Blood gases o2 saturation direct measurement at Sequoia Hospital

170 Alameda de las Pulgas, Redwood City, CA · CommonSpirit Health · · NPI 1568646735

Source: hospital's published price file ↗ · Published Feb 28, 2026 · Ingested Sep 10, 2026

$259.90

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.

$714.00

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.

$34.86 with Kaiser vs $637.68 with BCBS - Anthem — 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
Kaiser Medicaid|< 21 $34.86 ↓ -87%
Partnership Health Plan Medicaid|> 21 $34.86 ↓ -87%
Partnership Health Plan Medicaid|< 21 $34.86 ↓ -87%
BCBS - Anthem Medicaid|> 21 $34.86 ↓ -87%
BCBS - Anthem Medicaid|< 21 $34.86 ↓ -87%
Kaiser Medicaid|> 21 $34.86 ↓ -87%
Health Plan San Mateo Medicaid|> 21 $42.87 ↓ -84%
Health Plan San Mateo Medicaid|< 21 $42.87 ↓ -84%
Health Net Medicaid|> 21 $42.88 ↓ -84%
Health Net Medicaid|< 21 $42.88 ↓ -84%
Blue Shield CA Medicare|All Plans $78.77 ↓ -70%
Health Net Commercial|Canopy Health $78.77 ↓ -70%
United Medicare|All Plans $78.77 ↓ -70%
Humana Commercial|All Plans $78.77 ↓ -70%
Kaiser Medicare|All Plans $78.77 ↓ -70%
Health Net Medicare|All Plans $78.77 ↓ -70%
Health Plan San Mateo Medicare|All Plans $78.77 ↓ -70%
Chinese Community Medicare|All Plans $78.77 ↓ -70%
BCBS - Anthem Medicare|All Plans $78.77 ↓ -70%
Aetna Medicare|All Plans $78.77 ↓ -70%
Humana Medicare|All Plans $78.77 ↓ -70%
Brown Toland Commercial|All Plans $86.65 ↓ -67%
United Commercial|HMO $94.52 ↓ -64%
United Commercial|Options PPO $94.52 ↓ -64%
United Commercial|All Other Plans $94.52 ↓ -64%
Aetna Commercial|All Plans $123.38 ↓ -53%
Blue Shield CA Commercial|ACO Trio $157.08 ↓ -40%
Blue Shield CA Commercial|Exchange $164.22 ↓ -37%
Blue Shield CA Commercial|All Other Plans $199.92 ↓ -23%
Sutter Health Commercial|All Plans $246.55 ↓ -5%
Cigna Commercial|All Plans $274.23 ↑ +6%
Connected Care Commercial|Intel $307.02 ↑ +18%
BCBS - Anthem Commercial|All Other Plans $376.26 ↑ +45%
Healthsmart Commercial|All Plans $485.52 ↑ +87%
Kaiser Commercial|All Plans $549.78 ↑ +112%
Multiplan Commercial|All Plans $585.48 ↑ +125%
BCBS - Anthem Commercial|MCS $637.68 ↑ +145%

Visitor-reported prices

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Blood gases o2 saturation direct measurement at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $530.42 $52.74 – $944.58
Banner Lassen Medical Center Susanville $148.36 $15.75 – $229.89
Petaluma Valley Hospital Petaluma $684.93 $77.19 – $229.50
Arroyo Grande Hospital Santa Maria $237.12 $34.86 – $542.92
French Hospital San Luis Obispo $402.59 $34.86 – $1,006.46
Mercy Hospitals – Bakersfield Bakersfield $233.73 $34.14 – $372.80
Bakersfield Memorial Hospital Bakersfield $231.21 $34.14 – $368.14
Queen of The Valley Medical Center Napa $788.46 $78.77 – $290.03

All California hospitals for this procedure →