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2027 Central & South Texas Network Guide · Updated November 9, 2026

Austin & San Antonio Hospital Insurance Accepted (2027): Ascension Seton, St. David's HealthCare, Methodist Healthcare & Baptist Health System

Along the I-35 Texas corridor from Round Rock, Cedar Park, and Austin down through San Marcos, New Braunfels, and San Antonio, patients choose between Ascension Seton, St. David's HealthCare, Baylor Scott & White (Austin/Round Rock), and Methodist Healthcare, Baptist Health System, and University Health (San Antonio). Here is the 2027 accepted insurance guide.

Check your Austin or San Antonio doctors & hospitals for 2027

Enter your Texas ZIP code and the hospitals or doctors you want to keep for a 2027 Medicare or Marketplace network check with David Huff (Texas License #2414025 · NPN #18213932). A review is not enrollment.

Direct Answer: What Insurance Do Austin & San Antonio Hospitals Accept in 2027?

Direct answer: In Austin and San Antonio for 2027, Ascension Seton, St. David's HealthCare, Baylor Scott & White (Austin/Round Rock), Methodist Healthcare San Antonio, Baptist Health System, and University Health all accept Original Medicare with any Medigap policy, while 2027 Texas ACA Marketplace HMO/EPO plans (Blue Cross and Blue Shield of Texas, Ambetter from Superior HealthPlan, Oscar Health, UnitedHealthcare, Moda, and Sendero/Community First) split hospital and clinic access by sub-network.

In Greater Austin, verifying whether your plan includes Austin Regional Clinic (ARC), Austin Diagnostic Clinic (ADC), and Dell Children's Medical Center is just as important as checking the hospital campus; in San Antonio, confirming whether your PCP admits to Methodist Hospital (HCA), Baptist Medical Center (Tenet), or CHRISTUS Santa Rosa prevents surprise out-of-network referrals.

2027 Austin & San Antonio Hospital & Medical Group Network Matrix

Compare 2027 ACA Marketplace and Medicare hospital participation across Austin, Round Rock, New Braunfels, and San Antonio:

Hospital System / Medical Group Key Campuses & Clinics 2027 ACA Marketplace Networks 2027 Medicare & Medigap Access
Ascension Seton (Austin, Williamson & Hays Counties) Ascension Seton Medical Center Austin, Dell Seton Medical Center at UT (Level I Trauma), Dell Children's Medical Center, Seton Williamson (Round Rock), Seton Hays (Kyle) Blue Cross Blue Shield of TX (Blue Advantage HMO — verify tier), Ambetter, Oscar Health, Sendero Health Plans (Travis), UnitedHealthcare Original Medicare + Medigap; contracted Central Texas Medicare Advantage PPO and HMO plans
St. David's HealthCare & Austin Regional Clinic (ARC) St. David's Medical Center, St. David's South Austin, St. David's North Austin Medical Center, St. David's Round Rock, Heart Hospital of Austin, Austin Regional Clinic (ARC) BCBSTX, Ambetter from Superior HealthPlan, UnitedHealthcare, Oscar Health (always verify ARC physician group NPI alongside St. David's) Original Medicare + Medigap; broad participation across UHC, Humana, Aetna, BCBSTX & Wellcare MA plans
Methodist Healthcare (San Antonio & Hill Country) Methodist Hospital (South Texas Medical Center), Methodist Children's Hospital, Methodist Stone Oak, Methodist Metropolitan, Methodist Texsan, Boerne ER BCBSTX, Ambetter, UnitedHealthcare, Oscar Health, Community First Health Plans (Bexar County — verify tier) Original Medicare + Medigap; broad Bexar County Medicare Advantage PPO and HMO participation
Baptist Health System, University Health & CHRISTUS Santa Rosa (San Antonio) Baptist Medical Center, North Central Baptist (Stone Oak), Mission Trail, St. Luke's Baptist, University Hospital (Level I Trauma), CHRISTUS Santa Rosa (Westover Hills / New Braunfels) Ambetter, BCBSTX, Oscar Health, UnitedHealthcare, Community First (confirm exact hospital system tier in Bexar & Comal counties) Original Medicare + Medigap; major San Antonio Medicare Advantage PPO and HMO networks

3 Verification Steps for Travis, Williamson, Hays, Comal & Bexar County Residents

  1. Verify Austin Regional Clinic (ARC) & Baylor Scott & White Alignment in Greater Austin: In Travis and Williamson counties, thousands of families use Austin Regional Clinic (ARC) or Baylor Scott & White (Round Rock, Pflugerville, Lakeway & Austin). Check both your clinic group NPI and hospital admitting privileges.
  2. Check I-35 Corridor Commuter Rules (Kyle, Buda, San Marcos & New Braunfels): Hays and Comal counties sit between the Austin and San Antonio rating areas. Make sure your 2027 ACA HMO covers hospitals in Travis County (Austin) or Bexar County (San Antonio) if your specialists practice in the metro core.
  3. Confirm UT Health San Antonio & Mays Cancer Center Inclusion: Patients in San Antonio who see academic specialists at UT Health Physicians or UT Health San Antonio MD Anderson Mays Cancer Center (affiliated with University Health) should verify UT Health faculty practice inclusion on their 2027 plan.

Emergency Room Protection (No Surprises Act): Under the federal No Surprises Act and CMS Medicare emergency rules, emergency department evaluation and stabilization at any hospital ER are covered at in-network cost-sharing rates regardless of whether the hospital is in your plan's network; network tiers govern scheduled surgeries, non-emergency inpatient admissions, and outpatient clinic visits.

Frequently Asked Questions

Do 2027 Austin ACA Marketplace plans cover both Ascension Seton and St. David's HealthCare?

Select 2027 Blue Cross Blue Shield of Texas, Ambetter, Oscar Health, and UnitedHealthcare ACA plans in Travis and Williamson counties include both Ascension Seton and St. David's HealthCare, while narrow-network plans may contract with only one system or exclude Austin Regional Clinic (ARC).

What insurance does Methodist Hospital in San Antonio accept for 2027?

Methodist Healthcare hospitals in San Antonio (Methodist Hospital, Methodist Stone Oak, Methodist Children's, and Methodist Metropolitan) accept Original Medicare with Medigap, major Bexar County Medicare Advantage plans, and select 2027 BCBSTX, Ambetter, Oscar, and UnitedHealthcare ACA plans.

Are Baptist Health System and CHRISTUS Santa Rosa covered by San Antonio Medicare Advantage and ACA plans in 2027?

Yes. Baptist Health System (Tenet) and CHRISTUS Santa Rosa participate in Original Medicare with Medigap, major San Antonio Medicare Advantage PPO and HMO plans, and select 2027 Bexar and Comal County ACA Marketplace plans.

Related Regional Network Guides

Need a 2027 Austin or San Antonio Hospital & Doctor Check?

David Huff (Texas License #2414025 · NPN 18213932) helps Austin and San Antonio residents verify hospital networks, physician group NPIs, and prescription drug coverage for 2027.

We do not offer every plan available in your area. Currently we represent 10 organizations which offer 74 products in your area. Please contact www.medicare.gov or 1-800-MEDICARE, or your local State Health Insurance Program (SHIP) to get information on all of your options.

Company inventory note: The counts above reflect the licensed company inventory for the 2027 plan year in the Lakeland/Polk County service area, confirmed for ZIP 33812, as of October 1, 2026. They are not CMS counts or statewide Florida totals. Counts and available products vary by ZIP code, service area, plan year, and current company authorization. Confirm the ZIP code and current approved platform inventory before relying on these figures. Plan availability, benefits, networks, formularies, pharmacies, and costs are subject to the applicable plan documents and service area. David Huff is an independent licensed health insurance broker in Florida (License #W371813, NPN 18213932) and is not affiliated with the U.S. government, HealthCare.gov, or the federal Medicare program. In Texas, David Huff holds Texas License #2414025 (NPN 18213932). Confirmed 2027 Texas service-area inventory counts: Travis County, TX (ZIP 78701): 6 organizations / 54 products; Bexar County, TX (ZIP 78201): 7 organizations / 64 products.