Endo ak/hip knee extens assi 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.

$156.61 with Humana vs $230.22 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 $156.61
Sarah Cannon Research COMM $156.61
Wellpoint MGMCD $156.61
Zing MGMCR $161.31
WellCare MCR $161.31
Evergreen HMO MCR $164.44
United VACCN $164.44
American Health Advantage MCRSNP $164.44
American Health Advantage MCRPFFS $164.44
Healthspring MCRPPO $164.44
Healthspring MCRHMOTMN $164.44
Healthspring MCRHMONonTMN $164.44
Devoted Health Plan MCR $164.44
American Health Advantage MCRHMO $164.44
American Health Advantage MCRPOS $164.44
American Health Advantage MCRPPO $164.44
Aetna MGMCRSNP $166.08
Aetna MGMCRPPO $166.08
Aetna MGMCRHMO $166.08
ATRIO Golden Times MCR $172.27
Signature Advantage MCR $174.31
Bright Health MCRNarrow $189.11
Prime Health WORKERSCOMP $225.52
CorVel Corporation WORKERSCOMP $230.22
NovaNET WORKERSCOMP $230.22

Visitor-reported prices

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Endo ak/hip knee extens assi at other Tennessee hospitals

Hospital City Cash price Negotiated range
HENDERSONVILLE MEDICAL CENTER HENDERSONVILLE not published $151.91 – $230.22
HORIZON MEDICAL CENTER DICKSON not published $140.95 – $230.22
SKYLINE MADISON CAMPUS NASHVILLE not published $112.76 – $230.22
SOUTHERN HILLS MEDICAL CENTER ANTIOCH not published $112.76 – $230.22
STONECREST MEDICAL CENTER Smyrna not published $140.95 – $230.22
SUMMIT MEDICAL CENTER MT JULIET not published $140.95 – $230.22
Parkwest Medical Center Knoxville not published $75.03 – $164.44
Roane County Medical Center Harriman not published $156.61 – $164.44

All Tennessee hospitals for this procedure →