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White Cell Chemotaxis Assay

Rhode Island 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?

$18.62

Typical negotiated rate. In Rhode Island, July 2026.

Insurers have agreed to pay about $18.62 for this service. The price depends on where it is billed: about $16.60 from a physician practice, and about $47.86 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 4 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$16.60$12.02 to $16.60
FacilityA hospital or hospital-owned outpatient department$47.86$20.42 to $91.20

How much rates vary

Facilitymedian $48 · 10th to 90th $19 to $102Professionalmedian $17 · 10th to 90th $10 to $32
$10$20$50$100facility $48professional $17

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
$26.30
Median
$64.57
Typical High
$102.33
Aetna
Setting
Professional
Modifier
Global
Typical Low
$16.60
Median
$16.60
Typical High
$47.86
BCBS
Setting
Facility
Modifier
Global
Typical Low
$18.62
Median
$19.50
Typical High
$21.88
BCBS
Setting
Professional
Modifier
Global
Typical Low
$8.91
Median
$12.02
Typical High
$23.99
Cigna
Setting
Facility
Modifier
Global
Typical Low
$15.14
Median
$38.02
Typical High
$67.61
Cigna
Setting
Professional
Modifier
Global
Typical Low
$11.75
Median
$17.78
Typical High
$23.99
United
Setting
Facility
Modifier
Global
Typical Low
$19.05
Median
$19.05
Typical High
$31.62
United
Setting
Professional
Modifier
Global
Typical Low
$5.25
Median
$13.49
Typical High
$31.62

Where Rhode Island 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.

Rhode Island· 16th of 51

$18.62

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.