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Western Blot Protein Test

Louisiana rates for HCPCS 84181

A laboratory test that uses a technique called a Western blot to detect a specific protein in a sample of blood or other body fluid. It is often used to confirm the results of an earlier screening test, such as one used to check for a particular infection.

Rates data updated July 2026.

How much does Western Blot Protein Test cost?

$20.89

Typical negotiated rate. In Louisiana, July 2026.

Insurers have agreed to pay about $20.89 for this service. The price depends on where it is billed: about $20.42 from a physician practice, and about $23.44 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$20.42$16.60 to $21.88
FacilityA hospital or hospital-owned outpatient department$23.44$20.42 to $44.67

How much rates vary

Facilitymedian $23 · 10th to 90th $17 to $62Professionalmedian $20 · 10th to 90th $13 to $35
$2.0$5.0$10.0$20.0$50.0$100.0facility $23professional $20

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
$18.20
Median
$22.91
Typical High
$61.66
Aetna
Setting
Professional
Modifier
Global
Typical Low
$12.88
Median
$20.42
Typical High
$34.67
BCBS
Setting
Facility
Modifier
Global
Typical Low
$20.89
Median
$33.88
Typical High
$63.10
BCBS
Setting
Professional
Modifier
Global
Typical Low
$14.13
Median
$18.62
Typical High
$38.02
Christus
Setting
Facility
Modifier
Global
Typical Low
$16.98
Median
$16.98
Typical High
$39.81
Cigna
Setting
Facility
Modifier
Global
Typical Low
$19.50
Median
$46.77
Typical High
$104.71
Cigna
Setting
Professional
Modifier
Global
Typical Low
$15.85
Median
$17.38
Typical High
$47.86
United
Setting
Facility
Modifier
Global
Typical Low
$7.08
Median
$16.98
Typical High
$20.89
United
Setting
Professional
Modifier
Global
Typical Low
$6.31
Median
$7.41
Typical High
$18.20

Where Louisiana sits

The same service costs 2.6 times more in South Dakota than in Maryland. Every bar is a state, most expensive first. Pick one to see its carriers and full range.

Louisiana $20.89 · 16th of 51
SD $33.88MD $12.88

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.