Injection, siltuximab at Northwestern Memorial Hospital

251 E. Huron, Chicago, IL · Nm · · NPI 1497859649

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

$38,338.65

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.

$54,769.50

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.

$1,907.07 with AETNA HEALTH PLAN [171] vs $13,692.50 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] NMH AETNA NM EMPLOYEES $1,907.07 ↓ -95%
AETNA HEALTH PLAN [171] NMHC IMAGINE HEALTH $2,654.17 ↓ -93%
AETNA HEALTH PLAN [171] NMH AETNA BP $2,949.08 ↓ -92%
CURAECHOICE [6100] NMHC CURAECHOICE $3,204.05 ↓ -92%
AETNA HEALTH PLAN [171] NMH AETNA ASA $3,470.08 ↓ -91%
IMAGINE HEALTH [6032] NMHC IMAGINE HEALTH $3,696.98 ↓ -90%
HUMANA HEALTH PLAN [130] NMH CHS IPA $3,932.10 ↓ -90%
HUMANA HEALTH PLAN [130] NMH ADVOCATE IPA $3,932.10 ↓ -90%
HUMANA HEALTH PLAN [130] NMHC SCPP IPA $4,423.61 ↓ -88%
HUMANA HEALTH PLAN [130] NMHC UIC IPA $4,915.13 ↓ -87%
HEALTHLINK [125] NMH SEIU HEALTHLINK $4,915.13 ↓ -87%
BLUE CROSS BLUE SHIELD [1401] NMHC SCPP IPA $6,161.63 ↓ -84%
BLUE CROSS BLUE SHIELD [1401] NMHC CHWN IPA $6,161.63 ↓ -84%
HEALTH'S FINEST NETWORK [126] NMH HFN PLATINUM/CHC ELITE $6,389.66 ↓ -83%
BLUE CROSS BLUE SHIELD [1401] NMHC UIC IPA $6,846.25 ↓ -82%
MULTIPLAN/PHCS [142] NMH PHCS PPO $7,864.20 ↓ -79%
CIGNA HEALTH PLAN [178] NMH CIGNA BEHAVIORAL HEALTH (EVERNORTH) $7,864.20 ↓ -79%
GLOBAL MEDICAL MANAGEMENT INC [6090] NMHC GMMI $7,941.65 ↓ -79%
HEALTH'S FINEST NETWORK [126] NMH HFN/20 EPO $8,060.81 ↓ -79%
HEALTH'S FINEST NETWORK [126] NMH HFN/10 PPO $8,355.71 ↓ -78%
MEDPARTNERS [6038] NMHC MEDPARTNERS $9,584.75 ↓ -75%
GALAXY HEALTH NETWORK [220] NMHC NON-CONTRACTED PAYORS $9,830.25 ↓ -74%
AETNA HEALTH PLAN [171] NMHC NON-CONTRACTED PAYORS $9,830.25 ↓ -74%
UNITED HEALTHCARE [158] NMHC UHC REF LAB JOHN DEERE $9,830.25 ↓ -74%
HEALTHLINK [125] NMHC NON-CONTRACTED PAYORS $9,830.25 ↓ -74%
MULTIPLAN/PHCS [142] NMH NON-CONTRACTED PAYORS $9,830.25 ↓ -74%
CIGNA HEALTH PLAN [178] NMHC NON-CONTRACTED PAYORS $9,830.25 ↓ -74%
MULTIPLAN/PHCS [142] NMHC NON-CONTRACTED PAYORS $9,830.25 ↓ -74%
OPTUM/UNITED BEHAVIORAL HEALTH [157] NMH Optum UBH $9,830.25 ↓ -74%
UNITED HEALTHCARE [158] NMH UHC NON-CONTRACTED OON - ED ONLY $9,830.25 ↓ -74%
UNITED HEALTHCARE [158] NMHC NON-CONTRACTED PAYORS $9,830.25 ↓ -74%
FIRST HEALTH PLAN [6034] NMHC NON-CONTRACTED PAYORS $13,692.50 ↓ -64%
BLUE CROSS BLUE SHIELD [1401] NMHC NON-CONTRACTED PAYORS $13,692.50 ↓ -64%
AETNA HEALTH PLAN [171] NMH AETNA TRANSPLANT not published by hospital
CIGNA HEALTH PLAN [178] NMH CIGNA LIFESOURCE TRANSPLANT not published by hospital
HUMANA HEALTH PLAN [130] NMH IL HEALTH PARTNERS IPA not published by hospital

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Injection, siltuximab at other Illinois hospitals

Hospital City Cash price Negotiated range
Advocate Illinois Masonic Medical Center Chicago not published $234.83 – $517.68
Advocate Trinity Hospital Chicago not published $234.83 – $517.68
MercyOne Genesis Silvis Medical Center Silvis $9,427.67 $168.83 – $3,449.73
MercyOne Genesis Aledo Medical Center Aledo $9,427.67 $161.96 – $1,863.65
Uchicago Medicine Adventhealth Hinsdale Hinsdale $6,198.68 $162.35 – $268.65
Uchicago Medicine Adventhealth La Grange La Grange $4,551.21 $162.35 – $268.65
Uchicago Medicine Adventhealth Bolingbrook Bolingbrook $4,551.21 $165.83 – $268.65
Uchicago Medicine Adventhealth Glenoaks Glendale Heights $4,551.21 $165.83 – $268.65

All Illinois hospitals for this procedure →