go back

Western Blot Protein Test

Colorado 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 October 2026.

How much does Western Blot Protein Test cost?

$25.70

Typical negotiated rate. In Colorado, October 2026.

Insurers have agreed to pay about $25.70 for this service. The price depends on where it is billed: about $16.98 from a physician practice, and about $48.98 from a hospital or other facility.

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 7 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$16.98$11.75 to $22.39
FacilityA hospital or hospital-owned outpatient department$48.98$30.90 to $58.88

How much rates vary

Facilitymedian $49 · 10th to 90th $13 to $78Professionalmedian $17 · 10th to 90th $10 to $37
$10$20$50$100facility $49professional $17

Distribution of negotiated rates across all payers (price axis is log-scale). Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$16.98
Median
$35.48
Typical High
$79.43
Aetna
Setting
Professional
Modifier
None
Typical Low
$12.02
Median
$12.88
Typical High
$17.38
Anthem BCBS
Setting
Facility
Modifier
None
Typical Low
$17.78
Median
$51.29
Typical High
$77.62
Anthem BCBS
Setting
Professional
Modifier
None
Typical Low
$10.47
Median
$16.98
Typical High
$37.15
Cigna
Setting
Facility
Modifier
None
Typical Low
$10.96
Median
$20.42
Typical High
$52.48
Cigna
Setting
Professional
Modifier
None
Typical Low
$15.85
Median
$19.50
Typical High
$35.48
Denver HMP
Setting
Facility
Modifier
None
Typical Low
$13.18
Median
$19.50
Typical High
$33.88
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$13.49
Median
$24.55
Typical High
$66.07
Select Health
Setting
Facility
Modifier
None
Typical Low
$16.98
Median
$31.62
Typical High
$35.48
Select Health
Setting
Professional
Modifier
None
Typical Low
$12.02
Median
$12.02
Typical High
$16.98
United
Setting
Facility
Modifier
None
Typical Low
$20.42
Median
$20.42
Typical High
$20.42
United
Setting
Professional
Modifier
None
Typical Low
$7.08
Median
$7.59
Typical High
$12.59
2 more rates with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$6.46
Median
$6.46
Typical High
$8.51
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$2.51
Median
$2.57
Typical High
$3.47

Where Colorado sits

The same service costs 3.7 times more in Kansas than in New Jersey. 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.

Colorado· 10th of 51

$25.70

KS $48.98NJ $13.18

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.