Mayo leptospira antibody igm 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

$12.56

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.

$45.00

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.

$6.30 with Blue Shield CA vs $87.70 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
Blue Shield CA Commercial|Exchange $6.30 ↓ -50%
Blue Shield CA Commercial|All Other Plans $7.65 ↓ -39%
DHR Medicaid|> 21 $11.25 ↓ -10%
DHR Medicaid|< 21 $11.25 ↓ -10%
Aetna Medicare|All Plans $16.20 ↑ +29%
First Health Commercial|All Plans $16.20 ↑ +29%
Molina Medicare|All Plans $16.20 ↑ +29%
Blue Shield CA Medicare|All Other Plans $16.20 ↑ +29%
Humana Medicare|All Plans $16.20 ↑ +29%
MHN Commercial|All Plans $16.20 ↑ +29%
HCLA Medicare|Preferred IPA $16.20 ↑ +29%
United Medicare|All Plans $16.20 ↑ +29%
Health Net Medicare|All Plans $16.20 ↑ +29%
LA Care Medicare|All Plans $16.20 ↑ +29%
Kaiser Medicare|All Plans $16.20 ↑ +29%
Central Health Plan Commercial|All Plans $16.20 ↑ +29%
Central Health Plan Medicare|All Plans $16.20 ↑ +29%
BCBS - Anthem Medicare|All Plans $16.20 ↑ +29%
Scan Health Plan Medicare|All Plans $16.20 ↑ +29%
Humana Commercial|All Plans $16.20 ↑ +29%
Kaiser Medicaid|< 21 $17.54 ↑ +40%
HCLA Medicaid|Preferred IPA > 21 $17.54 ↑ +40%
Gold Coast Health Plan Medicaid|All Plans $17.54 ↑ +40%
Kaiser Medicaid|> 21 $17.54 ↑ +40%
HCLA Medicaid|Preferred IPA < 21 $17.54 ↑ +40%
United Commercial|HMO $19.44 ↑ +55%
United Commercial|All Other Plans $19.44 ↑ +55%
BCBS - Anthem Medicaid|< 21 $19.59 ↑ +56%
BCBS - Anthem Medicaid|> 21 $19.59 ↑ +56%
LA Care Commercial|All Plans $20.25 ↑ +61%
Health Net Medicaid|< 21 $23.52 ↑ +87%
Health Net Medicaid|> 21 $23.52 ↑ +87%
Molina Medicaid|< 21 $24.56 ↑ +96%
Molina Medicaid|> 21 $24.56 ↑ +96%
Blue Shield CA Medicare|BlueShield Promise $29.25 ↑ +133%
Cigna Commercial|All Other Plans $29.54 ↑ +135%
Cigna Commercial|PPO $29.54 ↑ +135%
BCBS - Anthem Commercial|Vivity $35.55 ↑ +183%
MultiPlan Commercial|All Plans $36.00 ↑ +187%
Healthsmart Commercial|All Plans $39.15 ↑ +212%
BCBS - Anthem Commercial|All Other Plans $41.40 ↑ +230%
US Behavioral Health Commercial|All Plans $45.00 ↑ +258%
BCBS - Anthem Commercial|MCS $45.00 ↑ +258%
Aetna Commercial|HMO $45.00 ↑ +258%
Aetna Commercial|PPO $45.00 ↑ +258%
Aetna Commercial|All Other Plans $45.00 ↑ +258%
LA Care Medicaid|All Plans $56.14 ↑ +347%
Blue Shield CA Medicaid|All Plans $87.70 ↑ +598%

Visitor-reported prices

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Mayo leptospira antibody igm at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $19.71 $12.15 – $42.98
Banner Lassen Medical Center Susanville $65.61 $3.24 – $43.65
Arroyo Grande Hospital Santa Maria $19.26 $16.20 – $44.10
Mark Twain Medical Center San Andreas $29.97 $16.20 – $44.10
French Hospital San Luis Obispo $17.64 $12.15 – $49.07
Mercy Hospitals – Bakersfield Bakersfield $16.70 $16.20 – $46.55
Bakersfield Memorial Hospital Bakersfield $16.52 $16.20 – $46.55
St. Joseph's Behavioral Health Center Stockton $25.70 $4.50 – $36.00

All California hospitals for this procedure →