Mayo immunoassay c1 esterase inhibitor antibody quantitative 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

$171.17

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.

$257.00

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.

$8.67 with BCBS - Anthem vs $16.00 with Health Net — 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 Commercial|Exchange $8.67 ↓ -95%
United Commercial|Select $9.31 ↓ -95%
Blue Shield CA Commercial|HMO $10.24 ↓ -94%
Blue Shield CA Commercial|Exchange $10.24 ↓ -94%
Blue Shield CA Commercial|PPO $10.24 ↓ -94%
United Commercial|Choice $10.68 ↓ -94%
BCBS - Anthem Commercial|All Other Plans $11.11 ↓ -94%
Health Net Commercial|All Plans $11.96 ↓ -93%
First Health Commercial|All Plans $12.00 ↓ -93%
United Commercial|HMO $12.55 ↓ -93%
Aetna Commercial|HMO $13.08 ↓ -92%
Aetna Commercial|PPO $13.08 ↓ -92%
Aetna Commercial|All Other Plans $13.08 ↓ -92%
Kaiser Commercial|All Plans $13.60 ↓ -92%
Cigna Commercial|All Other Plans $14.32 ↓ -92%
Cigna Commercial|PPO $14.32 ↓ -92%
Health Plan of San Joaquin Medicaid|All Plans $14.69 ↓ -91%
Health Net Medicaid|All Plans $14.69 ↓ -91%
Kaiser Medicaid|All Plans $14.69 ↓ -91%
BCBS - Anthem Medicaid|All Plans $14.69 ↓ -91%
California Health & Wellness Medicaid|All Plans $14.69 ↓ -91%
Multiplan Commercial|All Plans $15.68 ↓ -91%
BCBS - Anthem Medicare|All Plans $16.00 ↓ -91%
United Medicare|All Plans $16.00 ↓ -91%
Blue Shield CA Medicare|All Plans $16.00 ↓ -91%
Aetna Medicare|All Plans $16.00 ↓ -91%
Humana Medicare|All Plans $16.00 ↓ -91%
Scan Health Plan Medicare|All Plans $16.00 ↓ -91%
Kaiser Medicare|All Plans $16.00 ↓ -91%
Care 1st Medicare|All Plans $16.00 ↓ -91%
Health Net Medicare|All Plans $16.00 ↓ -91%

Visitor-reported prices

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Mayo immunoassay c1 esterase inhibitor antibody quantitative at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $37.23 $4.32 – $45.84
Banner Lassen Medical Center Susanville $375.60 $2.46 – $16.90
Petaluma Valley Hospital Petaluma $210.80 $16.92 – $105.68
Arroyo Grande Hospital Santa Maria $273.92 $8.00 – $44.52
French Hospital San Luis Obispo $250.88 $4.32 – $52.33
Mercy Hospitals – Bakersfield Bakersfield $155.32 $8.00 – $49.65
Bakersfield Memorial Hospital Bakersfield $153.64 $8.00 – $49.65
Queen of The Valley Medical Center Napa $210.80 $17.27 – $133.56

All California hospitals for this procedure →