Phosphorus 24 hour urine at St. Michael Medical Center

1800 NW Myhre Rd, Silverdale, WA · Vmfh · · NPI 1518912609

Source: hospital's published price file ↗ · Published Feb 28, 2026 · Ingested Sep 17, 2026

$42.26

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.

$95.75

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.

$5.78 with CHPW vs $86.18 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
CHPW Medicare|All Plans $5.78 ↓ -86%
Kaiser Medicare|All Plans $5.78 ↓ -86%
BCBS - Regence Medicare|All Plans $5.78 ↓ -86%
Optum Medicare|All Plans $5.84 ↓ -86%
BCBS - Premera Medicare|All Plans $5.95 ↓ -86%
Aetna Medicare|All Plans $5.95 ↓ -86%
BCBS - Regence Commercial|All Plans $6.07 ↓ -86%
Humana Medicare|All Plans $6.18 ↓ -85%
Molina Medicare|All Plans $6.24 ↓ -85%
Wellcare Medicare|All Plans $6.24 ↓ -85%
United Medicare|All Plans $6.24 ↓ -85%
Uniform Medical Plan Commercial|All Plans $8.67 ↓ -79%
BCBS - Premera Commercial|All Other Plans $10.12 ↓ -76%
Sound Family Medicine Commercial|All Plans $11.56 ↓ -73%
Molina Commercial|Marketplace Exchange $13.29 ↓ -69%
Coordinated Care Commercial|Ambetter Exchange $13.53 ↓ -68%
BCBS - Premera Commercial|LifeWise Primary Exchange $14.68 ↓ -65%
Cigna Commercial|All Plans $16.60 ↓ -61%
Aetna Commercial|AWH $65.11 ↑ +54%
Aetna Commercial|Sound Health $68.94 ↑ +63%
First Choice Commercial|All Plans $69.90 ↑ +65%
Aetna Commercial|All Other Plans $76.60 ↑ +81%
Aetna Commercial|WEA $76.60 ↑ +81%
United Commercial|Cascade Care $78.52 ↑ +86%
United Commercial|All Other Plans $78.52 ↑ +86%
Aetna Commercial|Rental $84.26 ↑ +99%
MultiPlan Commercial|All Plans $86.18 ↑ +104%

Visitor-reported prices

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Phosphorus 24 hour urine at other Washington hospitals

Hospital City Cash price Negotiated range
Providence St Luke's Rehabilitation Medical Center Spokane $34.65 $5.78 – $6.36
Providence St Joseph Hospital Chewelah $162.40 not published
Swedish Medical Center - First Hill Campus Seattle $24.96 $5.20 – $27.17
Providence Sacred Heart Medical Center and Children's Hospital Spokane $45.50 $5.78 – $20.81
Swedish Medical Center Cherry Hill Seattle $24.96 $5.20 – $26.30
Swedish Issaquah Issaquah $24.96 $5.20 – $27.17
Central Medical Center Seattle $25.60 $4.00 – $4.00
Providence Mount Carmel Hospital Colville $86.10 not published

All Washington hospitals for this procedure →