Assay of neonatal thyroxine 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

$21.20

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.

$40.00

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.

$6.47 with VETERANS ADMINISTRATION vs $28.64 with ALLIANCE — 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
VETERANS ADMINISTRATION 1114_VETERANS ADMINISTRATION INPATIENT 20221001 $6.47 ↓ -69%
MEDICARE REPLACEMENT 1109_MEDICARE REPLACEMENT OUTPATIENT 20220701 $6.47 ↓ -69%
MEDICARE REPLACEMENT 1116_MEDICARE REPLACEMENT INPATIENT 20221001 $6.47 ↓ -69%
VETERANS ADMINISTRATION 1064_VETERANS ADMINISTRATION OUTPATIENT 20220101 $6.47 ↓ -69%
ANTHEM BLUE CONNECTION 1117_ANTHEM BLUE CONNECTION 20221001 $6.79 ↓ -68%
HUMANA WVN 1135_HUMANA WVN 20221001 $8.67 ↓ -59%
UHC NON OPTIONS PPO 1130_UNITED HEALTH CARE NONOPTIONS 20221001 $8.93 ↓ -58%
CCHP MARKETPLACE 1124_CCHP MARKETPLACE 20221001 $8.98 ↓ -58%
NETWORK HEALTH PLAN 1136_NETWORK HEALTH PLAN 20221001 $11.00 ↓ -48%
HUMANA PPO 1133_HUMANA PPO 20221001 $13.31 ↓ -37%
HUMANA HMO POS 1127_HUMANA 20221001 $13.31 ↓ -37%
HUMANA PREFERRED 1134_HUMANA PREFERRED 20221001 $13.31 ↓ -37%
MOLINA HEALTH MARKETPLACE 1060_MOLINA MARKETPLACE OUTPATIENT 20220101 $14.23 ↓ -33%
MOLINA HEALTH MARKETPLACE 1111_MOLINA MARKETPLACE INPATIENT 20221001 $14.23 ↓ -33%
SEHN C89 1128_SEHN 20221001 $15.31 ↓ -28%
ANTHEM PATHWAYS 1121_ANTHEM PATHWAYS 20221001 $24.97 ↑ +18%
ANTHEM PPO 1122_ANTHEM PPO 20221001 $24.97 ↑ +18%
ANTHEM HMO POS 1120_ANTHEM HMO POS 20221001 $24.97 ↑ +18%
ALLIANCE 1066_ALLIANCE 20220101 $28.64 ↑ +35%

Visitor-reported prices

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Assay of neonatal thyroxine 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 not published $6.47 – $28.64
UnityPoint Health - Meriter Hospital Madison not published $3.88 – $10.06
Orthopaedic Hospital of Wisconsin, LLC Glendale not published $6.28 – $11.60
SSM Health St. Clare Hospital - Baraboo Baraboo not published $4.85 – $64.28
SSM Health St. Mary's Hospital - Janesville Janesville not published $4.85 – $51.42
SSM Health St. Mary's Hospital - Madison Madison not published $4.85 – $52.61
SSM Health Monroe Hospital Monroe not published $6.47 – $11.32
SSM Health Ripon Community Hospital Ripon not published $6.47 – $13.08

All Wisconsin hospitals for this procedure →