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Clotting Protein Activity Test

Massachusetts 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?

$30.90

Typical negotiated rate. In Massachusetts, July 2026.

Insurers have agreed to pay about $30.90 for this service. The price depends on where it is billed: about $30.90 from a physician practice, and about $61.66 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 9 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$30.90$24.55 to $38.90
FacilityA hospital or hospital-owned outpatient department$61.66$42.66 to $89.13

How much rates vary

Facilitymedian $62 · 10th to 90th $23 to $132Professionalmedian $31 · 10th to 90th $21 to $79
$10.0$100.0$1.0K$10.0Kfacility $62professional $31

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
$21.88
Median
$69.18
Typical High
$199.53
Aetna
Setting
Professional
Modifier
Global
Typical Low
$20.89
Median
$23.99
Typical High
$102.33
AllWays Health Partners
Setting
Facility
Modifier
Global
Typical Low
$22.91
Median
$35.48
Typical High
$147.91
AllWays Health Partners
Setting
Professional
Modifier
Global
Typical Low
$16.22
Median
$30.90
Typical High
$75.86
BCBS
Setting
Facility
Modifier
Global
Typical Low
$48.98
Median
$61.66
Typical High
$97.72
BCBS
Setting
Professional
Modifier
Global
Typical Low
$28.84
Median
$28.84
Typical High
$30.20
Cigna
Setting
Facility
Modifier
Global
Typical Low
$21.38
Median
$41.69
Typical High
$64.57
Cigna
Setting
Professional
Modifier
Global
Typical Low
$17.78
Median
$37.15
Typical High
$79.43
Fallon Health
Setting
Facility
Modifier
Global
Typical Low
$26.30
Median
$177.83
Typical High
$7,079.46
Fallon Health
Setting
Professional
Modifier
Global
Typical Low
$44.67
Median
$44.67
Typical High
$52.48
Harvard Pilgrim
Setting
Professional
Modifier
Global
Typical Low
$30.90
Median
$30.90
Typical High
$70.79
Health New England
Setting
Facility
Modifier
Global
Typical Low
$21.38
Median
$33.11
Typical High
$107.15
Mass General Brigham
Setting
Facility
Modifier
Global
Typical Low
$22.91
Median
$35.48
Typical High
$147.91
Mass General Brigham
Setting
Professional
Modifier
Global
Typical Low
$16.22
Median
$30.90
Typical High
$75.86
United
Setting
Facility
Modifier
Global
Typical Low
$15.49
Median
$30.20
Typical High
$37.15
United
Setting
Professional
Modifier
Global
Typical Low
$13.80
Median
$28.84
Typical High
$75.86

Where Massachusetts 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.

Massachusetts $30.90 · 28th 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.