Chloride 24 hour urine at SSM Health St. Mary's Hospital - Madison

700 South Park St, Madison, WI · SSM Health · · NPI 1902290034

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

$41.25

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.

$75.00

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.

$4.31 with Molina vs $43.98 with BCBS — 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 Medicare Managed Care Plan $4.31 ↓ -90%
Dean Health Plan Medicare Managed Care Plan $5.75 ↓ -86%
Centivo Broad(WI2) Other Commercial Plan $7.19 ↓ -83%
The Alliance All Commercial Plans $10.06 ↓ -76%
BCBS Blue Preferred/Blue Preferred Plus HMO/POS $40.89 ↓ -1%
BCBS Blue Access PPO $43.98 ↑ +7%
BCBS Anthem Blue Traditional Traditional $43.98 ↑ +7%

Visitor-reported prices

visitor-reported
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Chloride 24 hour urine at other Wisconsin hospitals

Hospital City Cash price Negotiated range
UnityPoint Health - Meriter Hospital Madison $67.94 $3.45 – $26.50
Ascension Columbia St. Mary's Hospital - Milwaukee Campus (Columbia St. Mary's Hospital Milwaukee, Inc.) Milwaukee $38.16 $5.75 – $21.78
Ascension Columbia St. Mary's Hospital - Ozaukee Campus (Columbia St. Mary's Hospital Milwaukee, Inc.) Mequon $38.16 $5.75 – $21.78
SSM Health St. Clare Hospital - Baraboo Baraboo $49.50 $4.31 – $49.99
SSM Health St. Mary's Hospital - Janesville Janesville $59.95 $4.31 – $39.98
SSM Health Monroe Hospital Monroe $33.55 $5.75 – $10.06
SSM Health Ripon Community Hospital Ripon $46.75 $5.75 – $10.18
SSM Health St. Agnes Hospital - Fond du Lac Fond Du Lac $46.75 $4.31 – $11.10

All Wisconsin hospitals for this procedure →