Thrombin time 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

$12.55

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.

$18.83

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.

$5.77 with Kaiser vs $12.83 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
Kaiser Medicare|All Plans $5.77 ↓ -54%
Humana Medicare|All Plans $5.77 ↓ -54%
Care 1st Medicare|All Plans $5.77 ↓ -54%
Scan Health Plan Medicare|All Plans $5.77 ↓ -54%
Aetna Medicare|All Plans $5.77 ↓ -54%
Blue Shield CA Medicare|All Plans $5.77 ↓ -54%
Health Net Medicare|All Plans $5.77 ↓ -54%
BCBS - Anthem Medicare|All Plans $5.77 ↓ -54%
United Medicare|All Plans $5.77 ↓ -54%
BCBS - Anthem Commercial|Exchange $7.09 ↓ -44%
Health Plan of San Joaquin Medicaid|All Plans $7.16 ↓ -43%
Health Net Medicaid|All Plans $7.16 ↓ -43%
Kaiser Medicaid|All Plans $7.16 ↓ -43%
BCBS - Anthem Medicaid|All Plans $7.16 ↓ -43%
California Health & Wellness Medicaid|All Plans $7.16 ↓ -43%
United Commercial|Select $7.62 ↓ -39%
Blue Shield CA Commercial|Exchange $8.38 ↓ -33%
Blue Shield CA Commercial|HMO $8.38 ↓ -33%
Blue Shield CA Commercial|PPO $8.38 ↓ -33%
United Commercial|Choice $8.74 ↓ -30%
BCBS - Anthem Commercial|All Other Plans $9.09 ↓ -28%
Health Net Commercial|All Plans $9.78 ↓ -22%
First Health Commercial|All Plans $9.82 ↓ -22%
United Commercial|HMO $10.27 ↓ -18%
Aetna Commercial|PPO $10.70 ↓ -15%
Aetna Commercial|HMO $10.70 ↓ -15%
Aetna Commercial|All Other Plans $10.70 ↓ -15%
Kaiser Commercial|All Plans $11.13 ↓ -11%
Cigna Commercial|PPO $11.72 ↓ -7%
Cigna Commercial|All Other Plans $11.72 ↓ -7%
Multiplan Commercial|All Plans $12.83 ↑ +2%

Visitor-reported prices

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Thrombin time at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $8.25 $3.54 – $15.31
Banner Lassen Medical Center Susanville $23.84 $1.15 – $38.80
Petaluma Valley Hospital Petaluma $21.14 $5.65 – $47.21
Arroyo Grande Hospital Santa Maria $51.13 $5.77 – $14.87
French Hospital San Luis Obispo $46.83 $3.54 – $17.48
Mercy Hospitals – Bakersfield Bakersfield $4.86 $1.55 – $16.58
Bakersfield Memorial Hospital Bakersfield $4.81 $1.55 – $16.58
Queen of The Valley Medical Center Napa $21.14 $5.77 – $59.66

All California hospitals for this procedure →