Hemolysins and agglutinins incubated at French Hospital

1911 Johnson Ave, San Luis Obispo, CA · CommonSpirit Health · · NPI 1881760452

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

$113.45

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.

$289.41

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.

$12.11 with United vs $63.49 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
United Medicare|All Plans $12.11 ↓ -89%
Humana Commercial|All Plans $12.11 ↓ -89%
Health Net Medicare|All Plans $12.11 ↓ -89%
BCBS - Anthem Medicare|All Plans $12.11 ↓ -89%
Aetna Medicare|All Plans $12.11 ↓ -89%
Alignment Medicare|All Plans $12.11 ↓ -89%
MHS Hospice Commercial|All Plans $12.11 ↓ -89%
Kaiser Medicare|All Plans $12.11 ↓ -89%
Humana Medicare|All Plans $12.11 ↓ -89%
Blue Shield CA Medicare|All Plans $12.11 ↓ -89%
CenCal Medicaid|> 21 $13.88 ↓ -88%
CenCal Medicaid|< 21 $13.88 ↓ -88%
United Commercial|All Other Plans $14.53 ↓ -87%
United Commercial|HMO $14.53 ↓ -87%
United Commercial|Non-Options PPO $14.53 ↓ -87%
Molina Medicaid|> 21 $15.18 ↓ -87%
Molina Medicaid|< 21 $15.18 ↓ -87%
Partnership Health Plan Medicaid|< 21 $15.18 ↓ -87%
Partnership Health Plan Medicaid|> 21 $15.18 ↓ -87%
BCBS - Anthem Medicaid|All Plans $15.18 ↓ -87%
MHS HSPCC Commercial|All Plans $17.15 ↓ -85%
Health Net Medicaid|> 21 $18.67 ↓ -84%
Health Net Medicaid|< 21 $18.67 ↓ -84%
Blue Shield CA Commercial|Exchange $30.48 ↓ -73%
Western Growers Commercial|All Plans $31.75 ↓ -72%
Health Net Commercial|FFS $35.56 ↓ -69%
Cigna Commercial|All Other Plans $36.67 ↓ -68%
Cigna Commercial|PPO $36.67 ↓ -68%
Kaiser Commercial|All Plans $39.37 ↓ -65%
Blue Shield CA Commercial|FFS $43.18 ↓ -62%
Healthsmart Commercial|All Plans $53.97 ↓ -52%
First Health Commercial|All Plans $53.97 ↓ -52%
BCBS - Anthem Commercial|Non-MCS $59.69 ↓ -47%
BCBS - Anthem Commercial|MCS $60.96 ↓ -46%
MultiPlan Commercial|All Plans $62.23 ↓ -45%
Aetna Commercial|Gatekeeper $63.49 ↓ -44%
Aetna Commercial|Non-Gatekeeper $63.49 ↓ -44%

Visitor-reported prices

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Hemolysins and agglutinins incubated at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $448.95 $12.11 – $49.53
Arroyo Grande Hospital Santa Maria $123.87 $12.11 – $62.23
Mercy Medical Center Mt. Shasta Mt Shasta $49.40 $10.58 – $62.23
Northridge Hospital Medical Center Northridge $17.72 $8.89 – $63.49
Providence Cedars-Sinai Tarzana Medical Center Tarzana $26.78 $12.11 – $32.32
Sequoia Hospital Redwood City $34.40 $12.11 – $77.49
California Hospital Medical Center Los Angeles $75.18 $12.11 – $122.45
St. Mary Medical Center Long Beach $118.53 $12.11 – $190.00

All California hospitals for this procedure →