Medicare Supplement in Jefferson County, Texas. About 46,068 Medicare beneficiaries live here, with roughly 60 percent in Medicare Advantage plans. Top carriers include WellCare and UnitedHealthcare. For free help comparing plans, call Giron Agency, a licensed Texas agency, or visit gironagency.com.
Jefferson County Medicare Supplement — quick answer
Jefferson County, TX has 46,068 Medicare beneficiaries per CMS Q1 2024 data, with about 60% enrolled in Medicare Advantage. The top medicare supplement carriers are WellCare, UnitedHealthcare, Humana. We compare these plans for free and never charge a fee.
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The Jefferson County medicare supplement market
Jefferson County posts one of the highest Medicare Advantage adoption rates in Texas — roughly 60% of its 46,068 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. WellCare 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 32 Medicare Advantage plans are available in Jefferson County, so a side-by-side comparison genuinely matters. Medicare Advantage enrollment figures reflect the latest CMS data (May 2026).
Jefferson County at a glance
Population (2024 ACS)
253,900
Medicare beneficiaries
46,068
MA penetration
60%
Age 65 or older
16%
What makes Jefferson County different: Jefferson County is the heart of the Golden Triangle refining belt, home to the ExxonMobil Beaumont refinery and a Gulf Coast petrochemical workforce. With 16.2% of residents 65 or older it skews notably older than fast-growing Central Texas counties, and Beaumont's Baptist Hospitals of Southeast Texas and CHRISTUS Southeast Texas-St. Elizabeth are the dominant regional referral hospitals.
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 Jefferson 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. Jefferson County has 4
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
▸Baptist Hospitals of Southeast Texas (Beaumont)
▸CHRISTUS Southeast Texas - St. Elizabeth (Beaumont)
▸Memorial Hermann Baptist Beaumont Hospital
▸The Medical Center of Southeast Texas (Port Arthur)
Call each hospital's billing office directly — or use the carrier's
network tool on the right to search by hospital name.
Top Jefferson carriers — network lookup
WellCare 3.5★
Search "WellCare (TexanPlus provider directory" or call the carrier directly.
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.
Major hospitals: Baptist Hospitals of Southeast Texas (Beaumont), CHRISTUS Southeast Texas - St. Elizabeth (Beaumont), Memorial Hermann Baptist Beaumont Hospital, The Medical Center of Southeast Texas (Port Arthur)
Frequently Asked Questions
How many Medicare beneficiaries live in Jefferson County?▾
About 46,068 Texans in Jefferson County are enrolled in Medicare as of May 2026 CMS data. About 60% are in Medicare Advantage plans; the rest are in Original Medicare (with or without Medigap).
Who are the top Medicare carriers in Jefferson County?▾
The largest carriers in Jefferson County are WellCare (TexanPlus Classic Simple HMO-POS), UnitedHealthcare (AARP Medicare Advantage TX-0015 HMO-POS), Humana (Gold Plus H0028-072 HMO), Aetna. 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 Jefferson County?▾
Texas HICAP (Health Information, Counseling and Advocacy Program) (1-800-252-9240) provides free unbiased Medicare counseling. Major hospitals in the county include Baptist Hospitals of Southeast Texas (Beaumont), CHRISTUS Southeast Texas - St. Elizabeth (Beaumont), Memorial Hermann Baptist Beaumont Hospital, The Medical Center of Southeast Texas (Port Arthur).
How many Medicare Advantage plans are available in Jefferson County?▾
As of May 2026, about 32 Medicare Advantage plans are available to Jefferson County residents, led by UnitedHealth Group, Inc., Humana Inc., Centene Corporation, Health Care Service Corporation. We compare all of them side by side at no cost.
How does Medicare Supplement fit the needs of the petrochemical workers in Jefferson County?▾
Many petrochemical workers in Jefferson County have unique health needs. Medicare Supplements like Plans G, N, and high-deductible G can provide essential coverage not covered by Original Medicare, ensuring they're well-prepared for potential medical expenses.
When is the best time to enroll in a Medicare Supplement plan in Jefferson County?▾
You can enroll in a Medicare Supplement plan during Annual Enrollment Period (AEP) from October 15 to December 7, or outside of this period if you have a special enrollment period due to a life event. It’s important to review your options and consult with a local agent to find the right fit.
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