Assay myeloperoxidase at Advocate Good Samaritan Hospital

3815 Highland Avenue, Downers Grove, IL · Advocate Health · · NPI 1578670543

Source: hospital's published price file ↗ · Published Nov 4, 2025 · Ingested Aug 13, 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.

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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.

$50.86 with United Healthcare Nexus vs $230.66 with Cigna — 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
United Healthcare Nexus Commercial $50.86
United Healthcare HMO $50.86
United Healthcare Charter Commercial $50.86
United Healthcare Core Navigate Commercial $50.86
Blue Cross Blue Shield City of Chicago Commercial $61.96
Blue Cross Blue Shield Choice Commercial $67.00
Blue Cross Blue Shield PPO $70.51
Ambetter Medicare Advantage $73.75
Molina Medicare Advantage $73.75
Oscar Health HMO Medicare Advantage $76.29
HSTechnology Medicare Advantage $97.65
Cigna One Health Commercial $230.66
Cigna Commercial $230.66

Visitor-reported prices

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Assay myeloperoxidase at other Illinois hospitals

Hospital City Cash price Negotiated range
Uchicago Medicine Adventhealth Hinsdale Hinsdale $18.75 $22.69 – $82.39
UnityPoint Health - Trinity Moline Rock Island $102.40 $3.50 – $81.38
Uchicago Medicine Adventhealth La Grange La Grange $18.75 $22.69 – $82.39
SSM Health Good Samaritan Hospital - Mt. Vernon Mount Vernon $47.30 $50.86 – $53.40
SSM Health St. Mary's Hospital - Centralia Centralia $47.30 $50.86 – $53.40
Ascension Saint Joseph - Chicago (Presence Chicago Hospital Network) Chicago $36.63 $24.75 – $211.13
Uchicago Medicine Adventhealth Bolingbrook Bolingbrook $18.75 $22.69 – $82.39
Uchicago Medicine Adventhealth Glenoaks Glendale Heights $18.75 $22.69 – $82.39

All Illinois hospitals for this procedure →