Antithrombin iii activity 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.

$5.33 with Wellpoint vs $60.95 with BCBS — 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 $5.33
Aetna NewBusiness $9.42
Aetna COMM $9.42
Bright Health SmallGroup $11.85
Bright Health HIX $11.85
Sarah Cannon Research COMM $11.85
United AllPayerAppendix $11.85
Humana ChoicecareMGMCR $11.85
United HeritageSelect $11.85
United CorePayer $11.85
WellCare MCR $12.21
Zing MGMCR $12.21
Ambetter Select $12.32
American Health Advantage MCRPOS $12.44
United VACCN $12.44
American Health Advantage MCRHMO $12.44
Devoted Health Plan MCR $12.44
American Health Advantage MCRPPO $12.44
American Health Advantage MCRSNP $12.44
American Health Advantage MCRPFFS $12.44
Evergreen HMO MCR $12.44
Healthspring MCRPPO $12.44
Healthspring MCRHMONonTMN $12.44
Healthspring MCRHMOTMN $12.44
Aetna MGMCRSNP $12.57
Aetna MGMCRHMO $12.57
Aetna MGMCRPPO $12.57
Ambetter CORE $12.80
ATRIO Golden Times MCR $13.04
Signature Advantage MCR $13.19
Bright Health MCRNarrow $14.31
BCBS NetworkP $16.17
Prime Health WORKERSCOMP $17.06
NovaNET WORKERSCOMP $17.42
CorVel Corporation WORKERSCOMP $17.42
BCBS TENNCARE $21.09
Cigna NewBusiness $21.33
BCBS COVERKIDS $22.78
Cigna OAP $24.23
Oscar HIX $35.55
Humana HumanaChoiceCare $47.40
Humana BroadNetwork $47.40
Humana HumanaChoice $47.40
Humana NarrowExchangeNetwork $47.40
BCBS BlueCare $60.95

Visitor-reported prices

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Antithrombin iii activity at other Tennessee hospitals

Hospital City Cash price Negotiated range
Ascension Saint Thomas Midtown Nashville $19.44 $4.27 – $46.28
CHI Memorial Hospital Hixson Hixson $22.50 $10.53 – $53.20
62-1166050 BMH Carroll County Huntingdon $39.56 $10.31 – $23.70
CHI Memorial Hospital Chattanooga Chattanooga $32.15 $10.53 – $53.20
Johnson City Medical Center JOHNSON CITY $20.70 $4.63 – $25.83
Ascension Saint Thomas DeKalb Smithville $19.44 $8.32 – $46.28
Ascension Saint Thomas Highlands Sparta $19.44 $8.32 – $46.28
Ascension Saint Thomas River Park McMinnville $19.44 $8.32 – $46.28

All Tennessee hospitals for this procedure →