Potassium 24 hour urine at MultiCare Mary Bridge Children's Hospital

317 Martin Luther King Jr Way, Tacoma, WA · Multicare · · NPI 1306952726

Source: hospital's published price file ↗ · Published Aug 27, 2026 · Ingested Sep 17, 2026

$11.20

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.

$28.00

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.

$3.45 with Molina vs $36.52 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
Molina Apple Health $3.45 ↓ -69%
WellPoint Apple Health $3.45 ↓ -69%
United Healthcare Apple Health $3.73 ↓ -67%
Community Health Plan of Washington Apple Health $3.73 ↓ -67%
Coordinated Care Apple Health $3.73 ↓ -67%
SCAN MedAdvantage $4.64 ↓ -59%
Premera HMO $4.73 ↓ -58%
Premera Signature $4.73 ↓ -58%
Premera Prime $4.73 ↓ -58%
Regence Blue High Performance $4.76 ↓ -58%
Regence MCC/AHN $4.76 ↓ -58%
Regence MedAdvantage $4.77 ↓ -57%
Aetna MedAdvantage $4.77 ↓ -57%
United Healthcare MedAdvantage HMO $4.82 ↓ -57%
WellCare MedAdvantage $4.87 ↓ -57%
Molina MedAdvantage $4.87 ↓ -57%
Regence RealValue $4.90 ↓ -56%
Community Health Plan of Washington MedAdvantage $5.10 ↓ -54%
Uniform Medical All Commercial Plans $5.44 ↓ -51%
Regence Commercial $5.44 ↓ -51%
United Healthcare All Commercial Plans $5.68 ↓ -49%
Premera Other Commercial Plans $5.91 ↓ -47%
Community Health Plan of Washington Cascade Care $10.87 ↓ -3%
Ambetter Coordinated Care Exchange $12.25 ↑ +9%
First Choice MHS Employee MCC/PPO $14.21 ↑ +27%
First Choice First Choice PPO $16.52 ↑ +48%
First Choice MCC Wellfound Employee $16.52 ↑ +48%
First Health All Commercial Plans $17.38 ↑ +55%
Multiplan/PHCS All Commercial Plans $17.60 ↑ +57%
Cigna All Commercial Plans $17.91 ↑ +60%
Aetna All Commercial Plans $36.52 ↑ +226%
Kaiser HMO/PPO not published by hospital

Visitor-reported prices

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Potassium 24 hour urine at other Washington hospitals

Hospital City Cash price Negotiated range
St. Joseph Medical Center Tacoma $33.94 $4.73 – $76.85
MultiCare Allenmore Hospital Tacoma $11.20 $3.47 – $9.27
Providence St Luke's Rehabilitation Medical Center Spokane $34.65 $4.73 – $5.20
Providence St Joseph Hospital Chewelah $61.60 not published
Swedish Medical Center - First Hill Campus Seattle $30.72 $4.26 – $22.23
Providence Sacred Heart Medical Center and Children's Hospital Spokane $45.50 $4.73 – $17.03
Swedish Medical Center Cherry Hill Seattle $30.72 $4.26 – $21.52
Swedish Issaquah Issaquah $30.72 $4.26 – $22.23

All Washington hospitals for this procedure →