Ammonia at MercyOne North Iowa Medical Center

1000 4th St. SW, Mason City, IA · MercyOne · · NPI 1467537886

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

$120.90

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.

$186.00

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.

$14.12 with IOWA TOTAL CARE vs $186.00 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 $14.12 ↓ -88%
MOLINA MEDICAID MOLINA MEDICAID $14.26 ↓ -88%
MEDICARE MEDICAL ASSOCIATES HEALTH PLANS MEDICAL ASSOCIATES MEDICARE ADVANTAGE $14.28 ↓ -88%
MEDIGOLD MEDICARE ADVANTAGE MERCYONE HEALTH PLAN MEDICARE ADVANTAGE $14.28 ↓ -88%
AETNA MEDICARE ADVANTAGE AETNA MEDICARE ADVANTAGE $14.28 ↓ -88%
WELLPOINT MEDICAID WELLPOINT MEDICAID $14.31 ↓ -88%
BLUE CROSS - IA (WELLMARK) MEDICARE ADVANTAGE WELLMARK MEDICARE ADVANTAGE $14.42 ↓ -88%
UNITED HEALTHCARE MEDICARE UNITED HEALTHCARE MEDICARE ADVANTAGE $14.56 ↓ -88%
SOUTH COUNTRY HEALTH ALLIANCE MEDICARE SOUTH COUNTRY MEDICARE ADVANTAGE $14.56 ↓ -88%
GEHA UNITED HEALTHCARE $14.57 ↓ -88%
UNITED HEALTHCARE UNITED HEALTHCARE $14.57 ↓ -88%
HEALTH PARTNERS MEDICARE ADVANTAGE UNITYPOINT HEALTH PARTNERS MEDICARE ADV $14.72 ↓ -88%
WELLPOINT MEDICARE ADVANTAGE WELLPOINT MEDICARE ADVANTAGE $14.86 ↓ -88%
CENTIVO CENTIVO $17.92 ↓ -85%
OSCAR OSCAR $19.20 ↓ -84%
AMISH HOSPITAL AID AMISH HOSPITAL AID $19.38 ↓ -84%
AMBETTER AMBETTER MARKETPLACE $24.48 ↓ -80%
CLAIMDOC CLAIMDOC $29.29 ↓ -76%
NOVA CLAIMDOC $29.29 ↓ -76%
HEALTH CHOICES MEDICAL ASSOCIATES $47.62 ↓ -61%
MEDICAL ASSOCIATES MEDICAL ASSOCIATES $47.62 ↓ -61%
MEDICAL MUTUAL AETNA $97.65 ↓ -19%
AETNA AETNA $97.65 ↓ -19%
LUCENT HEALTH AETNA $97.65 ↓ -19%
TRUSTMARK SMALL BUSINESS BENEFITS AETNA $97.65 ↓ -19%
COVENTRY AETNA $97.65 ↓ -19%
ALLIED BENEFIT SYSTEMS AETNA $97.65 ↓ -19%
MERITAIN AETNA $97.65 ↓ -19%
1199 NATIONAL BENEFIT FUND AETNA $97.65 ↓ -19%
CHRISTIAN BROTHER SERVICES AETNA $97.65 ↓ -19%
LUMINARE HEALTH AETNA $97.65 ↓ -19%
AETNA EAP AETNA $97.65 ↓ -19%
ASR HEALTH BENEFITS AETNA $97.65 ↓ -19%
FIRST HEALTH AETNA $97.65 ↓ -19%
WEBTPA AETNA $97.65 ↓ -19%
AETNA DOMESTIC AETNA $97.65 ↓ -19%
PREFERRED ONE PREFERRED ONE $120.90 ↑ +0%
HEALTH PARTNERS HEALTH PARTNERS $124.43 ↑ +3%
AUXIANT MIDLANDS CHOICE PPO $130.20 ↑ +8%
CIGNA EAP MIDLANDS CHOICE PPO $130.20 ↑ +8%
MIDLANDS CHOICE MIDLANDS CHOICE PPO $130.20 ↑ +8%
MEDICA MIDLANDS CHOICE PPO $130.20 ↑ +8%
CIGNA MIDLANDS CHOICE PPO $130.20 ↑ +8%
MIDLANDS MIDLANDS CHOICE PPO $130.20 ↑ +8%
MHNET MENTAL HEALTH ASSOCIATES $148.80 ↑ +23%
MULTIPLAN MULTIPLAN $167.40 ↑ +38%
UNITED HEALTHCARE UHC OPTUM BEHAVIORAL HEALTH $186.00 ↑ +54%
CRIME VICTIM ASSISTANCE CRIME VICTIMS $186.00 ↑ +54%
IOWA DEPT OF PUBLIC HEALTH CARE FOR YOURSELF $186.00 ↑ +54%

Visitor-reported prices

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Ammonia at other Iowa hospitals

Hospital City Cash price Negotiated range
MercyOne Genesis Davenport West Medical Center Davenport $85.20 $14.57 – $14.57
MercyOne Dubuque Medical Center Dubuque $157.95 $14.12 – $243.00
MercyOne New Hampton Medical Center New Hampton $154.70 $14.42 – $238.00
MercyOne Dyersville Medical Center Dyersville $154.70 $14.42 – $267.89
MercyOne Clinton Medical Center Clinton $178.10 $14.12 – $274.00
MercyOne Oelwein Medical Center Oelwein $154.70 $14.42 – $238.00
MercyOne Cedar Falls Medical Center Cedar Falls $131.30 $14.12 – $107.00
MercyOne Elkader Medical Center Elkader $154.70 $14.42 – $248.76

All Iowa hospitals for this procedure →