Infectious agent antigen immunoassay ql/sq multi step shiga-like toxin 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

$88.58

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.

$133.00

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.

$8.82 with California Health & Wellness vs $16.14 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
California Health & Wellness Medicaid|All Plans $8.82 ↓ -90%
Health Net Medicaid|All Plans $8.82 ↓ -90%
Health Plan of San Joaquin Medicaid|All Plans $8.82 ↓ -90%
BCBS - Anthem Medicaid|All Plans $8.82 ↓ -90%
Kaiser Medicaid|All Plans $8.82 ↓ -90%
BCBS - Anthem Commercial|Exchange $8.91 ↓ -90%
United Commercial|Select $9.58 ↓ -89%
Blue Shield CA Commercial|PPO $10.54 ↓ -88%
Blue Shield CA Commercial|Exchange $10.54 ↓ -88%
Blue Shield CA Commercial|HMO $10.54 ↓ -88%
United Commercial|Choice $10.99 ↓ -88%
BCBS - Anthem Commercial|All Other Plans $11.43 ↓ -87%
Care 1st Medicare|All Plans $11.98 ↓ -86%
Humana Medicare|All Plans $11.98 ↓ -86%
Aetna Medicare|All Plans $11.98 ↓ -86%
United Medicare|All Plans $11.98 ↓ -86%
Health Net Medicare|All Plans $11.98 ↓ -86%
Kaiser Medicare|All Plans $11.98 ↓ -86%
BCBS - Anthem Medicare|All Plans $11.98 ↓ -86%
Blue Shield CA Medicare|All Plans $11.98 ↓ -86%
Scan Health Plan Medicare|All Plans $11.98 ↓ -86%
Health Net Commercial|All Plans $12.30 ↓ -86%
First Health Commercial|All Plans $12.35 ↓ -86%
United Commercial|HMO $12.91 ↓ -85%
Aetna Commercial|HMO $13.45 ↓ -85%
Aetna Commercial|PPO $13.45 ↓ -85%
Aetna Commercial|All Other Plans $13.45 ↓ -85%
Kaiser Commercial|All Plans $14.00 ↓ -84%
Cigna Commercial|PPO $14.74 ↓ -83%
Cigna Commercial|All Other Plans $14.74 ↓ -83%
Multiplan Commercial|All Plans $16.14 ↓ -82%

Visitor-reported prices

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Infectious agent antigen immunoassay ql/sq multi step shiga-like toxin at other California hospitals

Hospital City Cash price Negotiated range
Banner Lassen Medical Center Susanville $21.76 $2.40 – $37.83
Arroyo Grande Hospital Santa Maria $205.87 $8.23 – $30.88
French Hospital San Luis Obispo $188.56 $4.45 – $36.30
Mercy Hospitals – Bakersfield Bakersfield $67.16 $8.82 – $34.44
Bakersfield Memorial Hospital Bakersfield $66.43 $8.82 – $34.44
Queen of The Valley Medical Center Napa $146.37 $11.98 – $95.77
St. Joseph's Behavioral Health Center Stockton $105.64 $3.50 – $28.00
St. Joseph's Medical Center Stockton Stockton $59.98 $6.30 – $24.60

All California hospitals for this procedure →