Carboxyhemoglobin quantitative at Providence Cedars-Sinai Tarzana Medical Center

18321 Clark St, Tarzana, CA · Providence · · NPI 1821250762

Source: hospital's published price file ↗ · Published Apr 1, 2026 · Ingested Sep 11, 2026

$10.84

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.

$30.96

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.

$12.32 with Aetna vs $117.44 with Blue Shield — 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
Aetna Medicare Managed Care Plan $12.32 ↑ +14%
Humana Choicecare Medicare Managed Care Plan $12.57 ↑ +16%
Central Health Plan Medicare Managed Care Plan $13.55 ↑ +25%
La Care Health Plan Exchange $16.02 ↑ +48%
Blue Cross Anthem Vivity City Of La Other Commercial Plan $17.47 ↑ +61%
Blue Cross Anthem Vivity Non City Of La Other Commercial Plan $19.68 ↑ +82%
Cigna Ppo $21.71 ↑ +100%
Cigna Oap Hmo/Pos $21.71 ↑ +100%
Healthnet Ambetter Hmo $22.79 ↑ +110%
Unitedhealthcare All Commercial Plans $24.64 ↑ +127%
First Health/Coventry Coventry All Commercial Plans $24.64 ↑ +127%
Unitedhealthcare Select/Navigate Hmo $24.64 ↑ +127%
Healthnet Ambetter Ppo $26.36 ↑ +143%
Aetna All Commercial Plans $32.32 ↑ +198%
Blue Shield Epn/Ifp Benefit Exchange $32.89 ↑ +203%
Blue Shield Tandem Ppo/Blue High Performance Ppo/Epo $35.13 ↑ +224%
Blue Shield Hmo/Ppo/Epo $39.43 ↑ +264%
Blue Cross All Commercial Plans $77.45 ↑ +614%
Blue Shield Medicare Managed Care Plan $117.44 ↑ +983%

Visitor-reported prices

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Carboxyhemoglobin quantitative at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $72.27 $9.72 – $32.70
Banner Lassen Medical Center Susanville $23.16 $2.46 – $24.25
Petaluma Valley Hospital Petaluma $273.87 $12.07 – $100.63
Arroyo Grande Hospital Santa Maria $45.80 $12.32 – $73.50
Mark Twain Medical Center San Andreas $86.58 $12.32 – $73.50
French Hospital San Luis Obispo $45.48 $12.32 – $73.50
Mercy Hospitals – Bakersfield Bakersfield $54.54 $12.32 – $35.41
Bakersfield Memorial Hospital Bakersfield $53.95 $12.32 – $35.41

All California hospitals for this procedure →