Immunofluorescence per specimen initial single antibody stain 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

$82.59

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.

$296.00

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.

$15.25 with DHR vs $402.00 with Blue Shield CA — 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
DHR Medicaid|< 21 $15.25 ↓ -82%
DHR Medicaid|> 21 $15.25 ↓ -82%
Blue Shield CA Medicare|BlueShield Promise $39.65 ↓ -52%
BCBS - Anthem Commercial|Vivity $48.19 ↓ -42%
MultiPlan Commercial|All Plans $48.80 ↓ -41%
Healthsmart Commercial|All Plans $53.07 ↓ -36%
BCBS - Anthem Commercial|All Other Plans $56.12 ↓ -32%
Molina Medicaid|< 21 $61.00 ↓ -26%
Aetna Commercial|All Other Plans $61.00 ↓ -26%
Aetna Commercial|PPO $61.00 ↓ -26%
Aetna Commercial|HMO $61.00 ↓ -26%
Molina Medicaid|> 21 $61.00 ↓ -26%
United Commercial|All Other Plans $61.00 ↓ -26%
United Commercial|HMO $61.00 ↓ -26%
Health Net Medicaid|< 21 $61.00 ↓ -26%
Health Net Medicaid|> 21 $61.00 ↓ -26%
Kaiser Medicare|All Plans $61.00 ↓ -26%
Kaiser Medicaid|< 21 $61.00 ↓ -26%
Kaiser Medicaid|> 21 $61.00 ↓ -26%
BCBS - Anthem Commercial|MCS $61.00 ↓ -26%
BCBS - Anthem Medicaid|< 21 $61.00 ↓ -26%
BCBS - Anthem Medicaid|> 21 $61.00 ↓ -26%
Gold Coast Health Plan Medicaid|All Plans $61.00 ↓ -26%
HCLA Medicaid|Preferred IPA < 21 $61.00 ↓ -26%
HCLA Medicaid|Preferred IPA > 21 $61.00 ↓ -26%
US Behavioral Health Commercial|All Plans $61.00 ↓ -26%
Humana Commercial|All Plans $217.73 ↑ +164%
Aetna Medicare|All Plans $217.73 ↑ +164%
Humana Medicare|All Plans $217.73 ↑ +164%
HCLA Medicare|Preferred IPA $217.73 ↑ +164%
Molina Medicare|All Plans $217.73 ↑ +164%
MHN Commercial|All Plans $217.73 ↑ +164%
LA Care Medicare|All Plans $217.73 ↑ +164%
Central Health Plan Commercial|All Plans $217.73 ↑ +164%
Central Health Plan Medicare|All Plans $217.73 ↑ +164%
BCBS - Anthem Medicare|All Plans $217.73 ↑ +164%
Blue Shield CA Medicare|All Other Plans $217.73 ↑ +164%
United Medicare|All Plans $217.73 ↑ +164%
First Health Commercial|All Plans $217.73 ↑ +164%
Health Net Medicare|All Plans $217.73 ↑ +164%
Scan Health Plan Medicare|All Plans $217.73 ↑ +164%
Cigna Commercial|All Other Plans $218.31 ↑ +164%
Cigna Commercial|PPO $218.31 ↑ +164%
LA Care Medicaid|All Plans $257.27 ↑ +212%
LA Care Commercial|All Plans $272.16 ↑ +230%
Blue Shield CA Medicaid|All Plans $402.00 ↑ +387%

Visitor-reported prices

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Immunofluorescence per specimen initial single antibody stain at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $53.88 $3.73 – $317.70
Banner Lassen Medical Center Susanville $15.61 $15.17 – $92.48
Petaluma Valley Hospital Petaluma $600.27 $61.61 – $566.82
Arroyo Grande Hospital Santa Maria $120.19 $15.83 – $308.52
Mark Twain Medical Center San Andreas $71.27 $27.09 – $102.59
French Hospital San Luis Obispo $110.08 $8.55 – $362.69
Mercy Hospitals – Bakersfield Bakersfield $92.01 $47.26 – $344.09
Bakersfield Memorial Hospital Bakersfield $91.02 $47.26 – $344.09

All California hospitals for this procedure →