Infectious agent antigen immunoassay ql/sq multi step clostridium difficile toxin at Mercy San Juan Medical Center

6501 Coyle Avenue, Carmichael, CA · CommonSpirit Health · · NPI 1972541498

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

$45.49

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.

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What you pay up front if you don't use insurance.

$166.00

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.

$8.39 with Partnership Health Plan vs $166.00 with BCBS - Anthem — 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
Partnership Health Plan Medicaid|All Plans $8.39 ↓ -82%
BCBS - Anthem Medicare|All Other Plans $11.30 ↓ -75%
Humana Commercial|All Plans $11.98 ↓ -74%
Hill Physicians Commercial|All Plans $11.98 ↓ -74%
Aetna Medicare|All Plans $11.98 ↓ -74%
Molina Medicare|All Plans $11.98 ↓ -74%
Humana Medicare|All Plans $11.98 ↓ -74%
Blue Shield CA Medicare|PPO $11.98 ↓ -74%
Blue Shield CA Medicare|HMO $11.98 ↓ -74%
Kaiser Medicare|All Plans $11.98 ↓ -74%
United Medicare|All Plans $11.98 ↓ -74%
United Medicaid|< 21 $12.03 ↓ -74%
United Medicaid|> 21 $12.03 ↓ -74%
BCBS - Anthem Medicare|Imperial $12.34 ↓ -73%
BrightHealth Commercial|All Plans $13.18 ↓ -71%
Hill Physicians Medicaid|All Plans $13.23 ↓ -71%
United Commercial|Non-Options PPO $14.38 ↓ -68%
United Commercial|HMO $14.38 ↓ -68%
United Commercial|Options PPO $14.38 ↓ -68%
United Commercial|All Other Plans $14.38 ↓ -68%
BlueShield Medicare|Trauma $14.98 ↓ -67%
Molina Medicaid|All Plans $15.77 ↓ -65%
Prison Healthcare Medicaid|All Plans $17.97 ↓ -60%
WCMG Commercial|All Plans $18.26 ↓ -60%
BCBS - Anthem Medicaid|All Plans $21.91 ↓ -52%
Cigna Commercial|LocalPlus $26.54 ↓ -42%
California Health & Wellness Medicaid|All Plans $27.55 ↓ -39%
Health Net Medicaid|All Plans $27.55 ↓ -39%
Aetna Commercial|PPO $35.00 ↓ -23%
Aetna Commercial|All Other Plans $35.00 ↓ -23%
Aetna Commercial|HMO $35.00 ↓ -23%
Cigna Commercial|All Other Plans $35.39 ↓ -22%
Blue Shield CA Commercial|ACO Trio $51.46 ↑ +13%
Western Health Advantage Commercial|All Plans $58.10 ↑ +28%
Blue Shield CA Commercial|ACO Trio CalPers $66.40 ↑ +46%
Kaiser Medicaid|All Plans $68.06 ↑ +50%
Blue Shield CA Commercial|Exchange $69.72 ↑ +53%
Kaiser Commercial|All Plans $89.64 ↑ +97%
Blue Shield CA Commercial|PPO Tandem $91.30 ↑ +101%
Blue Shield CA Commercial|HMO $97.94 ↑ +115%
Blue Shield CA Commercial|CalPers $102.92 ↑ +126%
Blue Shield CA Commercial|PPO $109.56 ↑ +141%
Healthsmart Commercial|All Plans $124.50 ↑ +174%
First Health Commercial|All Plans $124.50 ↑ +174%
Sutter Health Commercial|All Plans $132.80 ↑ +192%
BCBS - Anthem Commercial|Connection EPO $132.80 ↑ +192%
MultiPlan Commercial|All Plans $137.78 ↑ +203%
BCBS - Anthem Commercial|MCS $166.00 ↑ +265%
BCBS - Anthem Commercial|All Other Plans $166.00 ↑ +265%

Visitor-reported prices

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Infectious agent antigen immunoassay ql/sq multi step clostridium difficile toxin at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $63.08 $11.98 – $112.32
Banner Lassen Medical Center Susanville $71.42 $2.40 – $124.16
Petaluma Valley Hospital Petaluma $227.46 $11.74 – $73.37
Arroyo Grande Hospital Santa Maria $146.81 $8.58 – $30.88
Mark Twain Medical Center San Andreas $109.23 $11.98 – $160.72
French Hospital San Luis Obispo $134.46 $4.64 – $36.30
Mercy Hospitals – Bakersfield Bakersfield $108.34 $11.79 – $79.20
Bakersfield Memorial Hospital Bakersfield $107.17 $11.79 – $87.69

All California hospitals for this procedure →