Cholinesterase challenge at CHI Health Mercy Corning

603 Rosary Drive, Corning, IA · Chihealth · · NPI 1699856260

Source: hospital's published price file ↗ · Published Feb 28, 2026 · Ingested Sep 16, 2026

$85.92

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.

$179.00

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.

$44.75 with United vs $161.70 with MultiPlan — 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
United Medicare|All Plans $44.75 ↓ -48%
Humana Medicare|All Plans $44.75 ↓ -48%
PACE Medicare|All Plans $44.75 ↓ -48%
Medica Medicare|All Plans $44.75 ↓ -48%
BCBS - NE Medicare|All Plans $44.75 ↓ -48%
Centene Medicare|All Plans $45.65 ↓ -47%
Great Plains Medicare|All Plans $46.99 ↓ -45%
Amerigroup Medicare|All Plans $46.99 ↓ -45%
United Medicaid|Community Plan $70.95 ↓ -17%
Amerigroup Medicaid|All Plans $72.37 ↓ -16%
Centene Medicaid|IA Total Care $72.37 ↓ -16%
IAMolina Medicaid|All Plans $73.79 ↓ -14%
Wellmark Commercial|PPO $99.00 ↑ +15%
Wellmark Commercial|HMO $99.00 ↑ +15%
AMPS Commercial|All Plans $99.35 ↑ +16%
Medica Commercial|CHI Health $150.15 ↑ +75%
Medica Commercial|All Other Plans $150.15 ↑ +75%
Timpte Commercial|Broad Network $158.40 ↑ +84%
QuikTrip Commercial|All Plans $158.40 ↑ +84%
Medica Commercial|Open Access $158.40 ↑ +84%
Medica Commercial|ACO $158.40 ↑ +84%
Midlands Choice Commercial|Premier $158.40 ↑ +84%
Midlands Choice Commercial|Standard $158.40 ↑ +84%
Millard Public Schools Commercial|Narrow Network $158.40 ↑ +84%
One World Commercial|Broad Network $158.40 ↑ +84%
One World Commercial|Narrow Network $158.40 ↑ +84%
Greater Omaha Packing Commercial|Broad Network $158.40 ↑ +84%
Greater Omaha Packing Commercial|Narrow Network $158.40 ↑ +84%
Millard Public Schools Commercial|Broad Network $158.40 ↑ +84%
PHCS Commercial|All Plans $161.70 ↑ +88%
United Commercial|All Plans $161.70 ↑ +88%
MultiPlan Commercial|All Plans $161.70 ↑ +88%

Visitor-reported prices

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Cholinesterase challenge at other Iowa hospitals

Hospital City Cash price Negotiated range
UnityPoint Health - Allen Hospital Waterloo $120.00 $25.71 – $258.11
UnityPoint Health - Finley Hospital Dubuque $120.00 $25.71 – $273.79
UnityPoint Health - Grinnell Regional Medical Center Grinnell $120.00 $25.71 – $309.83
UnityPoint Health - Iowa Lutheran Hospital Des Moines $120.00 $25.71 – $300.01
UnityPoint Health - Jones Regional Medical Center Anamosa $120.00 $25.71 – $67.65
UnityPoint Health - Marshalltown Marshalltown $120.00 $25.71 – $303.02
UnityPoint Health - St. Lukes Downtown Sioux City $120.00 $25.71 – $275.78
UnityPoint Health - Trinity Bettendorf Bettendorf $120.00 $25.71 – $267.96

All Iowa hospitals for this procedure →