Knoxville & Chattanooga Hospital Insurance Accepted (2027): UT Medical Center, Covenant Health, Tennova, Erlanger & CHI Memorial
Across East Tennessee—from Knoxville, Maryville, Oak Ridge, and Sevierville down I-75 to Cleveland and Chattanooga—healthcare is anchored by The University of Tennessee Medical Center, Covenant Health (Parkwest, Fort Sanders & Methodist Oak Ridge), Tennova Healthcare, Blount Memorial, and in Chattanooga by Erlanger Health System, CHI Memorial, and Parkridge Health (HCA). Here is how 2027 Tennessee ACA and Medicare plans compare.
Check your Knoxville or Chattanooga doctors for 2027
Enter your Tennessee ZIP code and the hospitals or doctors you want to keep for a 2027 Medicare or Marketplace network check with David Huff (TN License #2489827 · NPN #18213932). A review is not enrollment.
Direct Answer: What Insurance Do Knoxville & Chattanooga Hospitals Accept in 2027?
Direct answer: In East Tennessee for 2027, UT Medical Center (Knoxville), Covenant Health (Parkwest, Fort Sanders Regional & LeConte), Blount Memorial (Prisma Health), Erlanger Health System (Chattanooga), CHI Memorial, and Parkridge Medical Center all accept Original Medicare with any Medigap supplement, while 2027 Tennessee ACA Marketplace networks (BlueCross BlueShield of Tennessee Network S vs. Network P, Cigna, Ambetter of Tennessee, UnitedHealthcare, and Oscar) split hospital access by network letter and county.
In both Knoxville and Chattanooga, the single biggest ACA Marketplace trap is BlueCross BlueShield of Tennessee (BCBST) Network S vs. Network L / Network E and Cigna Connect narrow networks, where one carrier offers multiple networks that cover completely different hospital systems across I-75.
2027 East Tennessee Hospital & Carrier Network Matrix (Knoxville & Chattanooga)
Compare 2027 ACA Marketplace and Medicare hospital participation across Knoxville and Chattanooga:
| Hospital System / Medical Group | Key Campuses & Clinics | 2027 ACA Marketplace Networks | 2027 Medicare & Medigap Access |
|---|---|---|---|
| University of Tennessee Medical Center (Knoxville) | UT Medical Center (Alcoa Hwy, Knoxville — Level I Trauma & Academic Medical Center), UT Cancer Institute, UT Regional Health Centers | BlueCross BlueShield of TN (verify Network S / Network P inclusion by county), Cigna, Ambetter of TN, UnitedHealthcare | Original Medicare + Medigap; broad East Tennessee Medicare Advantage PPO and HMO participation (BCBST BlueAdvantage, UHC, Humana, Aetna) |
| Covenant Health & Tennova Healthcare (Greater Knoxville) | Parkwest Medical Center (West Knoxville), Fort Sanders Regional, Methodist Medical Center (Oak Ridge), LeConte (Sevierville), Morristown-Hamblen, Tennova Turkey Creek & North Knoxville | BCBST (verify exact Network letter for Covenant Health vs. Tennova), Ambetter of TN, Cigna, Oscar, UnitedHealthcare | Original Medicare + Medigap; contracted Knoxville Medicare Advantage PPO and HMO plans |
| Erlanger Health System (Chattanooga) | Erlanger Baroness Hospital (Level I Trauma), Children's Hospital at Erlanger, Erlanger East Hospital (Gunbarrel Rd), Erlanger North, Erlanger Bledsoe/Sequatchie | BCBST (verify Chattanooga Network S / Network L tier), Ambetter of TN, Cigna, UnitedHealthcare | Original Medicare + Medigap; major Hamilton & Bradley County Medicare Advantage PPO and HMO networks |
| CHI Memorial & Parkridge Health System (Chattanooga / Cleveland) | CHI Memorial Hospital Chattanooga, CHI Memorial Hixson, Parkridge Medical Center (HCA), Parkridge East Hospital, Parkridge West, Tennova Healthcare - Cleveland | Ambetter of TN, BCBST (check CHI Memorial vs. Parkridge HCA sub-network), Cigna, UnitedHealthcare, Oscar | Original Medicare + Medigap; broad Medicare Advantage participation across Chattanooga and North Georgia border counties |
3 Verification Steps for Knox, Blount, Anderson, Bradley & Hamilton County Residents
- Check BlueCross BlueShield of Tennessee (BCBST) Network Letters Carefully: In Knoxville (Knox, Blount, Anderson, Sevier counties) and Chattanooga (Hamilton, Bradley counties), BCBST Marketplace plans use specific network letters (such as Network S or Network L). Confirm whether your exact network letter includes UT Medical Center and Covenant Health (in Knoxville) or Erlanger, CHI Memorial, and Parkridge (in Chattanooga).
- Verify Blount Memorial Hospital's Prisma Health Integration in Maryville: Blount Memorial Hospital in Maryville joined Prisma Health. Make sure both Blount Memorial Hospital and your Maryville primary care/specialist group NPIs match your 2027 plan directory.
- Confirm Chattanooga / North Georgia (Catoosa & Walker County) Cross-Border Rules: Families in Chattanooga, East Ridge, Ooltewah, and Signal Mountain sit right on the Georgia state line. Remember that ACA Marketplace HMO plans generally only cover non-emergency care inside your home state unless the plan specifically contracts with border-county hospitals.
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 Knoxville ACA Marketplace plans cover both UT Medical Center and Covenant Health (Parkwest & Fort Sanders)?
Select 2027 BlueCross BlueShield of Tennessee, Cigna, Ambetter of Tennessee, and UnitedHealthcare ACA plans in Knox and surrounding counties cover both UT Medical Center and Covenant Health, while narrower network tiers may include only one system or pair with Tennova.
What insurance does Erlanger Hospital in Chattanooga accept for 2027?
Erlanger Baroness Hospital, Erlanger East, and Children's Hospital at Erlanger accept Original Medicare with Medigap, major Chattanooga Medicare Advantage PPO and HMO plans, and select 2027 Tennessee ACA Marketplace plans from BCBST, Ambetter, Cigna, and UnitedHealthcare.
Are CHI Memorial and Parkridge Medical Center in Chattanooga covered on 2027 Medicare Advantage and ACA plans?
Yes. Both CHI Memorial and Parkridge Health System (HCA) accept Original Medicare with any Medigap supplement and participate in major Hamilton County Medicare Advantage networks and select 2027 ACA Marketplace tiers.
Related Regional Network Guides
Need a 2027 Knoxville or Chattanooga Plan Check?
David Huff (TN License #2489827 · NPN 18213932) helps Knoxville and Chattanooga families and Medicare beneficiaries verify UT Medical Center, Covenant Health, Erlanger, and CHI Memorial networks for 2027.