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White Cell Chemotaxis Assay

Montana 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?

$22.39

Typical negotiated rate. In Montana, July 2026.

Insurers have agreed to pay about $22.39 for this service. The price depends on where it is billed: about $20.89 from a physician practice, and about $23.99 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 5 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$20.89$18.20 to $48.98
FacilityA hospital or hospital-owned outpatient department$23.99$19.95 to $30.90

How much rates vary

Facilitymedian $24 · 10th to 90th $16 to $50Professionalmedian $21 · 10th to 90th $11 to $105
$10$20$50$100facility $24professional $21

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
Professional
Modifier
Global
Typical Low
$18.20
Median
$18.20
Typical High
$104.71
Cigna
Setting
Facility
Modifier
Global
Typical Low
$23.44
Median
$26.92
Typical High
$91.20
Cigna
Setting
Professional
Modifier
Global
Typical Low
$10.96
Median
$18.20
Typical High
$23.44
MountainHealth Co-op
Setting
Facility
Modifier
Global
Typical Low
$15.85
Median
$22.39
Typical High
$48.98
MountainHealth Co-op
Setting
Professional
Modifier
Global
Typical Low
$15.85
Median
$22.39
Typical High
$48.98
Providence
Setting
Facility
Modifier
Global
Typical Low
$23.44
Median
$30.90
Typical High
$91.20
Providence
Setting
Professional
Modifier
Global
Typical Low
$14.45
Median
$14.45
Typical High
$23.44
United
Setting
Facility
Modifier
Global
Typical Low
$15.85
Median
$15.85
Typical High
$15.85
United
Setting
Professional
Modifier
Global
Typical Low
$6.76
Median
$9.12
Typical High
$22.39

Where Montana 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.

Montana· 7th of 51

$22.39

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.