Mayo vitamin b3 (niacin) 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

$161.85

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.

$249.00

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.

$16.53 with IOWA TOTAL CARE vs $240.00 with UNITED HEALTHCARE — 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 $16.53 ↓ -90%
MOLINA MEDICAID MOLINA MEDICAID $16.70 ↓ -90%
MEDIGOLD MEDICARE ADVANTAGE MERCYONE HEALTH PLAN MEDICARE ADVANTAGE $16.72 ↓ -90%
MEDICARE MEDICAL ASSOCIATES HEALTH PLANS MEDICAL ASSOCIATES MEDICARE ADVANTAGE $16.72 ↓ -90%
AETNA MEDICARE ADVANTAGE AETNA MEDICARE ADVANTAGE $16.72 ↓ -90%
WELLPOINT MEDICAID WELLPOINT MEDICAID $16.76 ↓ -90%
BLUE CROSS - IA (WELLMARK) MEDICARE ADVANTAGE WELLMARK MEDICARE ADVANTAGE $16.89 ↓ -90%
UNITED HEALTHCARE MEDICARE UNITED HEALTHCARE MEDICARE ADVANTAGE $17.05 ↓ -89%
GEHA UNITED HEALTHCARE $17.06 ↓ -89%
UNITED HEALTHCARE UNITED HEALTHCARE $17.06 ↓ -89%
HEALTH PARTNERS MEDICARE ADVANTAGE UNITYPOINT HEALTH PARTNERS MEDICARE ADV $17.23 ↓ -89%
WELLPOINT MEDICARE ADVANTAGE WELLPOINT MEDICARE ADVANTAGE $17.40 ↓ -89%
AMISH HOSPITAL AID AMISH HOSPITAL AID $22.69 ↓ -86%
OSCAR OSCAR $26.18 ↓ -84%
CENTIVO CENTIVO $28.32 ↓ -83%
AMBETTER AMBETTER MARKETPLACE $28.66 ↓ -82%
NOVA CLAIMDOC $34.29 ↓ -79%
CLAIMDOC CLAIMDOC $34.29 ↓ -79%
COVENTRY AETNA $46.44 ↓ -71%
LUMINARE HEALTH AETNA $46.44 ↓ -71%
CHRISTIAN BROTHER SERVICES AETNA $46.44 ↓ -71%
LUCENT HEALTH AETNA $46.44 ↓ -71%
AETNA AETNA $46.44 ↓ -71%
ASR HEALTH BENEFITS AETNA $46.44 ↓ -71%
FIRST HEALTH AETNA $46.44 ↓ -71%
AETNA DOMESTIC AETNA $46.44 ↓ -71%
ALLIED BENEFIT SYSTEMS AETNA $46.44 ↓ -71%
MERITAIN AETNA $46.44 ↓ -71%
WEBTPA AETNA $46.44 ↓ -71%
MEDICAL MUTUAL AETNA $46.44 ↓ -71%
AETNA EAP AETNA $46.44 ↓ -71%
MEDICAL ASSOCIATES MEDICAL ASSOCIATES $56.40 ↓ -65%
HEALTH CHOICES MEDICAL ASSOCIATES $56.40 ↓ -65%
HEALTH PARTNERS HEALTH PARTNERS $157.44 ↓ -3%
MEDICA MIDLANDS CHOICE PPO $170.40 ↑ +5%
CIGNA MIDLANDS CHOICE PPO $170.40 ↑ +5%
CIGNA EAP MIDLANDS CHOICE PPO $170.40 ↑ +5%
MIDLANDS MIDLANDS CHOICE PPO $170.40 ↑ +5%
AUXIANT MIDLANDS CHOICE PPO $170.40 ↑ +5%
MIDLANDS CHOICE MIDLANDS CHOICE PPO $170.40 ↑ +5%
UNITED HEALTHCARE UNITED HEALTHCARE DEERE PREMIER $223.20 ↑ +38%
IOWA DEPT OF PUBLIC HEALTH CARE FOR YOURSELF $240.00 ↑ +48%
UNITED HEALTHCARE UHC OPTUM BEHAVIORAL HEALTH $240.00 ↑ +48%

Visitor-reported prices

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Mayo vitamin b3 (niacin) at other Iowa hospitals

Hospital City Cash price Negotiated range
UnityPoint Health - Allen Hospital Waterloo $64.28 $10.24 – $42.34
MercyOne Genesis Davenport West Medical Center Davenport $270.00 $17.06 – $17.06
MercyOne Dubuque Medical Center Dubuque $156.00 $16.53 – $240.00
MercyOne Dyersville Medical Center Dyersville $326.95 $190.13 – $566.18
MercyOne Clinton Medical Center Clinton $156.00 $16.53 – $240.00
MercyOne Cedar Falls Medical Center Cedar Falls $161.85 $16.53 – $249.00
MercyOne Elkader Medical Center Elkader $326.95 $258.89 – $525.74
MercyOne Des Moines Medical Center Des Moines $156.00 $16.53 – $240.00

All Iowa hospitals for this procedure →