Assay of prostaglandin 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

$139.10

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.

$325.00

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.

$38.97 with Partnership Health Plan vs $115.00 with BCBS - Anthem — 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
Partnership Health Plan Medicaid|< 21 $38.97 ↓ -72%
CenCal Medicaid|> 21 $38.97 ↓ -72%
CenCal Medicaid|< 21 $38.97 ↓ -72%
Partnership Health Plan Medicaid|> 21 $38.97 ↓ -72%
MHS Hospice Commercial|All Plans $41.77 ↓ -70%
United Medicare|All Plans $41.77 ↓ -70%
Kaiser Medicare|All Plans $41.77 ↓ -70%
Humana Medicare|All Plans $41.77 ↓ -70%
Scan Health Plan Medicare|All Plans $41.77 ↓ -70%
Aetna Medicare|All Plans $41.77 ↓ -70%
Alignment Medicare|All Plans $41.77 ↓ -70%
BCBS - Anthem Medicare|All Plans $41.77 ↓ -70%
United Commercial|Non-Options PPO $50.12 ↓ -64%
United Commercial|All Other Plans $50.12 ↓ -64%
United Commercial|HMO $50.12 ↓ -64%
United Commercial|Options PPO $50.12 ↓ -64%
Western Growers Commercial|All Plans $57.50 ↓ -59%
Health Net Medicaid|> 21 $58.95 ↓ -58%
Health Net Medicaid|< 21 $58.95 ↓ -58%
Kaiser Commercial|All Plans $72.45 ↓ -48%
Blue Shield CA Commercial|Exchange $72.45 ↓ -48%
First Health Commercial|All Plans $96.60 ↓ -31%
Blue Shield CA Commercial|FFS $101.20 ↓ -27%
Healthsmart Commercial|All Plans $105.80 ↓ -24%
Cigna Commercial|PPO $107.62 ↓ -23%
Cigna Commercial|All Other Plans $107.62 ↓ -23%
BCBS - Anthem Commercial|Non-MCS $111.55 ↓ -20%
MultiPlan Commercial|All Plans $112.70 ↓ -19%
Aetna Commercial|HMO $115.00 ↓ -17%
Aetna Commercial|PPO $115.00 ↓ -17%
Aetna Commercial|All Other Plans $115.00 ↓ -17%
BCBS - Anthem Commercial|MCS $115.00 ↓ -17%

Visitor-reported prices

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Assay of prostaglandin at other California hospitals

Hospital City Cash price Negotiated range
Banner Lassen Medical Center Susanville $203.45 $8.35 – $315.25
Mark Twain Medical Center San Andreas $216.45 $38.97 – $318.50
French Hospital San Luis Obispo $127.40 $31.05 – $126.52
Mercy Medical Center Mt. Shasta Mt Shasta $252.85 $27.17 – $112.70
Northridge Hospital Medical Center Northridge $90.68 $38.97 – $325.00
Mercy Medical Center Redding Redding $164.78 $27.17 – $112.70
St. Elizabeth Community Hospital Red Bluff $189.80 $27.17 – $112.70
Petaluma Valley Hospital Petaluma not published $40.93 – $203.73

All California hospitals for this procedure →