Observation direct referral from physician office for admission at SSM Health St. Mary's Hospital - Centralia

400 North Pleasant Avenue, Centralia, IL · SSM Health · · NPI 1083617245

Source: hospital's published price file ↗ · Published Apr 1, 2026 · Ingested Sep 10, 2026

$572.00

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.

$1,040.00

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.

$638.18 with Molina vs $670.09 with Essence Healthcare — 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
Molina Dual Eligible Medicare/Medicaid $638.18 ↑ +12%
UnitedHealthCare Medicare Managed Care Plan $663.71 ↑ +16%
Essence Healthcare Medicare Managed Care Plan $670.09 ↑ +17%

Visitor-reported prices

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Observation direct referral from physician office for admission at other Illinois hospitals

Hospital City Cash price Negotiated range
MercyOne Genesis Silvis Medical Center Silvis $146.40 $78.08 – $4,283.45
MercyOne Genesis Aledo Medical Center Aledo $137.40 $105.34 – $703.79
Uchicago Medicine Adventhealth Hinsdale Hinsdale $193.00 $624.78 – $1,033.86
Advocate Christ Medical Center Oak Lawn $207.50 $163.51 – $11,037.00
Advocate Condell Medical Center Libertyville $207.50 $163.51 – $8,058.00
Advocate Good Samaritan Hospital Downers Grove $207.50 $163.51 – $11,037.00
UnityPoint Health - Trinity Moline Rock Island $127.13 $32.74 – $7,845.34
Uchicago Medicine Adventhealth La Grange La Grange $193.00 $624.78 – $1,033.86

All Illinois hospitals for this procedure →