Assay of interleukin-6 (il-6) at St. Joseph’s Hospital and Medical Center

350 W Thomas Rd, Phoenix, AZ · CommonSpirit Health · · NPI 1982733655

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

$99.32

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.

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What you pay up front if you don't use insurance.

$260.00

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.

$13.11 with United vs $54.51 with MultiPlan — 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 $13.11 ↓ -87%
Optum Commercial|OptumHealth $32.43 ↓ -67%
Cigna Commercial|LifeSource $37.95 ↓ -62%
Other Commercial|NTN $41.40 ↓ -58%
LifeTrac Commercial|All Plans $44.85 ↓ -55%
Health Net Commercial|Interlink $48.30 ↓ -51%
First Health Commercial|All Plans $48.30 ↓ -51%
MultiPlan Commercial|All Plans $54.51 ↓ -45%

Visitor-reported prices

visitor-reported
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Assay of interleukin-6 (il-6) at other Arizona hospitals

Hospital City Cash price Negotiated range
Banner University Medical Center Phoenix Phoenix $17.44 $16.74 – $81.75
Banner Estrella Medical Center Phoenix $17.22 $17.27 – $81.75
Arizona General Hospital Laveen Phoenix $59.54 $10.36 – $212.42
Mercy Gilbert Medical Center Gilbert $17.00 $9.68 – $53.20
Banner University Medical Center Tucson Tucson $17.66 $17.27 – $87.20
Banner University Medical Center South Tucson $17.00 $17.27 – $87.20
Banner Baywood Medical Center Mesa $13.84 $17.27 – $81.75
Banner Boswell Medical Center Sun City $16.46 $17.27 – $87.20

All Arizona hospitals for this procedure →