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Mayo ld_i lactate dehydrogenase isoenzymes at MercyOne Waterloo Medical Center

3421 W. 9th St, Waterloo, IA · MercyOne · · NPI 1700827896

Source: hospital's published price file ↗ · Published Mar 31, 2026 · Ingested Aug 3, 2026

$146.90

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.

$226.00

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.

$12.39 with IOWA TOTAL CARE vs $226.00 with IOWA DEPT OF PUBLIC HEALTH — 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
IOWA TOTAL CARE IOWA TOTAL CARE MEDICAID $12.39 ↓ -92%
MOLINA MEDICAID MOLINA MEDICAID $12.51 ↓ -91%
MEDIGOLD MEDICARE ADVANTAGE MERCYONE HEALTH PLAN MEDICARE ADVANTAGE $12.53 ↓ -91%
AETNA MEDICARE ADVANTAGE AETNA MEDICARE ADVANTAGE $12.53 ↓ -91%
MEDICARE MEDICAL ASSOCIATES HEALTH PLANS MEDICAL ASSOCIATES MEDICARE ADVANTAGE $12.53 ↓ -91%
WELLPOINT MEDICAID WELLPOINT MEDICAID $12.56 ↓ -91%
BLUE CROSS - IA (WELLMARK) MEDICARE ADVANTAGE WELLMARK MEDICARE ADVANTAGE $12.66 ↓ -91%
UNITED HEALTHCARE MEDICARE UNITED HEALTHCARE MEDICARE ADVANTAGE $12.78 ↓ -91%
UNITED HEALTHCARE UNITED HEALTHCARE $12.79 ↓ -91%
GEHA UNITED HEALTHCARE $12.79 ↓ -91%
HEALTH PARTNERS MEDICARE ADVANTAGE UNITYPOINT HEALTH PARTNERS MEDICARE ADV $12.92 ↓ -91%
WELLPOINT MEDICARE ADVANTAGE WELLPOINT MEDICARE ADVANTAGE $13.05 ↓ -91%
AMISH HOSPITAL AID AMISH HOSPITAL AID $17.01 ↓ -88%
OSCAR OSCAR $19.63 ↓ -87%
CENTIVO CENTIVO $21.23 ↓ -86%
AMBETTER AMBETTER MARKETPLACE $21.49 ↓ -85%
NOVA CLAIMDOC $25.71 ↓ -82%
CLAIMDOC CLAIMDOC $25.71 ↓ -82%
AETNA DOMESTIC AETNA $34.81 ↓ -76%
COVENTRY AETNA $34.81 ↓ -76%
LUCENT HEALTH AETNA $34.81 ↓ -76%
LUMINARE HEALTH AETNA $34.81 ↓ -76%
MEDICAL MUTUAL AETNA $34.81 ↓ -76%
CHRISTIAN BROTHER SERVICES AETNA $34.81 ↓ -76%
MERITAIN AETNA $34.81 ↓ -76%
ASR HEALTH BENEFITS AETNA $34.81 ↓ -76%
AETNA AETNA $34.81 ↓ -76%
ALLIED BENEFIT SYSTEMS AETNA $34.81 ↓ -76%
WEBTPA AETNA $34.81 ↓ -76%
AETNA EAP AETNA $34.81 ↓ -76%
FIRST HEALTH AETNA $34.81 ↓ -76%
HEALTH CHOICES MEDICAL ASSOCIATES $53.11 ↓ -64%
MEDICAL ASSOCIATES MEDICAL ASSOCIATES $53.11 ↓ -64%
HEALTH PARTNERS HEALTH PARTNERS $148.26 ↑ +1%
AUXIANT MIDLANDS CHOICE PPO $160.46 ↑ +9%
MEDICA MIDLANDS CHOICE PPO $160.46 ↑ +9%
MIDLANDS MIDLANDS CHOICE PPO $160.46 ↑ +9%
CIGNA EAP MIDLANDS CHOICE PPO $160.46 ↑ +9%
MIDLANDS CHOICE MIDLANDS CHOICE PPO $160.46 ↑ +9%
CIGNA MIDLANDS CHOICE PPO $160.46 ↑ +9%
UNITED HEALTHCARE UNITED HEALTHCARE DEERE PREMIER $210.18 ↑ +43%
UNITED HEALTHCARE UHC OPTUM BEHAVIORAL HEALTH $226.00 ↑ +54%
IOWA DEPT OF PUBLIC HEALTH CARE FOR YOURSELF $226.00 ↑ +54%

Visitor-reported prices

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Mayo ld_i lactate dehydrogenase isoenzymes at other Iowa hospitals

Hospital City Cash price Negotiated range
UnityPoint Health - Allen Hospital Waterloo $64.28 $7.67 – $42.34
MercyOne Genesis Davenport West Medical Center Davenport $48.60 $12.79 – $12.79
MercyOne Dubuque Medical Center Dubuque $146.90 $12.39 – $205.00
MercyOne New Hampton Medical Center New Hampton $65.00 $39.59 – $100.00
MercyOne Dyersville Medical Center Dyersville $65.00 $37.80 – $112.56
MercyOne Clinton Medical Center Clinton $136.50 $12.39 – $205.00
MercyOne Cedar Falls Medical Center Cedar Falls $146.90 $12.39 – $226.00
MercyOne Elkader Medical Center Elkader $65.00 $51.47 – $104.52

All Iowa hospitals for this procedure →