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Clotting Protein Activity Test

Washington, DC rates for HCPCS 85397

A blood test that measures how well a particular protein involved in forming or dissolving clots is actually working, rather than simply how much of it is present. It is used when a specific measurement is needed that no standard named test covers.

Rates data updated July 2026.

How much does Clotting Protein Activity Test cost?

$22.91

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

Insurers have agreed to pay about $22.91 for this service. The price depends on where it is billed: about $22.91 from a physician practice, and about $70.79 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$22.91$22.91 to $22.91
FacilityA hospital or hospital-owned outpatient department$70.79$50.12 to $158

How much rates vary

Facilitymedian $71 · 10th to 90th $23 to $191Professionalmedian $23 · 10th to 90th $23 to $81
$10.0$20.0$50.0$100.0$200.0facility $71professional $23

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
$22.91
Median
$70.79
Typical High
$190.55
Aetna
Setting
Professional
Modifier
Global
Typical Low
$22.91
Median
$22.91
Typical High
$22.91
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$66.07
Median
$117.49
Typical High
$257.04
Cigna
Setting
Facility
Modifier
Global
Typical Low
$50.12
Median
$52.48
Typical High
$117.49
Cigna
Setting
Professional
Modifier
Global
Typical Low
$16.98
Median
$35.48
Typical High
$239.88
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$53.70
Median
$53.70
Typical High
$63.10
United
Setting
Facility
Modifier
Global
Typical Low
$14.13
Median
$37.15
Typical High
$89.13
United
Setting
Professional
Modifier
Global
Typical Low
$12.88
Median
$14.45
Typical High
$38.90

Where Washington, DC sits

The same service costs 2.8 times more in South Dakota than in Florida. Every bar is a state, most expensive first. Pick one to see its carriers and full range.

Washington, DC $22.91 · 48th of 51
SD $58.88FL $21.38

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.