Dilate biliary duct/ampulla at Northwestern Medicine McHenry Hospital

4201 Medical Center Drive, McHenry, IL · Nm · · NPI 1427065499

Source: hospital's published price file ↗ · Published Apr 1, 2026 · Ingested Sep 17, 2026

$17,536.88

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.

$25,052.69

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.

$1,044.52 with AETNA HEALTH PLAN [171] vs $5,412.00 with MULTIPLAN/PHCS [142] — 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
AETNA HEALTH PLAN [171] NWR AETNA NM EMPLOYEES $1,044.52 ↓ -94%
CIGNA HEALTH PLAN [178] NWR CIGNA ALTERNATIVE $1,066.16 ↓ -94%
MERCY CARE HEALTH PLANS [5013] NWR MERCY CARE $1,642.54 ↓ -91%
CIGNA HEALTH PLAN [178] NWR CIGNA BROAD $1,672.31 ↓ -90%
BLUE CROSS BLUE SHIELD [1401] NWR BCBS PPO $1,834.67 ↓ -90%
ALTERNATE BLUE CROSS [1402] NWR BCBS PPO $1,834.67 ↓ -90%
AETNA HEALTH PLAN [171] NWR AETNA APCN/SP $1,861.73 ↓ -89%
AETNA HEALTH PLAN [171] NWR AETNA IL PREFERRED $1,921.26 ↓ -89%
BLUE CROSS BLUE SHIELD [1401] NWR BCBS HMO $1,931.00 ↓ -89%
ALTERNATE BLUE CROSS [1402] NWR BCBS HMO $1,931.00 ↓ -89%
BLUE CROSS BLUE SHIELD [1401] NWR BCBS BLUECHOICE PREFERRED $2,586.94 ↓ -85%
BLUE CROSS BLUE SHIELD [1401] NWR BCBS BLUECHOICE SELECT $2,586.94 ↓ -85%
BLUE CROSS BLUE SHIELD [1401] NWR BCBS BLUECHOICE OPTIONS $2,586.94 ↓ -85%
AETNA HEALTH PLAN [171] NWR AETNA $2,635.64 ↓ -85%
HEALTHLINK [125] NWR SEIU HEALTHLINK $2,706.00 ↓ -85%
AETNA HEALTH PLAN [171] NWR AETNA ASA $2,841.30 ↓ -84%
CHOICECARE [177] NWR CHOICE CARE $2,879.18 ↓ -84%
MULTIPLAN/PHCS [142] NWR PHCS PPO $2,976.60 ↓ -83%
THE ALLIANCE [1703] NWR THE ALLIANCE $3,476.13 ↓ -80%
HEALTH'S FINEST NETWORK [126] NWR HFN PLATINUM EPO $3,788.40 ↓ -78%
HEALTH'S FINEST NETWORK [126] NWR HFN PPO $3,950.76 ↓ -77%
UNITED HEALTHCARE [158] NWR UHC CORE $4,001.00 ↓ -77%
CIGNA HEALTH PLAN [178] NWR CIGNA BEHAVORIAL BHS $4,059.00 ↓ -77%
BEECHSTREET [176] NWR BEECHSTREET $4,329.60 ↓ -75%
UNITED HEALTHCARE [158] NWR UHC HMO/PPO $4,445.00 ↓ -75%
BLUE CROSS BLUE SHIELD [1401] NWR BCBS PAR/INDEMNITY ADP $5,412.00 ↓ -69%
MULTIPLAN/PHCS [142] NWR NON-CONTRACTED PAYORS $5,412.00 ↓ -69%
GLOBAL EXCEL [1712] NWR MEDICARE not published by hospital
ALTERNATE BLUE CROSS MEDICARE ADV [2304] NWR BLUE CROSS MEDICARE ADVT not published by hospital
ALTERNATE HUMANA MEDICARE ADV [2409] NWR HUMANA MEDICARE ADVT not published by hospital

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Dilate biliary duct/ampulla at other Illinois hospitals

Hospital City Cash price Negotiated range
Advocate Christ Medical Center Oak Lawn $1,230.00 $969.24 – $6,291.00
Advocate Condell Medical Center Libertyville $1,000.00 $788.00 – $4,528.00
Advocate Good Samaritan Hospital Downers Grove $4,810.00 $3,181.00 – $7,696.00
UnityPoint Health - Trinity Moline Rock Island $1,273.60 $120.69 – $687.80
Advocate Illinois Masonic Medical Center Chicago $1,300.00 $1,024.40 – $6,291.00
Advocate Childrens Hospital - Park Ridge Park Ridge $1,485.00 $1,170.18 – $6,291.00
Advocate Sherman Hospital Elgin $4,475.00 $3,260.00 – $8,055.00
Advocate South Suburban Hospital Hazel Crest $1,470.00 $1,158.36 – $6,291.00

All Illinois hospitals for this procedure →