Ammonia at SSM Health Monroe Hospital

515 22Nd Ave, Monroe, WI · SSM Health · · NPI 1073653523

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

$63.80

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.

$116.00

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.

$14.57 with Aetna vs $40.07 with Aetna — 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
Aetna Medicare Managed Care Plan $14.57 ↓ -77%
BCBS Blue Preferred / Blue Preferred Plus HMO/POS $17.34 ↓ -73%
Centivo Median(WI2) Other Commercial Plan $18.21 ↓ -71%
BCBS Blue Access PPO $24.70 ↓ -61%
BCBS Blue Traditional Traditional $24.70 ↓ -61%
The Alliance All Commercial Plans $25.50 ↓ -60%
Aetna All Commercial Plans $40.07 ↓ -37%

Visitor-reported prices

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Ammonia at other Wisconsin hospitals

Hospital City Cash price Negotiated range
Ascension Columbia St. Mary's Hospital - Milwaukee Campus (Columbia St. Mary's Hospital Milwaukee, Inc.) Milwaukee $102.82 $14.57 – $63.05
Ascension Columbia St. Mary's Hospital - Ozaukee Campus (Columbia St. Mary's Hospital Milwaukee, Inc.) Mequon $102.82 $14.57 – $63.05
UnityPoint Health - Meriter Hospital Madison $343.51 $8.74 – $133.97
Orthopaedic Hospital of Wisconsin, LLC Glendale $69.96 $14.13 – $26.11
SSM Health St. Clare Hospital - Baraboo Baraboo $154.00 $10.93 – $144.84
SSM Health St. Mary's Hospital - Janesville Janesville $186.45 $10.93 – $115.87
SSM Health St. Mary's Hospital - Madison Madison $129.80 $10.93 – $118.52
SSM Health Ripon Community Hospital Ripon $126.50 $14.57 – $29.50

All Wisconsin hospitals for this procedure →