Magnesium 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

$892.58

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.

$892.58

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.

$3.02 with Wellpoint vs $2,000.00 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 $3.02 ↓ -100%
Aetna NewBusiness $5.33 ↓ -99%
Aetna COMM $5.33 ↓ -99%
United AllPayerAppendix $6.70 ↓ -99%
Humana ChoicecareMGMCR $6.70 ↓ -99%
United CorePayer $6.70 ↓ -99%
United HeritageSelect $6.70 ↓ -99%
Bright Health HIX $6.70 ↓ -99%
Bright Health SmallGroup $6.70 ↓ -99%
Sarah Cannon Research COMM $6.70 ↓ -99%
WellCare MCR $6.90 ↓ -99%
Zing MGMCR $6.90 ↓ -99%
Ambetter Select $6.97 ↓ -99%
Devoted Health Plan MCR $7.04 ↓ -99%
Healthspring MCRHMOTMN $7.04 ↓ -99%
Healthspring MCRHMONonTMN $7.04 ↓ -99%
Healthspring MCRPPO $7.04 ↓ -99%
Evergreen HMO MCR $7.04 ↓ -99%
American Health Advantage MCRPFFS $7.04 ↓ -99%
United VACCN $7.04 ↓ -99%
American Health Advantage MCRSNP $7.04 ↓ -99%
American Health Advantage MCRPPO $7.04 ↓ -99%
American Health Advantage MCRPOS $7.04 ↓ -99%
American Health Advantage MCRHMO $7.04 ↓ -99%
Aetna MGMCRHMO $7.11 ↓ -99%
Aetna MGMCRSNP $7.11 ↓ -99%
Aetna MGMCRPPO $7.11 ↓ -99%
Ambetter CORE $7.23 ↓ -99%
ATRIO Golden Times MCR $7.37 ↓ -99%
Signature Advantage MCR $7.46 ↓ -99%
Bright Health MCRNarrow $8.09 ↓ -99%
BCBS NetworkP $9.14 ↓ -99%
Prime Health WORKERSCOMP $9.65 ↓ -99%
CorVel Corporation WORKERSCOMP $9.85 ↓ -99%
NovaNET WORKERSCOMP $9.85 ↓ -99%
Cigna NewBusiness $12.12 ↓ -99%
BCBS TENNCARE $13.08 ↓ -99%
Cigna OAP $13.76 ↓ -98%
BCBS COVERKIDS $14.13 ↓ -98%
Oscar HIX $20.10 ↓ -98%
Humana HumanaChoiceCare $26.80 ↓ -97%
Humana BroadNetwork $26.80 ↓ -97%
Humana HumanaChoice $26.80 ↓ -97%
Humana NarrowExchangeNetwork $26.80 ↓ -97%
BCBS BlueCare $37.80 ↓ -96%
Kentucky Labor Cabinet WORKERSCOMP $164.32 ↓ -82%
NHC Advantage, Inc. MCRHMO $169.59 ↓ -81%
Pruitt Health (AllyAlign) MCR $169.59 ↓ -81%
Apex Health MCR $169.59 ↓ -81%
United OptionsPPO $217.79 ↓ -76%
Humana TRICARE $223.15 ↓ -75%
Amerigroup MGMCR $276.70 ↓ -69%
Cigna PPO $278.48 ↓ -69%
United GlobalBenefitPlan $401.66 ↓ -55%
Aetna NAP $446.29 ↓ -50%
BGFH SingleSource DIRECTNETWORK $446.29 ↓ -50%
Multiplan COMM $490.92 ↓ -45%
Southern Health Partners Prison $535.55 ↓ -40%
Employers Health Network COMM $624.81 ↓ -30%
Odom's TN Pride Sausage WORKERSCOMP $669.43 ↓ -25%
BGFH SingleSource LEASEDNETWORK $758.69 ↓ -15%
Beech Street COMM $821.17 ↓ -8%
BCBS MCR $2,000.00 ↑ +124%

Visitor-reported prices

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Magnesium at other Tennessee hospitals

Hospital City Cash price Negotiated range
Ascension Saint Thomas Midtown Nashville $73.44 $2.41 – $25.96
CHI Memorial Hospital Hixson Hixson $15.40 $5.95 – $36.40
62-1166050 BMH Carroll County Huntingdon $39.56 $5.83 – $13.40
CHI Memorial Hospital Chattanooga Chattanooga $22.00 $5.95 – $36.40
Johnson City Medical Center JOHNSON CITY $11.85 $2.31 – $14.61
Ascension Saint Thomas DeKalb Smithville $73.44 $4.70 – $25.96
Ascension Saint Thomas Highlands Sparta $73.44 $4.70 – $25.96
Ascension Saint Thomas River Park McMinnville $73.44 $4.70 – $25.96

All Tennessee hospitals for this procedure →