Mayo blastomyces antibody immunodiffusion 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

$45.07

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.

$67.67

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.

$5.89 with BCBS - Anthem vs $10.87 with Care 1st — 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 $5.89 ↓ -87%
United Commercial|Select $6.33 ↓ -86%
Blue Shield CA Commercial|HMO $6.96 ↓ -85%
Blue Shield CA Commercial|PPO $6.96 ↓ -85%
Blue Shield CA Commercial|Exchange $6.96 ↓ -85%
United Commercial|Choice $7.26 ↓ -84%
BCBS - Anthem Commercial|All Other Plans $7.55 ↓ -83%
Health Net Commercial|All Plans $8.12 ↓ -82%
First Health Commercial|All Plans $8.16 ↓ -82%
United Commercial|HMO $8.53 ↓ -81%
Aetna Commercial|PPO $8.89 ↓ -80%
Aetna Commercial|HMO $8.89 ↓ -80%
Aetna Commercial|All Other Plans $8.89 ↓ -80%
Kaiser Commercial|All Plans $9.24 ↓ -79%
Cigna Commercial|All Other Plans $9.73 ↓ -78%
Cigna Commercial|PPO $9.73 ↓ -78%
Multiplan Commercial|All Plans $10.66 ↓ -76%
Health Plan of San Joaquin Medicaid|All Plans $10.87 ↓ -76%
Humana Medicare|All Plans $10.87 ↓ -76%
Aetna Medicare|All Plans $10.87 ↓ -76%
United Medicare|All Plans $10.87 ↓ -76%
Health Net Medicaid|All Plans $10.87 ↓ -76%
Health Net Medicare|All Plans $10.87 ↓ -76%
Kaiser Medicaid|All Plans $10.87 ↓ -76%
Kaiser Medicare|All Plans $10.87 ↓ -76%
BCBS - Anthem Medicaid|All Plans $10.87 ↓ -76%
BCBS - Anthem Medicare|All Plans $10.87 ↓ -76%
Blue Shield CA Medicare|All Plans $10.87 ↓ -76%
Scan Health Plan Medicare|All Plans $10.87 ↓ -76%
California Health & Wellness Medicaid|All Plans $10.87 ↓ -76%
Care 1st Medicare|All Plans $10.87 ↓ -76%

Visitor-reported prices

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Mayo blastomyces antibody immunodiffusion at other California hospitals

Hospital City Cash price Negotiated range
Banner Lassen Medical Center Susanville $17.84 $2.58 – $27.16
Petaluma Valley Hospital Petaluma $10.71 $12.64 – $107.66
Arroyo Grande Hospital Santa Maria $4.66 $4.89 – $33.26
French Hospital San Luis Obispo $4.27 $2.64 – $39.10
Mercy Hospitals – Bakersfield Bakersfield $4.48 $5.44 – $37.09
Bakersfield Memorial Hospital Bakersfield $4.43 $5.44 – $37.09
Queen of The Valley Medical Center Napa $10.71 $12.90 – $136.06
Providence St Joseph Hospital Eureka Eureka $10.71 $12.90 – $154.29

All California hospitals for this procedure →