C-peptide at Ascension Saint Joseph - Chicago (Presence Chicago Hospital Network)

2900 N Lake Shore Dr, Chicago, IL · Ascension · · NPI 1679659585

Source: hospital's published price file ↗ · Published Jan 1, 2026 · Ingested Sep 7, 2026

$31.02

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.

$94.00

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.

$15.61 with SMARTHEALTH vs $87.18 with CIGNA — 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
SMARTHEALTH 2815_SMARTHEALTH INPATIENT 20241001 $15.61 ↓ -50%
HUMANA MCR REPLACEMENT 3139_JCIL MEDICARE ADVANTAGE HUMANA INPATIENT 20251001 $20.81 ↓ -33%
HUMANA MCR REPLACEMENT 2898_MEDICARE ADVANTAGE HUMANA OUTPATIENT 20250101 $20.81 ↓ -33%
MEDICARE REPLACEMENT 2894_JCIL MEDICARE ADVANTAGE PLAN OUTPATIENT 20250101 $20.81 ↓ -33%
MEDICARE REPLACEMENT 3133_JCIL MEDICARE ADVANTAGE PLAN INPATIENT 20251001 $20.81 ↓ -33%
UHC MCR REPLACEMENT 3103_JCIL MEDICARE ADVANTAGE UNITED HEALTH CARE OUTPATIENT 20250701 $20.81 ↓ -33%
UHC MCR REPLACEMENT 3102_JCIL MEDICARE ADVANTAGE UNITED HEALTH CARE INPATIENT 20251001 $20.81 ↓ -33%
UHC CHOICE 3095_PFIL, PRIL, PSIL UNITED HEALTHCARE 20250701 $20.81 ↓ -33%
UHC INDIVIDUAL EXCHANGE 3100_JCIL UHC OP INDIVIDUAL EXCHANGE 20250701 $20.81 ↓ -33%
UHC INDIVIDUAL EXCHANGE 3099_JCIL UHC IP INDIVIDUAL EXCHANGE 20250701 $20.81 ↓ -33%
TRICARE 2571_TRICARE OUTPATIENT 20231001 $20.81 ↓ -33%
TRICARE 3136_JCIL TRICARE INPATIENT 20251001 $20.81 ↓ -33%
AETNA MCR REPLACEMENT 2891_JCIL MEDICARE ADVANTAGE AETNA OUTPATIENT 20250101 $20.81 ↓ -33%
AETNA MCR REPLACEMENT 3130_JCIL MEDICARE ADVANTAGE AETNA INPATIENT 20251001 $20.81 ↓ -33%
BCBS MCR REPLACEMENT 2892_JCIL MEDICARE ADVANTAGE BLUE CROSS BLUE SHIELD HMO OUTPATIENT 20250101 $20.81 ↓ -33%
BCBS MCR REPLACEMENT 3131_JCIL MEDICARE ADVANTAGE BLUE CROSS BLUE SHIELD HMO INPATIENT 20251001 $20.81 ↓ -33%
UHC PPO 3096_PFIL, PRIL, PSIL UNITED HEALTHCARE OPTIONS PPO 20250701 $20.81 ↓ -33%
MERIDIAN HEALTH MEDICARE 2893_JCIL MEDICARE ADVANTAGE MERIDIAN OUTPATIENT 20250101 $21.85 ↓ -30%
MERIDIAN HEALTH MEDICARE 3132_JCIL MEDICARE ADVANTAGE MERIDIAN INPATIENT 20251001 $21.85 ↓ -30%
AETNA BETTER HEALTH MCR REPLACEMENT 2896_MEDICARE ADVANTAGE AETNA BETTER HEALTH OUTPATIENT 20250101 $21.85 ↓ -30%
AETNA BETTER HEALTH MCR REPLACEMENT 3138_JCIL MEDICARE ADVANTAGE AETNA BETTER HEALTH INPATIENT 20251001 $21.85 ↓ -30%
HUMANA MMAI 3140_JCIL MEDICARE ADVANTAGE HUMANA MMAI INPATIENT 20251001 $22.89 ↓ -26%
MOLINA MEDICARE 2899_MEDICARE ADVANTAGE MOLINA OUTPATIENT 20250101 $22.89 ↓ -26%
MOLINA MEDICARE 3141_JCIL MEDICARE ADVANTAGE MOLINA INPATIENT 20251001 $22.89 ↓ -26%
HUMANA MMAI 2897_MEDICARE ADVANTAGE HUMANA MMAI OUTPATIENT 20250101 $22.89 ↓ -26%
CIGNA IFP 3019_JCIL CIGNA IFP 20250101 $23.54 ↓ -24%
BCBS FOCUS CARE 3129_JCIL BLUE CROSS BLUE SHIELD MYBLUE PLUS POS INPATIENT 20251001 $26.01 ↓ -16%
BRIGHT HEALTH 2889_BRIGHT HEALTH OUTPATIENT 20250101 $26.01 ↓ -16%
BRIGHT HEALTH 3135_JCIL BRIGHT HEALTH INPATIENT 20251001 $26.01 ↓ -16%
AETNA 2925_JCIL AETNA 20250201 $26.10 ↓ -16%
UHC INDIVIDUAL EXCHANGE 3104_JCIL UHC IP INDIVIDUAL EXCHANGE 20251001 $28.09 ↓ -9%
BCBS FOCUS CARE 3003_JCIL BLUE CROSS BLUE SHIELD MYBLUE PLUS POS OUTPATIENT 20250101 $28.09 ↓ -9%
SMARTHEALTH 2917_SMARTHEALTH OP 20250101 $29.13 ↓ -6%
SMARTHEALTH 3142_JCIL SMARTHEALTH INPATIENT 20251001 $29.13 ↓ -6%
IMAGINE HEALTH 2829_IMAGINE HEALTH (PHIL) 20241001 $30.17 ↓ -3%
IMAGINE HEALTH 2830_IMAGINE HEALTH 20241001 $30.17 ↓ -3%
IMAGINE HEALTH 2828_IMAGINE HEALTH (JCIL) 20241001 $30.17 ↓ -3%
AETNA SMARTCARE 1344_AETNA SMARTCARE OP 20180101 $31.21 ↑ +1%
AMBETTER 2888_AMBETTER OUTPATIENT 20250101 $33.71 ↑ +9%
AMBETTER 3134_JCIL AMBETTER INPATIENT 20251001 $33.71 ↑ +9%
BCBS BCE 2879_JCIL BLUE CROSS BLUE SHIELD BCE 20241001 $39.60 ↑ +28%
BCBS BCS 2832_JCIL BLUE CROSS BLUE SHIELD BCS 20241001 $39.60 ↑ +28%
CIGNA ONE HEALTH 2826_CIGNA ONE HEALTH 20241001 $46.68 ↑ +50%
BCBS PPO 2834_JCIL BLUE CROSS BLUE SHIELD PPO 20241001 $58.56 ↑ +89%
CIGNA 3006_JCIL CIGNA 20250101 $87.18 ↑ +181%

Visitor-reported prices

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C-peptide at other Illinois hospitals

Hospital City Cash price Negotiated range
Advocate Illinois Masonic Medical Center Chicago $100.00 $20.81 – $160.00
Advocate Trinity Hospital Chicago $100.00 $20.81 – $160.00
MercyOne Genesis Silvis Medical Center Silvis $115.20 $9.81 – $120.52
MercyOne Genesis Aledo Medical Center Aledo $115.20 $23.93 – $46.53
Uchicago Medicine Adventhealth Hinsdale Hinsdale $32.50 $20.37 – $33.71
Advocate Christ Medical Center Oak Lawn $100.00 $20.81 – $160.00
Advocate Condell Medical Center Libertyville $100.00 $20.81 – $160.00
Advocate Good Samaritan Hospital Downers Grove $100.00 $20.81 – $160.00

All Illinois hospitals for this procedure →