans are structured like HMOs, requiring in-network care for the lowest costs, while allowing limited out-of-network access at higher cost. This provides added flexibility compared with standard HMO plans.
- Total HMO-POS Plans
- 13
- Average Monthly Premium
- $32.60/mo
- Total HMO-POS Enrollment
- 10,645
- $0 Premium HMO-POS Plans
- 9
- Average MOOP
- $5,896
- Top HMO-POS by Enrollment
- AARP Medicare Advantage Essentials from UHC TX-12 (HMO-POS) — 4,144 enrollees
- HMO-POS Plans Without Drug Coverage
- 4
| Plan Name | Rating* | Premium | MOOP | Rx Ded. | Plan-ID |
|---|---|---|---|---|---|
| AARP Medicare Advantage CareFlex from UHC TX-47 | $0 | $6,700 | $600 | H4527-053-0 | |
| AARP Medicare Advantage Essentials from UHC TX-12 | $0 | $5,900 | $355 | H4527-002-0 | |
| AARP Medicare Advantage Extras from UHC TX-53 | $0 | $6,700 | $520 | H4527-059-0 | |
| AARP Medicare Advantage from UHC TX-46 | $21 | $5,500 | $355 | H4527-052-0 | |
| AARP Medicare Advantage Patriot No Rx TX-MA01 | $0 | $6,700 | N/A | H4527-024-0 | |
| BSW SeniorCare Advantage Essentials | $5 | $5,800 | $615 | H8142-009-0 | |
| BSW SeniorCare Advantage Preferred | $0 | $4,500 | N/A | H8142-005-0 | |
| BSW SeniorCare Advantage Preferred Rx | $143 | $4,600 | $0 | H8142-002-0 | |
| BSW SeniorCare Advantage Premium | $0 | $4,500 | N/A | H8142-006-0 | |
| BSW SeniorCare Advantage Premium Rx | $255 | $4,800 | $0 | H8142-003-0 | |
| BSW SeniorCare Advantage Select | $0 | $5,900 | N/A | H8142-004-0 | |
| BSW SeniorCare Advantage Select Rx | $0 | $5,800 | $250 | H8142-001-0 | |
| Wellpoint Medicare Advantage 2 | $0 | $9,250 | $300 | H2593-029-0 |
What is the typical premium for HMO-POS plans in Williamson?
HMO-POS plans in Williamson cost $32.60 per month on average.
Which HMO-POS plan has the most members in Williamson?
The most popular HMO-POS plan in Williamson is AARP Medicare Advantage Essentials from UHC TX-12 (HMO-POS), with 4,144 enrollees.
How many HMO-POS options are offered without prescription drug coverage in Williamson?
There are 4 HMO-POS plans in Williamson without prescription drug coverage.
CMS quality ratings for Medicare Advantage plans in Williamson County, TX (2026) are summarized below.
| Rating Category | Number of Plans | Percent of Plans |
|---|---|---|
| 5 Stars | 2 | 5% |
| 4 Stars (includes 5 Stars) | 22 | 51% |
| 3 Stars | 18 | 42% |
| Below 3 Stars | 3 | 7% |
| Not Rated | 0 | 0% |
| Average Rating | 3.79 | |
* CMS assigns Medicare Advantage star ratings annually based on plan quality and performance measures.
- CMS.gov, Medicare Advantage Landscape Source Files — Last accessed June 13, 2026
- CMS.gov, Medicare Part C & D Performance Data — Last accessed June 13, 2026
- CMS.gov, Medicare Advantage & Part D Contract and Enrollment Data — Last accessed June 13, 2026
All plan counts, enrollment totals, averages, and percentage distributions are calculated at the county level using CMS data and include standard Medicare Advantage (MA/MAPD) plans only, based on a consistent aggregation methodology.
Data sources and methodology documentation .
- Medicare.gov, "Understanding Medicare Advantage Plans" — Last accessed 25 May, 2025
- Medicare.gov, "Compare Original Medicare & Medicare Advantage" — Last accessed 25 May, 2025
- NCOA.org, "5 Steps to Choosing the Right Medicare Plan for You" — Last accessed 25 May, 2025
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Data provenance is documented in accordance with the U.S. Core Data for Interoperability (USCDI) Provenance standard .
Page content independently curated and maintained by David W. Bynon, Editorial Steward, using a standardized, data-driven methodology for accurate, non-commercial Medicare plan interpretation and resolution.