go back

White Cell Chemotaxis Assay

Massachusetts 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?

$18.20

Typical negotiated rate. In Massachusetts, July 2026.

Insurers have agreed to pay about $18.20 for this service. The price depends on where it is billed: about $15.85 from a physician practice, and about $39.81 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 8 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$15.85$15.14 to $24.55
FacilityA hospital or hospital-owned outpatient department$39.81$22.39 to $48.98

How much rates vary

Facilitymedian $40 · 10th to 90th $15 to $68Professionalmedian $16 · 10th to 90th $13 to $49
$10$50$200$1Kfacility $40professional $16

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
$15.14
Median
$37.15
Typical High
$67.61
Aetna
Setting
Professional
Modifier
Global
Typical Low
$14.45
Median
$15.14
Typical High
$70.79
AllWays Health Partners
Setting
Facility
Modifier
Global
Typical Low
$14.45
Median
$22.39
Typical High
$100.00
AllWays Health Partners
Setting
Professional
Modifier
Global
Typical Low
$7.94
Median
$15.85
Typical High
$38.90
BCBS
Setting
Facility
Modifier
Global
Typical Low
$31.62
Median
$39.81
Typical High
$56.23
BCBS
Setting
Professional
Modifier
Global
Typical Low
$15.14
Median
$15.14
Typical High
$20.42
Cigna
Setting
Facility
Modifier
Global
Typical Low
$12.59
Median
$25.12
Typical High
$41.69
Cigna
Setting
Professional
Modifier
Global
Typical Low
$9.77
Median
$18.20
Typical High
$41.69
Fallon Health
Setting
Facility
Modifier
Global
Typical Low
$18.20
Median
$125.89
Typical High
$7,079.46
Fallon Health
Setting
Professional
Modifier
Global
Typical Low
$22.91
Median
$22.91
Typical High
$26.92
Harvard Pilgrim
Setting
Professional
Modifier
Global
Typical Low
$15.85
Median
$15.85
Typical High
$48.98
Mass General Brigham
Setting
Facility
Modifier
Global
Typical Low
$14.45
Median
$22.39
Typical High
$100.00
Mass General Brigham
Setting
Professional
Modifier
Global
Typical Low
$7.94
Median
$15.85
Typical High
$38.90
United
Setting
Facility
Modifier
Global
Typical Low
$9.12
Median
$15.85
Typical High
$23.44
United
Setting
Professional
Modifier
Global
Typical Low
$7.24
Median
$14.45
Typical High
$40.74

Where Massachusetts 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.

Massachusetts· 20th of 51

$18.20

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.