Medicare Advantage in Atascosa County, Texas. About 10,398 Medicare beneficiaries live here, with roughly 64 percent in Medicare Advantage plans. Top carriers include UnitedHealthcare and Humana. For free help comparing plans, call Giron Agency, a licensed Texas agency, or visit gironagency.com.

Atascosa County Medicare Advantage Plans

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Matt Giron

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Atascosa County Medicare Advantage — quick answer

Atascosa County, TX has 10,398 Medicare beneficiaries per CMS Q1 2024 data, with about 64% enrolled in Medicare Advantage. The top medicare advantage carriers are UnitedHealthcare, Humana, WellCare. We compare these plans for free and never charge a fee.

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The Atascosa County medicare advantage market

Atascosa County posts one of the highest Medicare Advantage adoption rates in Texas — roughly 64% of its 10,398 beneficiaries chose an MA plan over Original Medicare. That level of uptake usually means carriers compete hard locally, so the extra benefits (dental, OTC allowance, transportation, gym) tend to be richer than the Texas average. UnitedHealthcare currently leads the county by enrollment, but the lowest total-cost plan for your specific drugs and doctors is often a smaller carrier — which is why we run all of them side by side instead of pushing the biggest name. Right now roughly 21 Medicare Advantage plans are available in Atascosa County, so a side-by-side comparison genuinely matters. Medicare Advantage enrollment figures reflect the latest CMS data (May 2026).

Atascosa County at a glance

Population (2024 ACS)
54,243
Medicare beneficiaries
10,398
MA penetration
64%
Age 65 or older
16%

What makes Atascosa County different: Atascosa County sits in the oil window of the Eagle Ford Shale just south of San Antonio, blending an energy and cattle-ranching economy; its proximity to the Bexar County metro pushes Medicare Advantage penetration well above the rural-Texas norm. Jourdanton is the county seat while Pleasanton is the largest city.

Top Medicare Advantage plans in Atascosa County

  • UnitedHealthcare

    4-star CMS rating

  • Humana

    3.5-star CMS rating

  • WellCare (Centene)

    3.5-star CMS rating

  • Devoted Health

    5-star CMS rating

Source: CMS Monthly MA Enrollment by State/County/Contract (latest Q1 2024). Enrollment figures refresh monthly at data.cms.gov.

Before you enroll: verify your hospital + doctor in Atascosa County

Each Medicare Advantage plan builds its own provider network — a hospital that's in-network on one plan may be out-of-network on another. Atascosa County has 2 major hospital systems. Before you enroll, check that your preferred hospital and physicians participate in the specific plan you're considering.

Major hospitals to verify

  • Methodist Hospital Atascosa (Jourdanton)
  • Methodist Hospital South (San Antonio area)

Call each hospital's billing office directly — or use the carrier's network tool on the right to search by hospital name.

Top Atascosa carriers — network lookup

Free help in Atascosa County: Texas HICAP — call 1-800-252-9240. SHIP counselors offer free unbiased Medicare guidance and can run network checks at no cost.

Or skip the cross-checking — we run network checks against your prescriptions and doctors at no cost during any consult.

Medicare AEP opens in 131 days

131 daysuntil open

Outside the windows, Special Enrollment Periods (SEP) still let you change plans if you moved, lost coverage, qualify for Extra Help / dual eligible, or had a plan terminated. Call to see if you qualify.

Check SEP eligibility (15-min) →

Want to talk it through?

Pick a time on Matt's calendar — 15 minutes, no sales pressure, no obligation. We'll walk through the Atascosa County plans that fit your situation.

Local resources in Atascosa County

Frequently Asked Questions

How many Medicare beneficiaries live in Atascosa County?

About 10,398 Texans in Atascosa County are enrolled in Medicare as of May 2026 CMS data. About 64% are in Medicare Advantage plans; the rest are in Original Medicare (with or without Medigap).

Who are the top Medicare carriers in Atascosa County?

The largest carriers in Atascosa County are UnitedHealthcare, Humana, WellCare (Centene), Devoted Health. We work with all of them and a few smaller carriers that often have better rates for specific situations.

What SHIP resources are available in Atascosa County?

Texas HICAP (1-800-252-9240) provides free unbiased Medicare counseling. Major hospitals in the county include Methodist Hospital Atascosa (Jourdanton), Methodist Hospital South (San Antonio area).

How many Medicare Advantage plans are available in Atascosa County?

As of May 2026, about 21 Medicare Advantage plans are available to Atascosa County residents, led by UnitedHealth Group, Inc., Humana Inc., Health Care Service Corporation, CVS Health Corporation. We compare all of them side by side at no cost.

How does Medicare Advantage penetration compare to other rural areas in Texas?

Atascosa County has a higher Medicare Advantage penetration rate than the typical rural area in Texas, partly due to its proximity to Bexar County's metro area, which influences local insurance preferences.

When is the best time to enroll in a Part C plan for Atascosa County residents?

For most Atascosa County residents, the Annual Enrollment Period (AEP) from October 15 to December 7 is the best time to enroll. However, Special Enrollment Periods may be available if you experience a life-changing event.

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