Add up-ex prosthes lock mech 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.

$703.98 with Humana vs $1,034.85 with NovaNET — 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
Humana ChoicecareMGMCR $703.98
Sarah Cannon Research COMM $703.98
Wellpoint MGMCD $703.98
Zing MGMCR $725.10
WellCare MCR $725.10
Evergreen HMO MCR $739.18
United VACCN $739.18
American Health Advantage MCRSNP $739.18
American Health Advantage MCRPFFS $739.18
Healthspring MCRPPO $739.18
Healthspring MCRHMOTMN $739.18
Healthspring MCRHMONonTMN $739.18
Devoted Health Plan MCR $739.18
American Health Advantage MCRHMO $739.18
American Health Advantage MCRPOS $739.18
American Health Advantage MCRPPO $739.18
Aetna MGMCRSNP $746.57
Aetna MGMCRPPO $746.57
Aetna MGMCRHMO $746.57
ATRIO Golden Times MCR $774.38
Signature Advantage MCR $783.53
Bright Health MCRNarrow $850.06
Prime Health WORKERSCOMP $1,013.73
CorVel Corporation WORKERSCOMP $1,034.85
NovaNET WORKERSCOMP $1,034.85

Visitor-reported prices

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Add up-ex prosthes lock mech at other Tennessee hospitals

Hospital City Cash price Negotiated range
HENDERSONVILLE MEDICAL CENTER HENDERSONVILLE not published $682.86 – $1,034.85
HORIZON MEDICAL CENTER DICKSON not published $633.58 – $1,034.85
SKYLINE MADISON CAMPUS NASHVILLE not published $506.87 – $1,034.85
SOUTHERN HILLS MEDICAL CENTER ANTIOCH not published $506.87 – $1,034.85
STONECREST MEDICAL CENTER Smyrna not published $633.58 – $1,034.85
SUMMIT MEDICAL CENTER MT JULIET not published $633.58 – $1,034.85
Parkwest Medical Center Knoxville not published $337.25 – $739.18
Roane County Medical Center Harriman not published $703.98 – $739.18

All Tennessee hospitals for this procedure →