Mayo myoglobin 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

$5.29

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.

$12.35

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.

$5.45 with Western Growers vs $33.30 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 $5.45 ↑ +3%
Blue Shield CA Commercial|Exchange $6.87 ↑ +30%
Kaiser Commercial|All Plans $6.87 ↑ +30%
First Health Commercial|All Plans $9.15 ↑ +73%
Blue Shield CA Commercial|FFS $9.59 ↑ +81%
Healthsmart Commercial|All Plans $10.02 ↑ +89%
BCBS - Anthem Commercial|Non-MCS $10.57 ↑ +100%
MultiPlan Commercial|All Plans $10.68 ↑ +102%
United Commercial|Non-Options PPO $10.89 ↑ +106%
Humana Medicare|All Plans $10.89 ↑ +106%
Aetna Commercial|All Other Plans $10.89 ↑ +106%
Aetna Commercial|PPO $10.89 ↑ +106%
Aetna Medicare|All Plans $10.89 ↑ +106%
Aetna Commercial|HMO $10.89 ↑ +106%
United Commercial|All Other Plans $10.89 ↑ +106%
United Medicare|All Plans $10.89 ↑ +106%
United Commercial|Options PPO $10.89 ↑ +106%
CenCal Medicaid|> 21 $10.89 ↑ +106%
MHS Hospice Commercial|All Plans $10.89 ↑ +106%
Partnership Health Plan Medicaid|< 21 $10.89 ↑ +106%
Partnership Health Plan Medicaid|> 21 $10.89 ↑ +106%
Scan Health Plan Medicare|All Plans $10.89 ↑ +106%
Kaiser Medicare|All Plans $10.89 ↑ +106%
BCBS - Anthem Medicare|All Plans $10.89 ↑ +106%
BCBS - Anthem Commercial|MCS $10.89 ↑ +106%
Alignment Medicare|All Plans $10.89 ↑ +106%
CenCal Medicaid|< 21 $10.89 ↑ +106%
Health Net Medicaid|> 21 $13.40 ↑ +153%
Health Net Medicaid|< 21 $13.40 ↑ +153%
United Commercial|HMO $15.50 ↑ +193%
Cigna Commercial|PPO $33.30 ↑ +529%
Cigna Commercial|All Other Plans $33.30 ↑ +529%

Visitor-reported prices

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Mayo myoglobin at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $4.77 $0.90 – $34.29
Banner Lassen Medical Center Susanville $5.63 $2.58 – $18.94
Petaluma Valley Hospital Petaluma $62.35 $12.66 – $105.74
Mark Twain Medical Center San Andreas $8.23 $5.90 – $10.89
French Hospital San Luis Obispo $4.85 $2.95 – $39.14
Mercy Hospitals – Bakersfield Bakersfield $95.35 $5.45 – $37.14
Bakersfield Memorial Hospital Bakersfield $94.32 $5.45 – $37.14
Queen of The Valley Medical Center Napa $62.35 $12.92 – $133.63

All California hospitals for this procedure →