Fern test at Mercy Gilbert Medical Center

3555 S Val Vista Dr, Gilbert, AZ · CommonSpirit Health · · NPI 1992735088

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

$17.72

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.

$72.00

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.

$9.74 with Care 1st vs $67.77 with BCBS - AZ — 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
Care 1st Medicare|All Plans $9.74 ↓ -45%
Humana Medicare|All Plans $9.74 ↓ -45%
Aetna Medicare|All Plans $9.74 ↓ -45%
First Health Medicare|All Plans $9.74 ↓ -45%
Cigna Medicare|All Plans $9.74 ↓ -45%
BCBS - AZ Medicare|All Plans $9.74 ↓ -45%
Health Choice Medicare|All Plans $9.74 ↓ -45%
Mercy Care Plan Medicaid|All Plans $9.74 ↓ -45%
Mercy Care Plan Medicare|All Plans $9.74 ↓ -45%
United Medicaid|All Plans $9.98 ↓ -44%
Health Choice Medicaid|All Plans $9.98 ↓ -44%
United Medicare|All Plans $9.99 ↓ -44%
United Commercial|DignityHealthEmployee $10.08 ↓ -43%
United Commercial|All Other Plans $11.69 ↓ -34%
United Commercial|Navigate $11.69 ↓ -34%
United Commercial|Options PPO $11.69 ↓ -34%
Cigna Commercial|Exchange $20.26 ↑ +14%
Cigna Commercial|LocalPlus SureFit $21.65 ↑ +22%
Cigna Commercial|PPO $28.49 ↑ +61%
Cigna Commercial|All Other Plans $28.49 ↑ +61%
BCBS - AZ Commercial|Neighborhood $34.23 ↑ +93%
BCBS - AZ Commercial|MaricopaFocus $34.23 ↑ +93%
First Health Commercial|All Plans $38.88 ↑ +119%
BCBS - AZ Commercial|All Other Plans $45.63 ↑ +158%
Aetna Commercial|PPO $49.41 ↑ +179%
Aetna Commercial|All Other Plans $49.41 ↑ +179%
Aetna Commercial|HMO $49.41 ↑ +179%
MultiPlan Commercial|All Plans $55.44 ↑ +213%
BCBS - AZ Commercial|Workers Comp $67.77 ↑ +282%

Visitor-reported prices

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Fern test at other Arizona hospitals

Hospital City Cash price Negotiated range
St. Joseph’s Hospital and Medical Center Phoenix $21.01 $4.09 – $43.45
Chandler Regional Medical Center Chandler $19.30 $5.84 – $60.48

All Arizona hospitals for this procedure →