Antithrombin iii activity at Arroyo Grande Hospital

1400 E Church St, Santa Maria, CA · CommonSpirit Health · · NPI 1760510937

Source: hospital's published price file ↗ · Published Feb 28, 2026 · Ingested Sep 10, 2026

$77.79

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.

$181.75

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.

$6.50 with Western Growers vs $30.52 with Cigna — 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
Western Growers Commercial|All Plans $6.50 ↓ -92%
Blue Shield CA Commercial|Exchange $8.19 ↓ -89%
Kaiser Commercial|All Plans $8.19 ↓ -89%
First Health Commercial|All Plans $10.92 ↓ -86%
Blue Shield CA Commercial|FFS $11.44 ↓ -85%
Humana Medicare|All Plans $11.85 ↓ -85%
Aetna Medicare|All Plans $11.85 ↓ -85%
United Medicare|All Plans $11.85 ↓ -85%
Kaiser Medicare|All Plans $11.85 ↓ -85%
BCBS - Anthem Medicare|All Plans $11.85 ↓ -85%
Alignment Medicare|All Plans $11.85 ↓ -85%
MHS Hospice Commercial|All Plans $11.85 ↓ -85%
Scan Health Plan Medicare|All Plans $11.85 ↓ -85%
Healthsmart Commercial|All Plans $11.96 ↓ -85%
BCBS - Anthem Commercial|Non-MCS $12.61 ↓ -84%
MultiPlan Commercial|All Plans $12.74 ↓ -84%
United Commercial|Non-Options PPO $13.00 ↓ -83%
Aetna Commercial|PPO $13.00 ↓ -83%
CenCal Medicaid|< 21 $13.00 ↓ -83%
Aetna Commercial|HMO $13.00 ↓ -83%
United Commercial|All Other Plans $13.00 ↓ -83%
CenCal Medicaid|> 21 $13.00 ↓ -83%
United Commercial|Options PPO $13.00 ↓ -83%
Partnership Health Plan Medicaid|< 21 $13.00 ↓ -83%
BCBS - Anthem Commercial|MCS $13.00 ↓ -83%
Partnership Health Plan Medicaid|> 21 $13.00 ↓ -83%
Aetna Commercial|All Other Plans $13.00 ↓ -83%
United Commercial|HMO $14.22 ↓ -82%
Health Net Medicaid|< 21 $15.99 ↓ -79%
Health Net Medicaid|> 21 $15.99 ↓ -79%
Cigna Commercial|PPO $30.52 ↓ -61%
Cigna Commercial|All Other Plans $30.52 ↓ -61%

Visitor-reported prices

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Antithrombin iii activity at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $6.93 $2.83 – $31.43
Petaluma Valley Hospital Petaluma $100.22 $11.61 – $96.72
Mark Twain Medical Center San Andreas $10.54 $7.04 – $13.00
French Hospital San Luis Obispo $71.25 $3.51 – $35.88
Mercy Hospitals – Bakersfield Bakersfield $106.85 $6.50 – $34.04
Bakersfield Memorial Hospital Bakersfield $105.70 $6.50 – $34.04
Queen of The Valley Medical Center Napa $100.22 $11.85 – $122.24
Providence St Joseph Hospital Eureka Eureka $100.22 $11.85 – $138.62

All California hospitals for this procedure →