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Clotting Protein Activity Test

Maryland 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 Maryland, 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 $145 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 6 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$20.42 to $28.84
FacilityA hospital or hospital-owned outpatient department$145$16.60 to $214

How much rates vary

Facilitymedian $145 · 10th to 90th $13 to $214Professionalmedian $23 · 10th to 90th $15 to $41
$10$20$50$100$200facility $145professional $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. Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$144.54
Median
$213.80
Typical High
$223.87
Aetna
Setting
Professional
Modifier
Global
Typical Low
$20.42
Median
$22.91
Typical High
$38.02
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$7.59
Median
$22.39
Typical High
$28.18
Cigna
Setting
Facility
Modifier
Global
Typical Low
$15.85
Median
$20.42
Typical High
$39.81
Cigna
Setting
Professional
Modifier
Global
Typical Low
$16.22
Median
$29.51
Typical High
$75.86
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$29.51
Median
$35.48
Typical High
$46.77
United
Setting
Facility
Modifier
Global
Typical Low
$8.32
Median
$12.88
Typical High
$23.44
United
Setting
Professional
Modifier
Global
Typical Low
$13.18
Median
$14.45
Typical High
$28.84
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$12.02
Median
$21.38
Typical High
$46.77

Where Maryland sits

The same service costs 2.8 times more in South Dakota than in Florida. 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.

Maryland· 49th of 51

$22.91

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.