Knee orth pos locking joint 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

$320.24

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.

$457.49

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.

$64.62 with AETNA HEALTH PLAN [171] vs $334.82 with BLUE CROSS BLUE SHIELD [1401] — 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 $64.62 ↓ -80%
CIGNA HEALTH PLAN [178] NWR CIGNA ALTERNATIVE $65.96 ↓ -79%
MERCY CARE HEALTH PLANS [5013] NWR MERCY CARE $101.62 ↓ -68%
CIGNA HEALTH PLAN [178] NWR CIGNA BROAD $103.46 ↓ -68%
BLUE CROSS BLUE SHIELD [1401] NWR BCBS PPO $113.50 ↓ -65%
ALTERNATE BLUE CROSS [1402] NWR BCBS PPO $113.50 ↓ -65%
AETNA HEALTH PLAN [171] NWR AETNA APCN/SP $115.18 ↓ -64%
AETNA HEALTH PLAN [171] NWR AETNA IL PREFERRED $118.86 ↓ -63%
BLUE CROSS BLUE SHIELD [1401] NWR BCBS HMO $119.46 ↓ -63%
ALTERNATE BLUE CROSS [1402] NWR BCBS HMO $119.46 ↓ -63%
UNITED HEALTHCARE [158] NWR UHC CORE $158.70 ↓ -50%
BLUE CROSS BLUE SHIELD [1401] NWR BCBS BLUECHOICE SELECT $160.04 ↓ -50%
BLUE CROSS BLUE SHIELD [1401] NWR BCBS BLUECHOICE PREFERRED $160.04 ↓ -50%
BLUE CROSS BLUE SHIELD [1401] NWR BCBS BLUECHOICE OPTIONS $160.04 ↓ -50%
HEALTHLINK [125] NWR SEIU HEALTHLINK $167.41 ↓ -48%
UNITED HEALTHCARE [158] NWR UHC HMO/PPO $176.45 ↓ -45%
CHOICECARE [177] NWR CHOICE CARE $178.12 ↓ -44%
MULTIPLAN/PHCS [142] NWR PHCS PPO $210.94 ↓ -34%
THE ALLIANCE [1703] NWR THE ALLIANCE $215.05 ↓ -33%
HEALTH'S FINEST NETWORK [126] NWR HFN PLATINUM EPO $234.37 ↓ -27%
HEALTH'S FINEST NETWORK [126] NWR HFN PPO $244.42 ↓ -24%
CIGNA HEALTH PLAN [178] NWR CIGNA BEHAVORIAL BHS $251.12 ↓ -22%
BEECHSTREET [176] NWR BEECHSTREET $267.86 ↓ -16%
MULTIPLAN/PHCS [142] NWR NON-CONTRACTED PAYORS $334.82 ↑ +5%
BLUE CROSS BLUE SHIELD [1401] NWR BCBS PAR/INDEMNITY ADP $334.82 ↑ +5%
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

Visitor-reported prices

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Knee orth pos locking joint at other Illinois hospitals

Hospital City Cash price Negotiated range
Advocate Christ Medical Center Oak Lawn $317.50 $163.20 – $680.85
UnityPoint Health - Trinity Moline Rock Island $1,369.20 $176.04 – $754.77
OSF Holy Family Medical Center Monmouth $780.80 not published
OSF Sacred Heart Medical Center – Urbana Danville $585.60 not published
OSF Saint Anthony's Health Center Alton $585.60 not published
OSF Saint Anthony Medical Center Rockford $585.60 $256.57 – $1,265.95
OSF St Joseph Medical Center Bloomington $585.60 not published
OSF Saint Elizabeth Medical Center Ottawa $585.60 not published

All Illinois hospitals for this procedure →