Sialidase enzyme assay at HENDERSONVILLE MEDICAL CENTER

355 NEW SHACKLE ISLAND ROAD, HENDERSONVILLE, TN · Tristarhealth · · NPI 1538114434

Source: hospital's published price file ↗ · Published Mar 1, 2026 · Ingested Sep 16, 2026

$12.22

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.

$12.22

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.

$2.25 with Kentucky Labor Cabinet vs $48.88 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
Kentucky Labor Cabinet WORKERSCOMP $2.25 ↓ -82%
Apex Health MCR $2.32 ↓ -81%
Pruitt Health (AllyAlign) MCR $2.32 ↓ -81%
NHC Advantage, Inc. MCRHMO $2.32 ↓ -81%
Humana TRICARE $3.06 ↓ -75%
United OptionsPPO $3.08 ↓ -75%
Cigna PPO $4.11 ↓ -66%
Wellpoint MGMCD $5.50 ↓ -55%
United GlobalBenefitPlan $5.50 ↓ -55%
BGFH SingleSource DIRECTNETWORK $6.11 ↓ -50%
Aetna NAP $6.11 ↓ -50%
Employers Health Network COMM $8.55 ↓ -30%
Odom's TN Pride Sausage WORKERSCOMP $9.16 ↓ -25%
Aetna NewBusiness $9.72 ↓ -20%
Aetna COMM $9.72 ↓ -20%
Multiplan COMM $10.02 ↓ -18%
BGFH SingleSource LEASEDNETWORK $10.39 ↓ -15%
Beech Street COMM $11.24 ↓ -8%
Devoted Health Plan MCR $12.22 ↑ +0%
Humana ChoicecareMGMCR $12.22 ↑ +0%
HealthSpring DualEligible $12.22 ↑ +0%
HealthSpring MCRHMO $12.22 ↑ +0%
HealthSpring MCRPOS $12.22 ↑ +0%
HealthSpring MCRPPO $12.22 ↑ +0%
United VACCN $12.22 ↑ +0%
United AllPayerAppendix $12.22 ↑ +0%
United CorePayer $12.22 ↑ +0%
United HeritageSelect $12.22 ↑ +0%
Amerigroup MGMCR $12.22 ↑ +0%
Bright Health HIX $12.22 ↑ +0%
Bright Health SmallGroup $12.22 ↑ +0%
Sarah Cannon Research COMM $12.22 ↑ +0%
Aetna MGMCRPPO $12.34 ↑ +1%
Aetna MGMCRSNP $12.34 ↑ +1%
Aetna MGMCRHMO $12.34 ↑ +1%
United MGMCR $12.46 ↑ +2%
Zing MGMCR $12.59 ↑ +3%
BCBS MCR $12.59 ↑ +3%
WellCare MCR $12.59 ↑ +3%
Ambetter Select $12.71 ↑ +4%
Evergreen HMO MCR $12.83 ↑ +5%
American Health Advantage MCRHMO $12.83 ↑ +5%
American Health Advantage MCRSNP $12.83 ↑ +5%
American Health Advantage MCRPPO $12.83 ↑ +5%
American Health Advantage MCRPOS $12.83 ↑ +5%
American Health Advantage MCRPFFS $12.83 ↑ +5%
Signature Advantage MCR $12.95 ↑ +6%
Ambetter CORE $13.20 ↑ +8%
ATRIO Golden Times MCR $13.44 ↑ +10%
Bright Health MCRNarrow $14.05 ↑ +15%
BCBS NetworkP $16.67 ↑ +36%
Prime Health WORKERSCOMP $17.60 ↑ +44%
CorVel Corporation WORKERSCOMP $17.96 ↑ +47%
NovaNET WORKERSCOMP $17.96 ↑ +47%
Cigna NewBusiness $21.91 ↑ +79%
BCBS TENNCARE $24.63 ↑ +102%
Cigna OAP $24.88 ↑ +104%
BCBS COVERKIDS $26.66 ↑ +118%
Oscar HIX $36.66 ↑ +200%
BCBS BlueCare $41.88 ↑ +243%
Humana NarrowExchangeNetwork $48.88 ↑ +300%
Humana HumanaChoice $48.88 ↑ +300%
Humana BroadNetwork $48.88 ↑ +300%
Humana HumanaChoiceCare $48.88 ↑ +300%

Visitor-reported prices

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Sialidase enzyme assay at other Tennessee hospitals

Hospital City Cash price Negotiated range
Hancock County Hospital SNEEDVILLE $20.93 $8.66 – $26.71
Greeneville Community Hospital GREENEVILLE $21.30 $5.50 – $26.64
Bristol Regional Medical Center BRISTOL $21.30 $6.11 – $29.33
Holston Valley Medical Center KINGSPORT $21.30 $6.11 – $29.33
Hawkins County Memorial Hospital ROGERSVILLE $21.30 $6.11 – $26.64
SOUTHERN HILLS MEDICAL CENTER ANTIOCH $48.88 $5.50 – $36.66
Ascension Saint Thomas Midtown Nashville not published $4.40 – $47.40
Ascension Saint Thomas DeKalb Smithville not published $8.57 – $47.40

All Tennessee hospitals for this procedure →