Mayo legionella antibody at CENTENNIAL MEDICAL CENTER AT ASHLAND CITY

313 NORTH MAIN STREET, Ashland City, TN · Tristarhealth · · NPI 1265487193

Source: hospital's published price file ↗ · Published Mar 1, 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.

$6.89 with Wellpoint vs $61.20 with Humana — 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 $6.89
Aetna COMM $12.17
Aetna NewBusiness $12.17
BCBS TENNCARE $13.78
BCBS COVERKIDS $14.88
United CorePayer $15.30
United HeritageSelect $15.30
Humana ChoicecareMGMCR $15.30
Bright Health SmallGroup $15.30
Bright Health HIX $15.30
Sarah Cannon Research COMM $15.30
United AllPayerAppendix $15.30
WellCare MCR $15.76
Zing MGMCR $15.76
Ambetter Select $15.91
American Health Advantage MCRPOS $16.07
United VACCN $16.07
American Health Advantage MCRHMO $16.07
Devoted Health Plan MCR $16.07
American Health Advantage MCRPPO $16.07
American Health Advantage MCRSNP $16.07
American Health Advantage MCRPFFS $16.07
Evergreen HMO MCR $16.07
Healthspring MCRPPO $16.07
Healthspring MCRHMONonTMN $16.07
Healthspring MCRHMOTMN $16.07
Aetna MGMCRHMO $16.23
Aetna MGMCRPPO $16.23
Aetna MGMCRSNP $16.23
Ambetter CORE $16.53
ATRIO Golden Times MCR $16.83
Signature Advantage MCR $17.03
Bright Health MCRNarrow $18.47
BCBS NetworkP $20.55
Prime Health WORKERSCOMP $22.03
NovaNET WORKERSCOMP $22.49
CorVel Corporation WORKERSCOMP $22.49
Cigna NewBusiness $27.10
Cigna OAP $30.78
BCBS BlueCare $39.82
Oscar HIX $45.90
Humana BroadNetwork $61.20
Humana HumanaChoiceCare $61.20
Humana NarrowExchangeNetwork $61.20
Humana HumanaChoice $61.20

Visitor-reported prices

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Mayo legionella antibody at other Tennessee hospitals

Hospital City Cash price Negotiated range
Ascension Saint Thomas Midtown Nashville $77.12 $5.51 – $58.71
CHI Memorial Hospital Hixson Hixson $20.13 $13.59 – $47.60
CHI Memorial Hospital Chattanooga Chattanooga $28.77 $13.59 – $47.60
Johnson City Medical Center JOHNSON CITY $26.25 $7.65 – $33.35
Ascension Saint Thomas DeKalb Smithville $77.12 $10.73 – $58.71
Ascension Saint Thomas Highlands Sparta $77.12 $10.73 – $58.71
Ascension Saint Thomas River Park McMinnville $77.12 $10.73 – $58.71
Ascension Saint Thomas Rutherford Murfreesboro $77.12 $13.77 – $58.71

All Tennessee hospitals for this procedure →