Mayo infectious agent nucleic acid amplified probe enterovirus at Arroyo Grande Hospital

1400 E Church St, Santa Maria, CA · CommonSpirit Health · · NPI 1760510937

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

$19.26

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.

$45.00

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.

$22.50 with Western Growers vs $90.42 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
Western Growers Commercial|All Plans $22.50 ↑ +17%
CenCal Medicaid|< 21 $28.07 ↑ +46%
CenCal Medicaid|> 21 $28.07 ↑ +46%
Kaiser Commercial|All Plans $28.35 ↑ +47%
Blue Shield CA Commercial|Exchange $28.35 ↑ +47%
Partnership Health Plan Medicaid|< 21 $31.19 ↑ +62%
Partnership Health Plan Medicaid|> 21 $31.19 ↑ +62%
Humana Medicare|All Plans $35.09 ↑ +82%
Aetna Medicare|All Plans $35.09 ↑ +82%
United Medicare|All Plans $35.09 ↑ +82%
Kaiser Medicare|All Plans $35.09 ↑ +82%
BCBS - Anthem Medicare|All Plans $35.09 ↑ +82%
Alignment Medicare|All Plans $35.09 ↑ +82%
MHS Hospice Commercial|All Plans $35.09 ↑ +82%
Scan Health Plan Medicare|All Plans $35.09 ↑ +82%
First Health Commercial|All Plans $37.80 ↑ +96%
Blue Shield CA Commercial|FFS $39.60 ↑ +106%
Healthsmart Commercial|All Plans $41.40 ↑ +115%
United Commercial|Options PPO $42.11 ↑ +119%
United Commercial|Non-Options PPO $42.11 ↑ +119%
United Commercial|All Other Plans $42.11 ↑ +119%
United Commercial|HMO $42.11 ↑ +119%
BCBS - Anthem Commercial|Non-MCS $43.65 ↑ +127%
MultiPlan Commercial|All Plans $44.10 ↑ +129%
BCBS - Anthem Commercial|MCS $45.00 ↑ +134%
Aetna Commercial|All Other Plans $45.00 ↑ +134%
Aetna Commercial|HMO $45.00 ↑ +134%
Aetna Commercial|PPO $45.00 ↑ +134%
Health Net Medicaid|> 21 $47.18 ↑ +145%
Health Net Medicaid|< 21 $47.18 ↑ +145%
Cigna Commercial|All Other Plans $90.42 ↑ +369%
Cigna Commercial|PPO $90.42 ↑ +369%

Visitor-reported prices

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Mayo infectious agent nucleic acid amplified probe enterovirus at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $19.71 $12.15 – $93.11
Banner Lassen Medical Center Susanville $49.10 $7.02 – $85.36
Petaluma Valley Hospital Petaluma $178.50 $34.39 – $280.28
Mark Twain Medical Center San Andreas $29.97 $24.36 – $44.10
French Hospital San Luis Obispo $17.64 $12.15 – $106.29
Mercy Hospitals – Bakersfield Bakersfield $50.77 $22.50 – $100.84
Bakersfield Memorial Hospital Bakersfield $50.22 $22.50 – $100.84
Queen of The Valley Medical Center Napa $178.50 $35.09 – $354.21

All California hospitals for this procedure →