Electron microscopy diagnostic 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

$576.40

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.

$1,470.40

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.

$11.34 with MHS HSPCC vs $1,168.77 with Cigna — 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
MHS HSPCC Commercial|All Plans $11.34 ↓ -98%
Western Growers Commercial|All Plans $21.00 ↓ -96%
Health Net Commercial|FFS $23.52 ↓ -96%
Kaiser Commercial|All Plans $26.04 ↓ -95%
First Health Commercial|All Plans $35.70 ↓ -94%
Healthsmart Commercial|All Plans $35.70 ↓ -94%
BCBS - Anthem Commercial|Non-MCS $39.48 ↓ -93%
BCBS - Anthem Commercial|MCS $40.32 ↓ -93%
MultiPlan Commercial|All Plans $41.16 ↓ -93%
United Commercial|Non-Options PPO $42.00 ↓ -93%
Health Net Medicare|All Plans $42.00 ↓ -93%
Humana Commercial|All Plans $42.00 ↓ -93%
Humana Medicare|All Plans $42.00 ↓ -93%
Aetna Medicare|All Plans $42.00 ↓ -93%
Aetna Commercial|Gatekeeper $42.00 ↓ -93%
Aetna Commercial|Non-Gatekeeper $42.00 ↓ -93%
Molina Medicaid|< 21 $42.00 ↓ -93%
Molina Medicaid|> 21 $42.00 ↓ -93%
United Commercial|All Other Plans $42.00 ↓ -93%
United Commercial|HMO $42.00 ↓ -93%
Alignment Medicare|All Plans $42.00 ↓ -93%
Blue Shield CA Medicare|All Plans $42.00 ↓ -93%
CenCal Medicaid|< 21 $42.00 ↓ -93%
CenCal Medicaid|> 21 $42.00 ↓ -93%
Partnership Health Plan Medicaid|< 21 $42.00 ↓ -93%
Partnership Health Plan Medicaid|> 21 $42.00 ↓ -93%
Kaiser Medicare|All Plans $42.00 ↓ -93%
BCBS - Anthem Medicaid|All Plans $42.00 ↓ -93%
BCBS - Anthem Medicare|All Plans $42.00 ↓ -93%
Health Net Medicaid|< 21 $51.66 ↓ -91%
Health Net Medicaid|> 21 $51.66 ↓ -91%
MHS Hospice Commercial|All Plans $733.93 ↑ +27%
United Medicare|All Plans $1,037.95 ↑ +80%
Cigna Commercial|PPO $1,168.77 ↑ +103%
Cigna Commercial|All Other Plans $1,168.77 ↑ +103%

Visitor-reported prices

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Electron microscopy diagnostic at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $83.66 $51.57 – $1,023.81
Banner Lassen Medical Center Susanville $295.40 $163.38 – $679.00
Petaluma Valley Hospital Petaluma $1,200.54 $271.27 – $1,256.40
Arroyo Grande Hospital Santa Maria $629.34 $21.00 – $994.21
Mark Twain Medical Center San Andreas $458.21 $177.99 – $674.24
Mercy Hospitals – Bakersfield Bakersfield $204.05 $260.50 – $1,108.83
Bakersfield Memorial Hospital Bakersfield $201.85 $260.50 – $1,108.83
Queen of The Valley Medical Center Napa $558.96 $342.82 – $1,256.40

All California hospitals for this procedure →