Mayo myoglobin 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

$8.23

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.

$12.35

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.

$5.90 with BCBS - Anthem vs $10.89 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 $5.90 ↓ -28%
United Commercial|Select $6.34 ↓ -23%
Blue Shield CA Commercial|HMO $6.97 ↓ -15%
Blue Shield CA Commercial|PPO $6.97 ↓ -15%
Blue Shield CA Commercial|Exchange $6.97 ↓ -15%
United Commercial|Choice $7.27 ↓ -12%
BCBS - Anthem Commercial|All Other Plans $7.56 ↓ -8%
Health Net Commercial|All Plans $8.14 ↓ -1%
First Health Commercial|All Plans $8.17 ↓ -1%
United Commercial|HMO $8.54 ↑ +4%
Aetna Commercial|PPO $8.90 ↑ +8%
Aetna Commercial|HMO $8.90 ↑ +8%
Aetna Commercial|All Other Plans $8.90 ↑ +8%
Kaiser Commercial|All Plans $9.26 ↑ +13%
Cigna Commercial|All Other Plans $9.75 ↑ +18%
Cigna Commercial|PPO $9.75 ↑ +18%
Multiplan Commercial|All Plans $10.68 ↑ +30%
Health Plan of San Joaquin Medicaid|All Plans $10.89 ↑ +32%
Humana Medicare|All Plans $10.89 ↑ +32%
Aetna Medicare|All Plans $10.89 ↑ +32%
United Medicare|All Plans $10.89 ↑ +32%
Health Net Medicaid|All Plans $10.89 ↑ +32%
Health Net Medicare|All Plans $10.89 ↑ +32%
Kaiser Medicaid|All Plans $10.89 ↑ +32%
Kaiser Medicare|All Plans $10.89 ↑ +32%
BCBS - Anthem Medicaid|All Plans $10.89 ↑ +32%
BCBS - Anthem Medicare|All Plans $10.89 ↑ +32%
Blue Shield CA Medicare|All Plans $10.89 ↑ +32%
Scan Health Plan Medicare|All Plans $10.89 ↑ +32%
California Health & Wellness Medicaid|All Plans $10.89 ↑ +32%
Care 1st Medicare|All Plans $10.89 ↑ +32%

Visitor-reported prices

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Mayo myoglobin at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $4.77 $0.90 – $34.29
Banner Lassen Medical Center Susanville $5.63 $2.58 – $18.94
Petaluma Valley Hospital Petaluma $62.35 $12.66 – $105.74
Arroyo Grande Hospital Santa Maria $5.29 $5.45 – $33.30
French Hospital San Luis Obispo $4.85 $2.95 – $39.14
Mercy Hospitals – Bakersfield Bakersfield $95.35 $5.45 – $37.14
Bakersfield Memorial Hospital Bakersfield $94.32 $5.45 – $37.14
Queen of The Valley Medical Center Napa $62.35 $12.92 – $133.63

All California hospitals for this procedure →