Ionm in operatng room 15 min at Northridge Hospital Medical Center

18300 Roscoe Blvd, Northridge, CA · CommonSpirit Health · · NPI 1417089350

Source: hospital's published price file ↗ · Published Feb 28, 2026 · Ingested Sep 10, 2026

$131.97

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.

$473.00

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.

$27.05 with Kaiser vs $5,811.00 with United — 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
Kaiser Medicaid|< 21 $27.05 ↓ -80%
Gold Coast Health Plan Medicaid|All Plans $27.05 ↓ -80%
HCLA Medicaid|Preferred IPA > 21 $27.05 ↓ -80%
HCLA Medicaid|Preferred IPA < 21 $27.05 ↓ -80%
Kaiser Medicaid|> 21 $27.05 ↓ -80%
Health Net Medicaid|> 21 $36.27 ↓ -73%
Health Net Medicaid|< 21 $36.27 ↓ -73%
Molina Medicaid|< 21 $37.87 ↓ -71%
Molina Medicaid|> 21 $37.87 ↓ -71%
DHR Medicaid|< 21 $118.25 ↓ -10%
DHR Medicaid|> 21 $118.25 ↓ -10%
LA Care Medicaid|All Plans $124.16 ↓ -6%
Blue Shield CA Medicaid|All Plans $135.25 ↑ +2%
BCBS - Anthem Medicaid|> 21 $272.69 ↑ +107%
BCBS - Anthem Medicaid|< 21 $272.69 ↑ +107%
BCBS - Anthem Commercial|Vivity $285.30 ↑ +116%
Blue Shield CA Medicare|BlueShield Promise $307.45 ↑ +133%
MultiPlan Commercial|All Plans $378.40 ↑ +187%
BCBS - Anthem Commercial|All Other Plans $408.91 ↑ +210%
Healthsmart Commercial|All Plans $411.51 ↑ +212%
BCBS - Anthem Commercial|MCS $473.00 ↑ +258%
US Behavioral Health Commercial|All Plans $473.00 ↑ +258%
United Commercial|All Other Plans $3,827.00 ↑ +2800%
United Commercial|HMO $5,811.00 ↑ +4303%

Visitor-reported prices

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Ionm in operatng room 15 min at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $93.30 $40.92 – $166.14
Mercy Hospitals – Bakersfield Bakersfield $107.22 $27.05 – $231.20
Bakersfield Memorial Hospital Bakersfield $106.07 $27.05 – $289.00
St. Joseph's Medical Center Stockton Stockton $111.72 $27.05 – $311.60
Mercy Medical Center Mt. Shasta Mt Shasta $852.69 $60.05 – $1,074.08
Mercy Medical Center Merced Merced $228.66 $27.05 – $444.00
Providence Cedars-Sinai Tarzana Medical Center Tarzana $25.20 $161.51 – $161.51
St. Mary Medical Center Long Beach $395.60 $24.34 – $920.00

All California hospitals for this procedure →