Carbon dioxide at SOUTHERN HILLS MEDICAL CENTER

2127 CENTURY FARMS PKWY, ANTIOCH, TN · Tristarhealth · · NPI 1720032345

Source: hospital's published price file ↗ · Published Mar 12, 2026 · Ingested Sep 16, 2026

not published by hospital

Cash price

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Discounted cash price

What a hospital charges a self-pay patient who pays directly, without going through insurance — usually well below the gross charge.

Example: A CT scan has a $3,200 gross charge but an $850 discounted cash price. Ask for it by name when scheduling — hospitals don't always advertise it up front.

Full explanation →

What you pay up front if you don't use insurance.

not published by hospital

Gross charge

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Gross charge (chargemaster price)

The hospital's full, undiscounted list price — pulled from its internal "chargemaster" price list. Almost no one actually pays this.

Example: A chest X-ray has a gross charge of $1,450. The same hospital's discounted cash price for the same X-ray is $180 — the gross charge mostly anchors negotiations, not what patients pay.

Full explanation →

The hospital's undiscounted list price — almost no one pays this.

$2.20 with Wellpoint vs $288.96 with Beech Street — same scan, same building. Share

Negotiated rates by payer
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Negotiated rate

The price a specific insurance plan agreed to pay the hospital for a service — it varies by insurer, and even by plan within the same insurer.

Example: The same knee MRI has a negotiated rate of $904 with one insurer's PPO plan and $1,509 with another's — identical hospital, identical scan.

Full explanation →

Payer
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Payer

The insurance company footing the bill — Aetna, UnitedHealthcare, Medicare, and so on.

Example: "Blue Cross Blue Shield" is the payer. Its negotiated rate for an MRI might be $904, while a different payer's negotiated rate for the same scan is $1,509.

Full explanation →
Plan
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Plan

The specific product an insurer sells — e.g. "Blue Cross PPO 500" — which sets your deductible, coinsurance and negotiated rates.

Example: Two people both insured by Aetna can owe very different amounts for the same MRI: $50 with an HMO plan's flat copay, or the full $1,200 toward a high-deductible PPO plan's unmet deductible.

Full explanation →
Negotiated rate vs. cash
Wellpoint MGMCD $2.20
Aetna NewBusiness $3.88
Aetna COMM $3.88
Humana ChoicecareMGMCR $4.88
Devoted Health Plan MCR $4.88
Bright Health SmallGroup $4.88
Bright Health HIX $4.88
HealthSpring DualEligible $4.88
HealthSpring MCRHMO $4.88
HealthSpring MCRPOS $4.88
HealthSpring MCRPPO $4.88
United CorePayer $4.88
Odyssey Healthcare COMM $4.88
Sarah Cannon Research COMM $4.88
Amerigroup MGMCR $4.88
United VACCN $4.88
United AllPayerAppendix $4.88
United HeritageSelect $4.88
Aetna MGMCRPPO $4.93
Aetna MGMCRSNP $4.93
Aetna MGMCRHMO $4.93
United MGMCR $4.98
Zing MGMCR $5.03
WellCare MCR $5.03
BCBS MCR $5.03
Ambetter Select $5.08
Evergreen HMO MCR $5.12
American Health Advantage MCRHMO $5.12
American Health Advantage MCRPOS $5.12
American Health Advantage MCRPPO $5.12
American Health Advantage MCRSNP $5.12
American Health Advantage MCRPFFS $5.12
Signature Advantage MCR $5.17
Ambetter CORE $5.27
ATRIO Golden Times MCR $5.37
Bright Health MCRNarrow $5.61
BCBS NetworkP $6.67
Prime Health WORKERSCOMP $7.03
CorVel Corporation WORKERSCOMP $7.17
NovaNET WORKERSCOMP $7.17
Cigna NewBusiness $8.66
Cigna OAP $9.83
Oscar HIX $14.64
BCBS TENNCARE $15.96
BCBS COVERKIDS $17.26
Humana HumanaChoice $19.52
Humana NarrowExchangeNetwork $19.52
Humana HumanaChoiceCare $19.52
Humana BroadNetwork $19.52
BCBS BlueCare $26.82
Kentucky Labor Cabinet WORKERSCOMP $60.45
Apex Health MCR $62.39
Pruitt Health (AllyAlign) MCR $62.39
NHC Advantage, Inc. MCRHMO $62.39
Humana TRICARE $82.09
United OptionsPPO $97.52
Cigna PPO $107.05
Centurion PRISON $135.28
United GlobalBenefitPlan $147.76
Aetna NAP $164.18
BGFH SingleSource DIRECTNETWORK $164.18
Multiplan COMM $190.45
Employers Health Network COMM $229.85
Odom's TN Pride Sausage WORKERSCOMP $246.27
BGFH SingleSource LEASEDNETWORK $279.11
Prime Health COMMPPO $288.96
Beech Street COMM $288.96

Visitor-reported prices

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Carbon dioxide at other Tennessee hospitals

Hospital City Cash price Negotiated range
Ascension Saint Thomas Midtown Nashville $67.25 $1.76 – $19.17
CHI Memorial Hospital Hixson Hixson $7.40 $4.34 – $17.50
62-1166050 BMH Carroll County Huntingdon $48.76 $4.25 – $9.76
CHI Memorial Hospital Chattanooga Chattanooga $10.58 $4.34 – $17.50
Johnson City Medical Center JOHNSON CITY $8.70 $2.44 – $10.64
Ascension Saint Thomas DeKalb Smithville $67.25 $3.44 – $19.17
Ascension Saint Thomas Highlands Sparta $67.25 $3.44 – $19.17
Ascension Saint Thomas River Park McMinnville $67.25 $3.44 – $19.17

All Tennessee hospitals for this procedure →