Blood gases o2 saturation direct measurement at SSM Health Saint Louis University Hospital

1201 S Grand Blvd, Saint Louis, MO · SSM Health · · NPI 1942685920

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

$236.50

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.

Full explanation →

What you pay up front if you don't use insurance.

$430.00

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.

$46.31 with BCBS vs $136.27 with Healthlink — 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
BCBS Anthem Pathway Exchange $46.31 ↓ -80%
BCBS Anthem Blue Access Choice All Commercial Plans $47.30 ↓ -80%
BCBS Anthem Blue Preferred HMO/POS $47.30 ↓ -80%
BCBS Anthem Blue Access PPO $50.98 ↓ -78%
BCBS Anthem Medicare Managed Care Plan $77.19 ↓ -67%
UnitedHealthCare Non-PPO Other Commercial Plan $78.77 ↓ -67%
UnitedHealthCare Options PPO $78.77 ↓ -67%
Oscar Exchange $78.77 ↓ -67%
Centene Wellcare Medicare Managed Care - PPO $79.56 ↓ -66%
Humana Medicare Managed Care Plan $80.11 ↓ -66%
Aetna Advantra Medicare Managed Care Plan $80.35 ↓ -66%
Essence Medicare Managed Care Plan $81.13 ↓ -66%
UnitedHealthCare Employee $94.52 ↓ -60%
Cigna All Commercial Plans $132.63 ↓ -44%
Healthlink HMO $136.27 ↓ -42%

Visitor-reported prices

visitor-reported
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Blood gases o2 saturation direct measurement at other Missouri hospitals

Hospital City Cash price Negotiated range
SSM Health Cardinal Glennon Children's Hospital Saint Louis $271.15 $39.40 – $154.01
SSM Health St. Joseph Hospital - Lake Saint Louis Lake Saint Louis $172.70 $40.33 – $263.09
SSM Health DePaul Hospital - St. Louis Bridgeton $172.70 $40.33 – $263.09
SSM Health St. Joseph Hospital- Wentzville Wentzville $172.70 $40.33 – $263.09
SSM Health St. Joseph Hospital - St. Charles Saint Charles $172.70 $40.33 – $263.09
SSM Health St. Mary's Hospital - St. Louis Richmond Heights $172.70 $40.33 – $263.09
SSM Health St. Mary's Hospital - Jefferson City Jefferson City $380.05 $70.89 – $141.79
Mercy Hospital Carthage Carthage $209.30 $39.65 – $291.69

All Missouri hospitals for this procedure →