Potassium 24 hour urine 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

$55.85

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.

$227.00

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.

$2.65 with United vs $18.92 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 $2.65 ↓ -95%
Humana Medicare|All Plans $4.73 ↓ -92%
Care 1st Medicare|All Plans $4.73 ↓ -92%
Aetna Medicare|All Plans $4.73 ↓ -92%
First Health Medicare|All Plans $4.73 ↓ -92%
Cigna Medicare|All Plans $4.73 ↓ -92%
BCBS - AZ Medicare|All Plans $4.73 ↓ -92%
Health Choice Medicare|All Plans $4.73 ↓ -92%
Mercy Care Plan Medicaid|All Plans $4.73 ↓ -92%
Mercy Care Plan Medicare|All Plans $4.73 ↓ -92%
Health Choice Medicaid|All Plans $4.85 ↓ -91%
United Medicaid|All Plans $4.85 ↓ -91%
United Medicare|All Plans $4.85 ↓ -91%
United Commercial|Navigate $5.68 ↓ -90%
United Commercial|Options PPO $5.68 ↓ -90%
United Commercial|All Other Plans $5.68 ↓ -90%
Cigna Commercial|Exchange $9.82 ↓ -82%
First Health Commercial|All Plans $10.22 ↓ -82%
Cigna Commercial|LocalPlus SureFit $10.50 ↓ -81%
BCBS - AZ Commercial|MaricopaFocus $12.09 ↓ -78%
BCBS - AZ Commercial|Neighborhood $12.09 ↓ -78%
Cigna Commercial|PPO $13.82 ↓ -75%
Cigna Commercial|All Other Plans $13.82 ↓ -75%
MultiPlan Commercial|All Plans $14.57 ↓ -74%
BCBS - AZ Commercial|All Other Plans $16.12 ↓ -71%
Aetna Commercial|PPO $18.92 ↓ -66%
Aetna Commercial|HMO $18.92 ↓ -66%
BCBS - AZ Commercial|Workers Comp $18.92 ↓ -66%
Aetna Commercial|All Other Plans $18.92 ↓ -66%

Visitor-reported prices

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Potassium 24 hour urine at other Arizona hospitals

Hospital City Cash price Negotiated range
Banner Gateway Medical Center Gilbert $11.62 $4.73 – $41.25
Banner University Medical Center Phoenix Phoenix $11.20 $4.73 – $41.25
Banner University Medical Center Tucson Tucson $11.34 $4.73 – $44.00
Banner University Medical Center South Tucson $10.92 $4.73 – $44.00
Banner Baywood Medical Center Mesa $8.89 $4.73 – $41.25
Banner Behavioral Health Hospital Scottsdale $32.22 $4.73 – $38.50
Banner Boswell Medical Center Sun City $10.57 $4.73 – $44.00
Banner Casa Grande Medical Center Casa Grande $7.91 $4.73 – $41.25

All Arizona hospitals for this procedure →