Medicare Supplement in Limestone County, Texas. About 5,509 Medicare beneficiaries live here, with roughly 53 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.
Limestone County Medicare Supplement — quick answer
Limestone County, TX has 5,509 Medicare beneficiaries per CMS Q1 2024 data, with about 53% enrolled in Medicare Advantage. The top medicare supplement carriers are UnitedHealthcare, Humana, Aetna. We compare these plans for free and never charge a fee.
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The Limestone County medicare supplement market
About 53% of Limestone County's 5,509 Medicare beneficiaries are in Medicare Advantage — right around the national norm — so you'll find a genuine mix of competitive MA plans and Medigap options here rather than a one-sided market. The county skews older than the Texas average (22% are 65 or older), which means heavy carrier competition and meaningful plan turnover each Annual Enrollment Period — a yearly review almost always pays off. 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 17 Medicare Advantage plans are available in Limestone County, so a side-by-side comparison genuinely matters. Medicare Advantage enrollment figures reflect the latest CMS data (May 2026).
Limestone County at a glance
Population (2024 ACS)
22,283
Medicare beneficiaries
5,509
MA penetration
53%
Age 65 or older
22%
What makes Limestone County different: Despite being a rural Central Texas county, Limestone has unusually high Medicare Advantage penetration of about 50% of its 5,419 Medicare beneficiaries (CMS 2024, MA_AND_OTH = 2,725), with UnitedHealthcare the dominant carrier and offering multiple Dual-Eligible Special Needs Plans (D-SNPs). The county has roughly 959 dual-eligible (Medicare + Medicaid) residents per CMS 2024 (550 full-dual, 410 partial-dual), and 65+ residents make up about 21.7% of the population, well above the Texas average of about 14%.
Top Medicare Advantage plans in Limestone County
UnitedHealthcare
4-star CMS rating
Humana
3.5-star CMS rating
Aetna (CVS Health)
4-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 Limestone County
Each Medicare Supplement plan builds its own provider network — a hospital that's in-network
on one plan may be out-of-network on another. Limestone County has 1
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
â–¸Limestone Medical Center (Groesbeck)
Call each hospital's billing office directly — or use the carrier's
network tool on the right to search by hospital name.
Free help in Limestone 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.
Pick a time on Matt's calendar — 15 minutes, no sales pressure, no obligation. We'll walk through the Limestone County plans that fit your situation.
Major hospitals: Limestone Medical Center (Groesbeck)
Frequently Asked Questions
How many Medicare beneficiaries live in Limestone County?â–¾
About 5,509 Texans in Limestone County are enrolled in Medicare as of May 2026 CMS data. About 53% are in Medicare Advantage plans; the rest are in Original Medicare (with or without Medigap).
Who are the top Medicare carriers in Limestone County?â–¾
The largest carriers in Limestone County are UnitedHealthcare, Humana, Aetna (CVS 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 Limestone County?â–¾
Texas HICAP (1-800-252-9240) provides free unbiased Medicare counseling. Major hospitals in the county include Limestone Medical Center (Groesbeck).
How many Medicare Advantage plans are available in Limestone County?â–¾
As of May 2026, about 17 Medicare Advantage plans are available to Limestone County residents, led by UnitedHealth Group, Inc., CVS Health Corporation, Baylor Scott & White Health, Humana Inc.. We compare all of them side by side at no cost.
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Educational only — not medical or legal advice. We do not offer every plan in your area. Call 1-800-MEDICARE for all options.
