Cell function assay w/stim 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

$133.69

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.

$543.44

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.

$48.61 with United vs $347.18 with Aetna — 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
United Commercial|DignityHealthEmployee $48.61 ↓ -64%
Humana Medicare|All Plans $135.86 ↑ +2%
Care 1st Medicare|All Plans $135.86 ↑ +2%
Aetna Medicare|All Plans $135.86 ↑ +2%
First Health Medicare|All Plans $135.86 ↑ +2%
Cigna Medicare|All Plans $135.86 ↑ +2%
BCBS - AZ Medicare|All Plans $135.86 ↑ +2%
Health Choice Medicare|All Plans $135.86 ↑ +2%
Mercy Care Plan Medicaid|All Plans $135.86 ↑ +2%
Mercy Care Plan Medicare|All Plans $135.86 ↑ +2%
Health Choice Medicaid|All Plans $139.26 ↑ +4%
United Medicaid|All Plans $139.26 ↑ +4%
United Medicare|All Plans $139.26 ↑ +4%
United Commercial|Navigate $163.03 ↑ +22%
United Commercial|Options PPO $163.03 ↑ +22%
United Commercial|All Other Plans $163.03 ↑ +22%
First Health Commercial|All Plans $187.48 ↑ +40%
MultiPlan Commercial|All Plans $267.33 ↑ +100%
Cigna Commercial|Exchange $282.59 ↑ +111%
Cigna Commercial|LocalPlus SureFit $302.02 ↑ +126%
BCBS - AZ Commercial|Neighborhood $346.90 ↑ +159%
BCBS - AZ Commercial|MaricopaFocus $346.90 ↑ +159%
Cigna Commercial|PPO $347.18 ↑ +160%
Cigna Commercial|All Other Plans $347.18 ↑ +160%
BCBS - AZ Commercial|Workers Comp $347.18 ↑ +160%
BCBS - AZ Commercial|All Other Plans $347.18 ↑ +160%
Aetna Commercial|All Other Plans $347.18 ↑ +160%
Aetna Commercial|PPO $347.18 ↑ +160%
Aetna Commercial|HMO $347.18 ↑ +160%

Visitor-reported prices

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Cell function assay w/stim at other Arizona hospitals

Hospital City Cash price Negotiated range
Banner Gateway Medical Center Gilbert $59.98 $135.86 – $306.00
Banner University Medical Center Phoenix Phoenix $77.52 $135.86 – $306.00
Banner University Medical Center Tucson Tucson $87.72 $135.86 – $326.40
Banner University Medical Center South Tucson $55.49 $135.86 – $326.40
Banner Baywood Medical Center Mesa $68.54 $135.86 – $306.00
Banner Boswell Medical Center Sun City $74.66 $135.86 – $326.40
Banner Casa Grande Medical Center Casa Grande $69.36 $135.86 – $306.00
Banner Del Webb Medical Center Sun City West $53.45 $135.86 – $326.40

All Arizona hospitals for this procedure →