Mayo fibrinogen antigen at Sierra Nevada Memorial Hospital

155 Glasson Way, Grass Valley, CA · CommonSpirit Health · · NPI 1659361392

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

$5.05

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.

$9.25

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.

$6.20 with United vs $9.25 with Kaiser — 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
United Commercial|Non-Options PPO $6.20 ↑ +23%
Kaiser Commercial|All Plans $7.13 ↑ +41%
Blue Shield CA Commercial|Exchange $7.22 ↑ +43%
Blue Shield CA Commercial|ACO Trio $7.68 ↑ +52%
BCBS - Anthem Commercial|Exchange $7.96 ↑ +58%
Cigna Commercial|All Other Plans $8.05 ↑ +59%
Cigna Commercial|PPO $8.05 ↑ +59%
Blue Shield CA Commercial|All Other Plans $8.61 ↑ +70%
First Health Commercial|All Plans $8.79 ↑ +74%
MultiPlan Commercial|All Plans $9.07 ↑ +80%
Healthsmart Commercial|All Plans $9.07 ↑ +80%
BCBS - Anthem Commercial|All Other Plans $9.16 ↑ +81%
BCBS - Anthem Medicaid|All Plans $9.25 ↑ +83%
BCBS - Anthem Medicare|All Plans $9.25 ↑ +83%
BCBS - Anthem Commercial|MCS $9.25 ↑ +83%
Blue Shield CA Medicare|All Plans $9.25 ↑ +83%
Partnership Health Plan Medicaid|< 21 $9.25 ↑ +83%
Partnership Health Plan Medicaid|> 21 $9.25 ↑ +83%
California Health & Wellness Medicaid|All Plans $9.25 ↑ +83%
Humana Commercial|All Plans $9.25 ↑ +83%
Hill Physicians Commercial|All Plans $9.25 ↑ +83%
Humana Medicare|All Plans $9.25 ↑ +83%
Aetna Commercial|All Other Plans $9.25 ↑ +83%
Aetna Commercial|PPO $9.25 ↑ +83%
Aetna Medicare|All Plans $9.25 ↑ +83%
Aetna Commercial|HMO $9.25 ↑ +83%
United Commercial|All Other Plans $9.25 ↑ +83%
United Medicare|All Plans $9.25 ↑ +83%
United Commercial|HMO $9.25 ↑ +83%
Health Net Medicaid|All Plans $9.25 ↑ +83%
Health Net Medicare|All Plans $9.25 ↑ +83%
Kaiser Medicare|All Plans $9.25 ↑ +83%

Visitor-reported prices

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Mayo fibrinogen antigen at other California hospitals

Hospital City Cash price Negotiated range
Banner Lassen Medical Center Susanville $15.50 $2.89 – $25.22
Arroyo Grande Hospital Santa Maria $54.83 $13.27 – $37.26
French Hospital San Luis Obispo $50.22 $7.57 – $43.80
Mercy Medical Center Mt. Shasta Mt Shasta $21.80 $9.25 – $27.45
Northridge Hospital Medical Center Northridge $7.82 $3.93 – $28.01
Mercy Medical Center Redding Redding $14.21 $9.25 – $27.47
St. Elizabeth Community Hospital Red Bluff $16.36 $9.25 – $27.45
Providence Little Co of Mary Med Center San Pedro San Pedro $94.50 $14.46 – $28.92

All California hospitals for this procedure →