Mayo antithrombin iii antigen at St. John's Camarillo Hospital

2309 Antonio Ave, Camarillo, CA · CommonSpirit Health · · NPI 1073665360

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

$8.17

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.

$18.64

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.

$3.01 with BCBS - Anthem vs $40.25 with Aetna — 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|DignityHealth $3.01 ↓ -63%
Blue Shield CA Commercial|EPN $5.01 ↓ -39%
Western Growers Commercial|All Plans $5.56 ↓ -32%
BCBS - Anthem Commercial|Exchange $6.23 ↓ -24%
Blue Shield CA Commercial|FFS $6.90 ↓ -16%
Kaiser Commercial|All Plans $6.90 ↓ -16%
Ventura HP Commercial|All Plans $7.23 ↓ -12%
First Health Commercial|All Plans $7.46 ↓ -9%
United Medicare|Sea View $7.79 ↓ -5%
SeaView Medicare|All Plans $7.79 ↓ -5%
Sea View Commercial|All Plans $7.79 ↓ -5%
Aetna Medicare|Sea View $7.79 ↓ -5%
Blue Shield CA Medicare|Sea View $7.79 ↓ -5%
MultiPlan Commercial|All Plans $8.68 ↑ +6%
BCBS - Anthem Commercial|PPO Non MCS $10.46 ↑ +28%
BCBS - Anthem Commercial|HMO $10.46 ↑ +28%
BCBS - Anthem Commercial|Non-MCS $10.46 ↑ +28%
BCBS - Anthem Commercial|HMO Non MCS $10.46 ↑ +28%
BCBS - Anthem Medicare|All Plans $10.81 ↑ +32%
Aetna Medicare|All Plans $10.81 ↑ +32%
Aetna Medicare|All Other Plans $10.81 ↑ +32%
United Medicare|All Plans $10.81 ↑ +32%
United Medicare|All Other Plans $10.81 ↑ +32%
Health Net Medicare|All Plans $10.81 ↑ +32%
Kaiser Medicare|All Plans $10.81 ↑ +32%
Humana Medicare|All Plans $10.81 ↑ +32%
Blue Shield CA Medicare|All Plans $10.81 ↑ +32%
Blue Shield CA Medicare|All Other Plans $10.81 ↑ +32%
Scan Health Plan Medicare|All Other Plans $10.81 ↑ +32%
Scan Health Plan Medicare|Sea View $10.81 ↑ +32%
Valley Care IPA Commercial|All Plans $10.81 ↑ +32%
United Commercial|HMO $11.12 ↑ +36%
BCBS - Anthem Commercial|MCS $11.12 ↑ +36%
United Commercial|Non-Options PPO $11.12 ↑ +36%
United Commercial|All Other Plans $11.12 ↑ +36%
United Commercial|Navigate $11.12 ↑ +36%
Health Net Medicaid|> 21 $13.68 ↑ +67%
Health Net Medicaid|< 21 $13.68 ↑ +67%
Clinicas Commercial|All Plans $21.62 ↑ +165%
Clinicas Medicaid|All Plans $21.62 ↑ +165%
Cigna Commercial|PPO $28.70 ↑ +251%
Cigna Commercial|All Other Plans $28.70 ↑ +251%
Aetna Commercial|All Plans $40.25 ↑ +393%

Visitor-reported prices

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Mayo antithrombin iii antigen at other California hospitals

Hospital City Cash price Negotiated range
Banner Lassen Medical Center Susanville $10.73 $2.16 – $17.46
Petaluma Valley Hospital Petaluma $100.22 $10.59 – $88.26
Arroyo Grande Hospital Santa Maria $7.98 $5.34 – $27.87
Mark Twain Medical Center San Andreas $12.42 $8.57 – $15.51
French Hospital San Luis Obispo $7.31 $4.28 – $32.76
Mercy Hospitals – Bakersfield Bakersfield $6.92 $9.32 – $31.08
Bakersfield Memorial Hospital Bakersfield $6.85 $9.32 – $31.08
Queen of The Valley Medical Center Napa $100.22 $10.81 – $111.54

All California hospitals for this procedure →