Acetazolamide 500 mg solution for injection at Ascension Columbia St. Mary's Hospital - Ozaukee Campus (Columbia St. Mary's Hospital Milwaukee, Inc.)

13111 N Port Washington Rd, Mequon, WI · Ascension · · NPI 1316000706

Source: hospital's published price file ↗ · Published Jan 1, 2026 · Ingested Sep 8, 2026

$71.40

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.

$134.72

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.

$27.52 with ALLIANCE vs $90.59 with ANTHEM PATHWAYS — 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
ALLIANCE 1066_ALLIANCE 20220101 $27.52 ↓ -61%
HUMANA HMO POS 1127_HUMANA 20221001 $30.75 ↓ -57%
HUMANA PREFERRED 1134_HUMANA PREFERRED 20221001 $30.75 ↓ -57%
HUMANA PPO 1133_HUMANA PPO 20221001 $30.75 ↓ -57%
UHC NON OPTIONS PPO 1130_UNITED HEALTH CARE NONOPTIONS 20221001 $35.67 ↓ -50%
TRILOGY 1070_TRILOGY 20220101 $38.12 ↓ -47%
CCHP MARKETPLACE 1124_CCHP MARKETPLACE 20221001 $46.40 ↓ -35%
MEDICAID REPLACEMENT OCWI 1084_MEDICAID REPLACEMENT OCWI 20220101 $48.07 ↓ -33%
ANTHEM BLUE CONNECTION 1117_ANTHEM BLUE CONNECTION 20221001 $85.77 ↑ +20%
ANTHEM PATHWAYS 1121_ANTHEM PATHWAYS 20221001 $90.59 ↑ +27%

Visitor-reported prices

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Acetazolamide 500 mg solution for injection 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 $71.40 $27.52 – $90.59
Ascension NE Wisconsin - Mercy Campus (Ascension NE Wisconsin, Inc.) Oshkosh $83.31 $36.85 – $146.15
Ascension St. Francis Hospital, Inc. Milwaukee $71.40 $26.59 – $65.94
Ascension SE Wisconsin Hospital - St. Joseph Campus Milwaukee $96.78 $26.59 – $65.94
Ascension NE Wisconsin - St. Elizabeth Campus (Ascension NE Wisconsin, Inc.) Appleton $89.25 $36.85 – $156.58
Adventhealth Durand Durand $140.28 not published
SSM Health St. Clare Hospital - Baraboo Baraboo not published $27.64 – $40.00
SSM Health St. Mary's Hospital - Janesville Janesville not published $27.64 – $40.00

All Wisconsin hospitals for this procedure →