Blood gases ph venous at Mark Twain Medical Center

768 Mountain Ranch Rd, San Andreas, CA · CommonSpirit Health · · NPI 1508968819

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

$419.58

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.

$630.00

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.

$9.57 with BCBS - Anthem vs $497.84 with Multiplan — 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
BCBS - Anthem Medicaid|All Plans $9.57 ↓ -98%
Kaiser Medicaid|All Plans $9.57 ↓ -98%
Health Net Medicaid|All Plans $9.57 ↓ -98%
California Health & Wellness Medicaid|All Plans $9.57 ↓ -98%
Health Plan of San Joaquin Medicaid|All Plans $9.57 ↓ -98%
Care 1st Medicare|All Plans $11.00 ↓ -97%
Humana Medicare|All Plans $11.00 ↓ -97%
Aetna Medicare|All Plans $11.00 ↓ -97%
United Medicare|All Plans $11.00 ↓ -97%
Health Net Medicare|All Plans $11.00 ↓ -97%
Kaiser Medicare|All Plans $11.00 ↓ -97%
BCBS - Anthem Medicare|All Plans $11.00 ↓ -97%
Blue Shield CA Medicare|All Plans $11.00 ↓ -97%
Scan Health Plan Medicare|All Plans $11.00 ↓ -97%
BCBS - Anthem Commercial|Exchange $311.82 ↓ -26%
United Commercial|Select $344.94 ↓ -18%
Blue Shield CA Commercial|Exchange $367.29 ↓ -12%
Blue Shield CA Commercial|PPO $367.29 ↓ -12%
Blue Shield CA Commercial|HMO $367.29 ↓ -12%
First Health Commercial|All Plans $381.00 ↓ -9%
United Commercial|Choice $395.23 ↓ -6%
BCBS - Anthem Commercial|All Other Plans $399.75 ↓ -5%
Health Net Commercial|All Plans $408.44 ↓ -3%
Aetna Commercial|All Other Plans $415.04 ↓ -1%
Aetna Commercial|HMO $415.04 ↓ -1%
Aetna Commercial|PPO $415.04 ↓ -1%
Kaiser Commercial|All Plans $431.80 ↑ +3%
Cigna Commercial|PPO $454.66 ↑ +8%
Cigna Commercial|All Other Plans $454.66 ↑ +8%
United Commercial|HMO $466.35 ↑ +11%
Multiplan Commercial|All Plans $497.84 ↑ +19%

Visitor-reported prices

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Blood gases ph venous at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $196.67 $11.00 – $350.22
Banner Lassen Medical Center Susanville $20.66 $2.20 – $32.01
Providence Mission Hospital - Mission Viejo Mission Viejo $131.04 $9.35 – $22.00
Mercy Medical Center Mt. Shasta Mt Shasta $166.50 $6.67 – $209.72
Dominican Hospital Santa Cruz $464.85 $9.57 – $878.05
Northridge Hospital Medical Center Northridge $102.96 $9.57 – $328.00
Sierra Nevada Memorial Hospital Grass Valley $333.54 $9.57 – $81.34
St. Mary Medical Center Long Beach $53.32 $5.25 – $47.85

All California hospitals for this procedure →