Assay of corticosterone 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

$69.05

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.

$156.45

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.

$22.52 with Kaiser vs $140.81 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
Kaiser Medicare|All Plans $22.52 ↓ -67%
CHPW Medicare|All Plans $22.52 ↓ -67%
BCBS - Regence Medicare|All Plans $22.52 ↓ -67%
Optum Medicare|All Plans $22.75 ↓ -67%
BCBS - Premera Medicare|All Plans $23.20 ↓ -66%
Aetna Medicare|All Plans $23.20 ↓ -66%
BCBS - Regence Commercial|All Plans $23.65 ↓ -66%
Humana Medicare|All Plans $24.10 ↓ -65%
Wellcare Medicare|All Plans $24.32 ↓ -65%
Molina Medicare|All Plans $24.32 ↓ -65%
United Medicare|All Plans $24.32 ↓ -65%
Uniform Medical Plan Commercial|All Plans $33.78 ↓ -51%
BCBS - Premera Commercial|All Other Plans $39.41 ↓ -43%
Sound Family Medicine Commercial|All Plans $45.04 ↓ -35%
Molina Commercial|Marketplace Exchange $51.80 ↓ -25%
Coordinated Care Commercial|Ambetter Exchange $52.70 ↓ -24%
BCBS - Premera Commercial|LifeWise Primary Exchange $57.20 ↓ -17%
Cigna Commercial|All Plans $72.28 ↑ +5%
Aetna Commercial|AWH $106.39 ↑ +54%
Aetna Commercial|Sound Health $112.65 ↑ +63%
First Choice Commercial|All Plans $114.21 ↑ +65%
Aetna Commercial|All Other Plans $125.16 ↑ +81%
Aetna Commercial|WEA $125.16 ↑ +81%
United Commercial|Cascade Care $128.29 ↑ +86%
United Commercial|All Other Plans $128.29 ↑ +86%
Aetna Commercial|Rental $137.68 ↑ +99%
MultiPlan Commercial|All Plans $140.81 ↑ +104%

Visitor-reported prices

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Assay of corticosterone at other Washington hospitals

Hospital City Cash price Negotiated range
Central Medical Center Seattle $100.80 $17.00 – $17.00
Providence St Mary Medical Center Walla Walla $116.90 $22.52 – $41.66
MultiCare Valley Hospital Spokane Valley $36.00 $8.53 – $40.83
MultiCare Yakima Memorial Hospital Yakima $36.00 $23.31 – $40.42
St. Anne Hospital Burien $47.78 $22.52 – $140.81
St. Anthony Hospital Gig Harbor $47.59 $22.52 – $136.81
MultiCare Auburn Medical Center Auburn $36.00 $8.73 – $44.14
MultiCare Good Samaritan Hospital Puyallup $36.00 $8.93 – $44.14

All Washington hospitals for this procedure →