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White Cell Chemotaxis Assay

Washington rates for HCPCS 86155

A laboratory test that measures how well white blood cells move towards a chemical signal, the way they normally travel to the site of an infection. Sluggish movement points to a defect in the immune system's ability to bring defending cells where they are needed.

Rates data updated July 2026.

How much does White Cell Chemotaxis Assay cost?

$15.85

Typical negotiated rate. In Washington, July 2026.

Insurers have agreed to pay about $15.85 for this service. The price depends on where it is billed: about $15.14 from a physician practice, and about $22.39 from a hospital or other facility. The two figures are alternatives, not parts of one bill.

These are rates insurers have negotiated with providers, not the amount a patient is billed. What you owe depends on your plan's deductible and coinsurance. Based on rates published by 9 insurance carriers under federal price transparency rules.

Where it's billed changes the price

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$15.14$13.80 to $16.98
FacilityA hospital or hospital-owned outpatient department$22.39$15.85 to $34.67

How much rates vary

Facilitymedian $22 · 10th to 90th $14 to $68Professionalmedian $15 · 10th to 90th $7 to $29
$10$20$50$100facility $22professional $15

Distribution of negotiated rates across all payers (price axis is log-scale). Each curve is scaled to its own total: facility and professional rates are different services, shown together to compare where they cluster. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$7.94
Median
$30.20
Typical High
$87.10
Aetna
Setting
Professional
Modifier
Global
Typical Low
$12.30
Median
$15.14
Typical High
$104.71
Asuris Northwest Health
Setting
Facility
Modifier
Global
Typical Low
$15.85
Median
$19.95
Typical High
$43.65
Asuris Northwest Health
Setting
Professional
Modifier
Global
Typical Low
$12.02
Median
$14.45
Typical High
$16.22
Cigna
Setting
Facility
Modifier
Global
Typical Low
$16.60
Median
$33.88
Typical High
$51.29
Cigna
Setting
Professional
Modifier
Global
Typical Low
$8.91
Median
$16.98
Typical High
$25.12
Molina
Setting
Professional
Modifier
Global
Typical Low
$10.23
Median
$14.13
Typical High
$64.57
Pacific Source
Setting
Facility
Modifier
Global
Typical Low
$15.85
Median
$15.85
Typical High
$32.36
Pacific Source
Setting
Professional
Modifier
Global
Typical Low
$14.45
Median
$15.85
Typical High
$19.05
Premera BCBS
Setting
Facility
Modifier
Global
Typical Low
$15.85
Median
$25.70
Typical High
$43.65
Premera BCBS
Setting
Professional
Modifier
Global
Typical Low
$14.45
Median
$14.45
Typical High
$19.05
Regence BlueShield
Setting
Facility
Modifier
Global
Typical Low
$15.85
Median
$23.99
Typical High
$43.65
Regence BlueShield
Setting
Professional
Modifier
Global
Typical Low
$12.02
Median
$14.45
Typical High
$15.85
United
Setting
Facility
Modifier
Global
Typical Low
$15.14
Median
$19.05
Typical High
$19.05
United
Setting
Professional
Modifier
Global
Typical Low
$6.76
Median
$7.94
Typical High
$17.78
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$7.24
Median
$8.32
Typical High
$28.84

Where Washington sits

The same service costs 2.4 times more in Hawaii than in Maryland. Every bar is a state, most expensive first. Touch or drag across it to read any state, then open that state for its carriers and full range.

Washington· 29th of 51

$15.85

HI $28.84MD $12.02

Median negotiated rate in each state, from every insurer that publishes one. States where no insurer publishes a rate for this service are not shown.