Medicare Advantage Plans in Williamson County, TX:
Your Complete 2026 Guide
For 2026, residents of Williamson County, TX can choose from 43 Medicare Advantage plan options. Of these, 31 cost nothing beyond the Part B premium. Enrollment in the County stands at approximately 27,595, with 51% of plans achieving 4 stars or better. The totals and data on this page do not cover Special Needs Plans. View SNPs available in Williamson County, TX.
- Page Updated
- Enrollment Data
- May 2, 2026
- CMS Quality Ratings
- * CMS reviews Medicare Advantage plans annually with a 5-star rating program. Data sources
Medicare Advantage PPO Plans
Preferred Provider Organization (PPO) plans allow members to choose care from both in-network and out-of-network providers. While using out-of-network doctors or hospitals usually means higher costs, PPOs may appeal to people who want more flexibility in how they access their healthcare.
- Total PPO Plans
- 20
- Average Premium
- $40.85/mo
- Beneficiaries Enrolled
- 10,595
- $0 Premium PPOs
- 12
- Average MOOP
- $7,218
- Most Popular PPO
- Humana Full Access H5216-432 (PPO) with 2,298 enrollees
- PPOs Without Drug Coverage
- 6
What is the typical premium for PPO plans available in Williamson?
On average, PPO plans in Williamson cost $40.85 per month.
Which PPO plan do most beneficiaries choose in Williamson?
The most popular PPO in Williamson is Humana Full Access H5216-432 (PPO), covering 2,298 beneficiaries.
How many PPO options are offered without drug coverage in Williamson?
6 PPO plans available in Williamson do not include Part D benefits.
Medicare Advantage HMO Plans
Health Maintenance Organization (HMO) plans generally require members to use doctors, hospitals, and other providers within the plan’s network, except in emergencies. Because of this structure, HMOs often come with lower premiums and out-of-pocket costs compared with other plan types.
- Total HMO Plans 10
- Average Premium $0.00/mo
- Beneficiaries Enrolled 6,354
- $0 Premium HMOs 10
- Average MOOP $5,425
- Most Popular HMO Humana Gold Plus H0028-037 (HMO) with 3,129 enrollees
- HMOs 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 total number of HMO plans offered in Williamson?
In 2026, Williamson County has 10 HMO plans with 6,354 members.
How much do HMO plans cost on average in Williamson?
The mean monthly HMO premium is $0.00, and 10 have no premium.
Medicare Advantage HMO-POS Plans
HMO-POS plans are structured like HMOs, requiring in-network care for the lowest costs, but they also permit some use of out-of-network doctors and hospitals. Those services are generally more expensive, but the added access can be valuable for people who don’t want to be fully limited to a single network.
- Total HMO-POS Plans
- 13
- Average Premium
- $32.60/mo
- Beneficiaries Enrolled
- 10,646
- $0 Premium HMO-POS
- 9
- Average MOOP
- $5,896
- Most Popular HMO-POS
- AARP Medicare Advantage Essentials from UHC TX-12 (HMO-POS) with 4,179 enrollees
- HMO-POS 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 average monthly premium for HMO-POS plans?
- On average, HMO-POS plans in Williamson cost $32.60 per month.
- Which HMO-POS plan is most popular in Williamson?
- The leading HMO-POS in Williamson is AARP Medicare Advantage Essentials from UHC TX-12 (HMO-POS), with 4,179 members.
- How many HMO-POS plans in Williamson do not include drug coverage?
- There are 4 HMO-POS plans in Williamson without Part D benefits.
The table below shows the quality ratings for Medicare Advantage plans offered in Williamson County, TX for 2026.
| 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 | |
Medicare Advantage comes with strict enrollment windows. By knowing when and how to sign up, you’ll avoid missed deadlines and keep your healthcare coverage aligned with your needs.
Understanding Enrollment Windows
- Initial Enrollment Period (IEP): Beginning three months before you turn 65 and lasting until three months after, this is the initial chance to join Medicare. You may also select a Medicare Advantage plan if it fits your needs. Learn more
- Medicare Advantage Open Enrollment Period (MA OEP): Running from January 1 to March 31 each year, this period allows one change to your current Medicare Advantage coverage or a move back to Original Medicare. Learn more
- Annual Enrollment Period (AEP): This yearly window, running October 15 to December 7, gives you the opportunity to join, switch, or drop Medicare Advantage and Part D plans. Learn more
- Special Enrollment Periods (SEPs): Certain qualifying events, such as a change in residence or loss of existing coverage, may allow you to enroll in or change Medicare Advantage plans outside of the usual enrollment windows. Learn more
Enrollment Options Explained
- Talk with a Licensed Agent: Licensed agents at HealthCompare can explain your Medicare Advantage choices. Reach them at 1-833-748-3201 (TTY 711), Monday–Friday 5am–6pm and Saturday 6am–5pm PST.
- Contact the Plan Provider Directly: Enrollment can also be completed by calling the plan provider’s customer service line or visiting their official website.
- Use Medicare.gov: The official Medicare website, Medicare.gov, lets you review available plans and complete enrollment online.
The MA and MAPD plans on this page are available to people on Medicare enrolled in both Medicare Part A and Part B living in Florence, Granger, Jarrell, Taylor, Thrall, Cedar Park, Coupland, Georgetown, Hutto, Leander, Liberty Hill, Round Rock, Austin, and all other areas of Williamson County, Texas.
Plans Offered for Enrollment through Medicare.org
Medicare Advantage and Part D plans and benefits offered by the following carriers: Medicare Advantage and Part D plans and benefits offered by the following carriers: Aetna Medicare, Anthem Blue Cross and Blue Shield, Aspire Health Plan, Baylor Scott & White Health Plan, Capital Blue Cross, Dean Health Plan, Devoted Health, Florida Blue Medicare, Freedom Health, GlobalHealth, Health Care Service Corporation, HealthSpring℠, HealthSun, Healthy Blue, Humana, Molina Healthcare, Mutual of Omaha, Medica Central Health Plan, Optimum HealthCare, Premera Blue Cross, SCAN Health Plan, Simply, UnitedHealthcare(R), Wellcare, WellPoint
- CMS.gov, Landscape Source Files — Last accessed September 26, 2025
- CMS.gov, Medicare Part C & D Performance — Last accessed October 10, 2025
- CMS.gov, Plan Benefits Package — Last accessed October 13, 2025
- CMS.gov, Medicare Advantage/Part D Contract and Enrollment Data — Last accessed May 2, 2026
Some facts and percentages shown on this page (such as average premiums, distribution of plan types, and percentage of $0 premium plans) are calculated by Medicare.org using data from the CMS Landscape file, Plan Benefits Package (PBP) files and Part C & D Performance files. All underlying values originate from CMS, and calculations are refreshed whenever CMS issues updated data. Enrollment counts and rankings (such as Top 3 plans by enrollment) are derived from CMS monthly enrollment files and aggregated at the county level.
Medicare.org separates Medicare Advantage (MA/MAPD) plans and Special Needs Plans (SNPs) into different pages for clarity. As a result, plan counts, percentages, and other calculations shown here may differ from the aggregate totals published in the CMS Landscape files. All plan availability and benefit details originate from CMS.
Learn more about how we use CMS data.
- Medicare.gov, "Understanding Medicare Advantage Plans" — Last accessed 25 May, 2025
- Medicare.gov, "Explore your Medicare coverage options" — Last accessed 25 May, 2025
- NCOA.org, "5 Steps to Choosing the Right Medicare Plan for You" — Last accessed 25 May, 2025
Some facts and percentages shown on this page (such as average premiums, distribution of plan types, and percentage of $0 premium plans) are calculated by Medicare.org using data from the CMS Plan Benefits Package (PBP) files and Part C & D Performance files. All underlying values originate from CMS, and calculations are refreshed whenever CMS issues updated data.
To explore how 2026 Medicare Advantage plans available in Williamson County compare with plans offered elsewhere, you can search the Medicare Advantage plan directory to review options nationwide using the same authoritative data sources.
Medicare.org is owned and operated by Health Network Group, LLC, an Allstate company. Medicare.org provides information only and is not connected with or endorsed by the U.S. Government or the federal Medicare program.
Data provenance documentation is maintained in alignment with the U.S. Core Data for Interoperability (USCDI) Provenance standard.
Page content independently curated and maintained by David W. Bynon, Medicare Technical Operator, using a standardized, data-driven methodology designed for accurate, non-commercial Medicare plan interpretation and resolution.