Infectious agent antigen immunoassay ql/sq multi step hepatitis b surface agn neutralization 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

$20.46

Cash price

?

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.

$30.71

Gross charge

?

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.

$9.18 with BCBS - Anthem vs $25.32 with Multiplan — same scan, same building. Share

Negotiated rates by payer
?

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
?

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
?

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 Medicaid|All Plans $9.18 ↓ -55%
Kaiser Medicaid|All Plans $9.18 ↓ -55%
Health Net Medicaid|All Plans $9.18 ↓ -55%
California Health & Wellness Medicaid|All Plans $9.18 ↓ -55%
Health Plan of San Joaquin Medicaid|All Plans $9.18 ↓ -55%
Care 1st Medicare|All Plans $10.33 ↓ -50%
Humana Medicare|All Plans $10.33 ↓ -50%
Aetna Medicare|All Plans $10.33 ↓ -50%
United Medicare|All Plans $10.33 ↓ -50%
Health Net Medicare|All Plans $10.33 ↓ -50%
Kaiser Medicare|All Plans $10.33 ↓ -50%
BCBS - Anthem Medicare|All Plans $10.33 ↓ -50%
Blue Shield CA Medicare|All Plans $10.33 ↓ -50%
Scan Health Plan Medicare|All Plans $10.33 ↓ -50%
BCBS - Anthem Commercial|Exchange $13.99 ↓ -32%
United Commercial|Select $15.03 ↓ -27%
Blue Shield CA Commercial|HMO $16.54 ↓ -19%
Blue Shield CA Commercial|PPO $16.54 ↓ -19%
Blue Shield CA Commercial|Exchange $16.54 ↓ -19%
United Commercial|Choice $17.24 ↓ -16%
BCBS - Anthem Commercial|All Other Plans $17.93 ↓ -12%
Health Net Commercial|All Plans $19.30 ↓ -6%
First Health Commercial|All Plans $19.38 ↓ -5%
United Commercial|HMO $20.26 ↓ -1%
Aetna Commercial|All Other Plans $21.11 ↑ +3%
Aetna Commercial|HMO $21.11 ↑ +3%
Aetna Commercial|PPO $21.11 ↑ +3%
Kaiser Commercial|All Plans $21.96 ↑ +7%
Cigna Commercial|PPO $23.12 ↑ +13%
Cigna Commercial|All Other Plans $23.12 ↑ +13%
Multiplan Commercial|All Plans $25.32 ↑ +24%

Visitor-reported prices

visitor-reported
Report what you paid sign in to post

Comments

Add a comment sign in to post

Infectious agent antigen immunoassay ql/sq multi step hepatitis b surface agn neutralization at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $70.08 $8.30 – $27.39
Banner Lassen Medical Center Susanville $19.53 $2.07 – $24.25
Petaluma Valley Hospital Petaluma $12.46 $10.12 – $84.25
Arroyo Grande Hospital Santa Maria $13.15 $8.26 – $30.10
French Hospital San Luis Obispo $12.04 $8.26 – $31.27
Mercy Hospitals – Bakersfield Bakersfield $18.55 $6.50 – $29.66
Bakersfield Memorial Hospital Bakersfield $16.52 $6.50 – $29.66
Queen of The Valley Medical Center Napa $12.46 $10.33 – $106.47

All California hospitals for this procedure →