go back

Western Blot Protein Test

Washington, DC 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?

$12.88

Typical negotiated rate. In Washington, DC, July 2026.

Insurers have agreed to pay about $12.88 for this service. The price depends on where it is billed: about $12.88 from a physician practice, and about $28.84 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$12.88$12.88 to $12.88
FacilityA hospital or hospital-owned outpatient department$28.84$12.88 to $64.57

How much rates vary

Facilitymedian $29 · 10th to 90th $13 to $117Professionalmedian $13 · 10th to 90th $13 to $59
$5$10$20$50$100facility $29professional $13

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
$12.88
Median
$63.10
Typical High
$117.49
Aetna
Setting
Professional
Modifier
Global
Typical Low
$12.88
Median
$12.88
Typical High
$12.88
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$48.98
Median
$87.10
Typical High
$190.55
Cigna
Setting
Facility
Modifier
Global
Typical Low
$27.54
Median
$28.84
Typical High
$64.57
Cigna
Setting
Professional
Modifier
Global
Typical Low
$0.39
Median
$22.91
Typical High
$263.03
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$33.11
Median
$33.11
Typical High
$34.67
United
Setting
Facility
Modifier
Global
Typical Low
$10.00
Median
$20.42
Typical High
$112.20
United
Setting
Professional
Modifier
Global
Typical Low
$7.08
Median
$10.23
Typical High
$16.22

Where Washington, DC sits

The same service costs 2.6 times more in South Dakota 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, DC· 50th of 51

$12.88

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.