Potassium serum/plasma/whole blood 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

$101.28

Cash price

?

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.

$363.00

Gross charge

?

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.

$4.76 with Scan Health Plan vs $183.00 with US Behavioral Health — same scan, same building. Share

Negotiated rates by payer
?

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
?

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
?

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
Scan Health Plan Medicare|All Plans $4.76 ↓ -95%
Blue Shield CA Medicare|All Other Plans $4.76 ↓ -95%
MHN Commercial|All Plans $4.76 ↓ -95%
HCLA Medicare|Preferred IPA $4.76 ↓ -95%
Aetna Medicare|All Plans $4.76 ↓ -95%
LA Care Medicare|All Plans $4.76 ↓ -95%
First Health Commercial|All Plans $4.76 ↓ -95%
Molina Medicare|All Plans $4.76 ↓ -95%
United Medicare|All Plans $4.76 ↓ -95%
Health Net Medicare|All Plans $4.76 ↓ -95%
Humana Commercial|All Plans $4.76 ↓ -95%
Humana Medicare|All Plans $4.76 ↓ -95%
Kaiser Medicare|All Plans $4.76 ↓ -95%
Central Health Plan Commercial|All Plans $4.76 ↓ -95%
Central Health Plan Medicare|All Plans $4.76 ↓ -95%
BCBS - Anthem Medicare|All Plans $4.76 ↓ -95%
Gold Coast Health Plan Medicaid|All Plans $4.93 ↓ -95%
HCLA Medicaid|Preferred IPA > 21 $4.93 ↓ -95%
HCLA Medicaid|Preferred IPA < 21 $4.93 ↓ -95%
Kaiser Medicaid|< 21 $4.93 ↓ -95%
Kaiser Medicaid|> 21 $4.93 ↓ -95%
United Commercial|All Other Plans $5.71 ↓ -94%
United Commercial|HMO $5.71 ↓ -94%
LA Care Commercial|All Plans $5.95 ↓ -94%
Health Net Medicaid|> 21 $6.61 ↓ -93%
Health Net Medicaid|< 21 $6.61 ↓ -93%
Molina Medicaid|> 21 $6.90 ↓ -93%
Molina Medicaid|< 21 $6.90 ↓ -93%
BCBS - Anthem Medicaid|> 21 $7.08 ↓ -93%
BCBS - Anthem Medicaid|< 21 $7.08 ↓ -93%
Cigna Commercial|All Other Plans $8.67 ↓ -91%
Cigna Commercial|PPO $8.67 ↓ -91%
LA Care Medicaid|All Plans $15.79 ↓ -84%
Aetna Commercial|All Other Plans $18.98 ↓ -81%
Aetna Commercial|PPO $18.98 ↓ -81%
Aetna Commercial|HMO $18.98 ↓ -81%
Blue Shield CA Medicaid|All Plans $24.65 ↓ -76%
Blue Shield CA Commercial|Exchange $25.62 ↓ -75%
Blue Shield CA Commercial|All Other Plans $31.11 ↓ -69%
DHR Medicaid|< 21 $45.75 ↓ -55%
DHR Medicaid|> 21 $45.75 ↓ -55%
BCBS - Anthem Commercial|Vivity $51.49 ↓ -49%
BCBS - Anthem Commercial|All Other Plans $73.79 ↓ -27%
BCBS - Anthem Commercial|MCS $101.08 ↓ -0%
Blue Shield CA Medicare|BlueShield Promise $118.95 ↑ +17%
MultiPlan Commercial|All Plans $146.40 ↑ +45%
Healthsmart Commercial|All Plans $159.21 ↑ +57%
US Behavioral Health Commercial|All Plans $183.00 ↑ +81%

Visitor-reported prices

visitor-reported
Report what you paid sign in to post

Comments

Add a comment sign in to post

Potassium serum/plasma/whole blood at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $67.89 $4.76 – $14.86
Banner Lassen Medical Center Susanville $24.41 $0.95 – $8.73
Petaluma Valley Hospital Petaluma $169.32 $4.66 – $37.87
Arroyo Grande Hospital Santa Maria $85.60 $4.76 – $14.70
Mark Twain Medical Center San Andreas $78.59 $4.76 – $75.46
French Hospital San Luis Obispo $78.40 $4.05 – $14.70
Mercy Hospitals – Bakersfield Bakersfield $210.36 $4.76 – $31.20
Bakersfield Memorial Hospital Bakersfield $208.09 $4.76 – $30.81

All California hospitals for this procedure →