Biotinidase - quest 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

$82.50

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.

$165.00

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.

$16.87 with United Healthcare vs $94.02 with Blue Cross Blue Shield — 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 HMO $16.87 ↓ -80%
United Healthcare Nexus Commercial $16.87 ↓ -80%
United Healthcare Core Navigate Commercial $16.87 ↓ -80%
United Healthcare Charter Commercial $16.87 ↓ -80%
Advocate Employee Commercial $19.70 ↓ -76%
Ambetter Medicare Advantage $24.46 ↓ -70%
Molina Medicare Advantage $24.46 ↓ -70%
Oscar Health HMO Medicare Advantage $25.31 ↓ -69%
Private Healthcare Systems Commercial $31.00 ↓ -62%
HSTechnology Medicare Advantage $32.39 ↓ -61%
Blue Cross Blue Shield Blue Precision Managed Care $38.65 ↓ -53%
Blue Cross Blue Shield HMO $39.40 ↓ -52%
Multiplan Commercial $40.00 ↓ -52%
Cigna One Health Commercial $77.38 ↓ -6%
Cigna Commercial $77.38 ↓ -6%
Blue Cross Blue Shield City of Chicago Commercial $82.60 ↑ +0%
Blue Cross Blue Shield Choice Commercial $89.33 ↑ +8%
Aetna Commercial $91.42 ↑ +11%
Blue Cross Blue Shield PPO $94.02 ↑ +14%

Visitor-reported prices

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Biotinidase - quest at other Illinois hospitals

Hospital City Cash price Negotiated range
MercyOne Genesis Silvis Medical Center Silvis $75.60 $9.81 – $92.00
MercyOne Genesis Aledo Medical Center Aledo $75.60 $19.40 – $47.00
Uchicago Medicine Adventhealth Hinsdale Hinsdale $40.00 $16.52 – $27.33
Advocate Christ Medical Center Oak Lawn $82.50 $16.87 – $91.42
Advocate Condell Medical Center Libertyville $82.50 $16.87 – $91.42
UnityPoint Health - Trinity Moline Rock Island $64.28 $3.50 – $35.43
Uchicago Medicine Adventhealth La Grange La Grange $40.00 $16.52 – $27.33
SSM Health Good Samaritan Hospital - Mt. Vernon Mount Vernon $56.10 $16.87 – $17.71

All Illinois hospitals for this procedure →