Mayo ld_i lactate dehydrogenase isoenzymes 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

$2.52

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.

$9.00

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.

$1.26 with Blue Shield CA vs $81.55 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 $1.26 ↓ -50%
Blue Shield CA Commercial|All Other Plans $1.53 ↓ -39%
DHR Medicaid|> 21 $2.25 ↓ -11%
DHR Medicaid|< 21 $2.25 ↓ -11%
Blue Shield CA Medicare|BlueShield Promise $5.85 ↑ +132%
BCBS - Anthem Commercial|Vivity $7.11 ↑ +182%
MultiPlan Commercial|All Plans $7.20 ↑ +186%
Healthsmart Commercial|All Plans $7.83 ↑ +211%
BCBS - Anthem Commercial|All Other Plans $8.28 ↑ +229%
Molina Medicaid|> 21 $9.00 ↑ +257%
United Commercial|All Other Plans $9.00 ↑ +257%
United Medicare|All Plans $9.00 ↑ +257%
United Commercial|HMO $9.00 ↑ +257%
Health Net Medicare|All Plans $9.00 ↑ +257%
Health Net Medicaid|< 21 $9.00 ↑ +257%
Health Net Medicaid|> 21 $9.00 ↑ +257%
Kaiser Medicare|All Plans $9.00 ↑ +257%
Kaiser Medicaid|< 21 $9.00 ↑ +257%
Kaiser Medicaid|> 21 $9.00 ↑ +257%
Central Health Plan Commercial|All Plans $9.00 ↑ +257%
Humana Commercial|All Plans $9.00 ↑ +257%
BCBS - Anthem Medicare|All Plans $9.00 ↑ +257%
BCBS - Anthem Commercial|MCS $9.00 ↑ +257%
BCBS - Anthem Medicaid|< 21 $9.00 ↑ +257%
BCBS - Anthem Medicaid|> 21 $9.00 ↑ +257%
Blue Shield CA Medicare|All Other Plans $9.00 ↑ +257%
Central Health Plan Medicare|All Plans $9.00 ↑ +257%
Humana Medicare|All Plans $9.00 ↑ +257%
Aetna Commercial|All Other Plans $9.00 ↑ +257%
Aetna Commercial|PPO $9.00 ↑ +257%
Aetna Medicare|All Plans $9.00 ↑ +257%
Aetna Commercial|HMO $9.00 ↑ +257%
First Health Commercial|All Plans $9.00 ↑ +257%
Molina Medicare|All Plans $9.00 ↑ +257%
Molina Medicaid|< 21 $9.00 ↑ +257%
HCLA Medicaid|Preferred IPA < 21 $9.00 ↑ +257%
HCLA Medicaid|Preferred IPA > 21 $9.00 ↑ +257%
HCLA Medicare|Preferred IPA $9.00 ↑ +257%
MHN Commercial|All Plans $9.00 ↑ +257%
US Behavioral Health Commercial|All Plans $9.00 ↑ +257%
Scan Health Plan Medicare|All Plans $9.00 ↑ +257%
Gold Coast Health Plan Medicaid|All Plans $9.00 ↑ +257%
LA Care Medicare|All Plans $9.00 ↑ +257%
LA Care Commercial|All Plans $11.25 ↑ +346%
Cigna Commercial|All Other Plans $23.31 ↑ +825%
Cigna Commercial|PPO $23.31 ↑ +825%
LA Care Medicaid|All Plans $41.31 ↑ +1539%
Blue Shield CA Medicaid|All Plans $81.55 ↑ +3136%

Visitor-reported prices

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Mayo ld_i lactate dehydrogenase isoenzymes at other California hospitals

Hospital City Cash price Negotiated range
Banner Lassen Medical Center Susanville $5.63 $2.56 – $18.76
Petaluma Valley Hospital Petaluma $26.78 $12.53 – $104.31
Mark Twain Medical Center San Andreas $6.00 $4.88 – $9.00
Mercy Hospitals – Bakersfield Bakersfield $3.34 $4.50 – $36.74
Bakersfield Memorial Hospital Bakersfield $3.31 $4.50 – $36.74
Queen of The Valley Medical Center Napa $26.78 $12.79 – $131.82
Providence St Joseph Hospital Eureka Eureka $26.78 $12.79 – $149.48
St. Joseph's Behavioral Health Center Stockton $5.14 $0.90 – $7.20

All California hospitals for this procedure →