Mayo immunoassay infectious agent antibody quantitative diptheria igg 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

$124.95

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.

$283.10

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.

$14.99 with CHPW vs $127.40 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 $14.99 ↓ -88%
Kaiser Medicare|All Plans $14.99 ↓ -88%
BCBS - Regence Medicare|All Plans $14.99 ↓ -88%
Optum Medicare|All Plans $15.14 ↓ -88%
Aetna Medicare|All Plans $15.44 ↓ -88%
BCBS - Premera Medicare|All Plans $15.44 ↓ -88%
BCBS - Regence Commercial|All Plans $15.74 ↓ -87%
Humana Medicare|All Plans $16.04 ↓ -87%
Wellcare Medicare|All Plans $16.19 ↓ -87%
United Medicare|All Plans $16.19 ↓ -87%
Molina Medicare|All Plans $16.19 ↓ -87%
Uniform Medical Plan Commercial|All Plans $22.49 ↓ -82%
BCBS - Premera Commercial|All Other Plans $26.23 ↓ -79%
Sound Family Medicine Commercial|All Plans $29.98 ↓ -76%
Molina Commercial|Marketplace Exchange $34.48 ↓ -72%
Coordinated Care Commercial|Ambetter Exchange $35.08 ↓ -72%
BCBS - Premera Commercial|LifeWise Primary Exchange $38.07 ↓ -70%
Cigna Commercial|All Plans $48.12 ↓ -61%
Aetna Commercial|AWH $96.26 ↓ -23%
Aetna Commercial|Sound Health $101.92 ↓ -18%
First Choice Commercial|All Plans $103.34 ↓ -17%
Aetna Commercial|WEA $113.24 ↓ -9%
Aetna Commercial|All Other Plans $113.24 ↓ -9%
United Commercial|All Other Plans $116.08 ↓ -7%
United Commercial|Cascade Care $116.08 ↓ -7%
Aetna Commercial|Rental $124.57 ↓ -0%
MultiPlan Commercial|All Plans $127.40 ↑ +2%

Visitor-reported prices

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Mayo immunoassay infectious agent antibody quantitative diptheria igg at other Washington hospitals

Hospital City Cash price Negotiated range
Providence St Luke's Rehabilitation Medical Center Spokane $66.82 $14.99 – $16.49
Providence St Joseph Hospital Chewelah $317.10 not published
Swedish Medical Center - First Hill Campus Seattle $71.52 $13.49 – $70.45
Providence Sacred Heart Medical Center and Children's Hospital Spokane $161.00 $14.99 – $53.96
Swedish Medical Center Cherry Hill Seattle $71.52 $13.49 – $68.20
Swedish Issaquah Issaquah $71.52 $13.49 – $70.45
Central Medical Center Seattle $68.80 $11.00 – $11.00
Providence Centralia Hospital Centralia $254.28 $14.99 – $93.39

All Washington hospitals for this procedure →