Gi inhouse confirmation 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

$55.95

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.

$84.00

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.

$9.44 with Health Net vs $23.13 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
Health Net Medicare|All Plans $9.44 ↓ -83%
Humana Medicare|All Plans $9.44 ↓ -83%
Care 1st Medicare|All Plans $9.44 ↓ -83%
Scan Health Plan Medicare|All Plans $9.44 ↓ -83%
Aetna Medicare|All Plans $9.44 ↓ -83%
Blue Shield CA Medicare|All Plans $9.44 ↓ -83%
BCBS - Anthem Medicare|All Plans $9.44 ↓ -83%
Kaiser Medicare|All Plans $9.44 ↓ -83%
United Medicare|All Plans $9.44 ↓ -83%
Health Plan of San Joaquin Medicaid|All Plans $11.26 ↓ -80%
Health Net Medicaid|All Plans $11.26 ↓ -80%
Kaiser Medicaid|All Plans $11.26 ↓ -80%
BCBS - Anthem Medicaid|All Plans $11.26 ↓ -80%
California Health & Wellness Medicaid|All Plans $11.26 ↓ -80%
BCBS - Anthem Commercial|Exchange $12.78 ↓ -77%
United Commercial|Select $13.73 ↓ -75%
Blue Shield CA Commercial|PPO $15.11 ↓ -73%
Blue Shield CA Commercial|HMO $15.11 ↓ -73%
Blue Shield CA Commercial|Exchange $15.11 ↓ -73%
United Commercial|Choice $15.76 ↓ -72%
BCBS - Anthem Commercial|All Other Plans $16.38 ↓ -71%
Health Net Commercial|All Plans $17.63 ↓ -68%
First Health Commercial|All Plans $17.70 ↓ -68%
United Commercial|HMO $18.51 ↓ -67%
Aetna Commercial|All Other Plans $19.29 ↓ -66%
Aetna Commercial|HMO $19.29 ↓ -66%
Aetna Commercial|PPO $19.29 ↓ -66%
Kaiser Commercial|All Plans $20.06 ↓ -64%
Cigna Commercial|PPO $21.13 ↓ -62%
Cigna Commercial|All Other Plans $21.13 ↓ -62%
Multiplan Commercial|All Plans $23.13 ↓ -59%

Visitor-reported prices

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Gi inhouse confirmation at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $303.54 $9.44 – $29.46
Banner Lassen Medical Center Susanville $7.25 $1.89 – $12.95
Petaluma Valley Hospital Petaluma $192.27 $9.25 – $76.99
Arroyo Grande Hospital Santa Maria $320.15 $6.67 – $24.34
French Hospital San Luis Obispo $293.22 $3.61 – $28.61
Mercy Hospitals – Bakersfield Bakersfield $129.85 $6.67 – $27.14
Bakersfield Memorial Hospital Bakersfield $128.45 $6.67 – $27.14
Providence St Joseph Hospital Eureka Eureka $268.77 $9.44 – $110.34

All California hospitals for this procedure →