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Clotting Protein Activity Test

Michigan 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 October 2026.

How much does Clotting Protein Activity Test cost?

$26.30

Typical negotiated rate. In Michigan, October 2026.

Insurers have agreed to pay about $26.30 for this service. The price depends on where it is billed: about $22.91 from a physician practice, and about $29.51 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 6 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$22.91$10.72 to $29.51
FacilityA hospital or hospital-owned outpatient department$29.51$28.84 to $37.15

How much rates vary

Facilitymedian $30 · 10th to 90th $23 to $54Professionalmedian $23 · 10th to 90th $7 to $32
$5$10$20$50$100facility $30professional $23

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
$29.51
Median
$29.51
Typical High
$45.71
Aetna
Setting
Professional
Modifier
None
Typical Low
$26.30
Median
$29.51
Typical High
$30.90
BCBS Michigan
Setting
Facility
Modifier
None
Typical Low
$22.91
Median
$32.36
Typical High
$57.54
BCBS Michigan
Setting
Professional
Modifier
None
Typical Low
$21.88
Median
$22.91
Typical High
$25.70
Cigna
Setting
Professional
Modifier
None
Typical Low
$14.45
Median
$18.62
Typical High
$44.67
Health Alliance Plan
Setting
Facility
Modifier
None
Typical Low
$28.18
Median
$29.51
Typical High
$53.70
Health Alliance Plan
Setting
Professional
Modifier
None
Typical Low
$10.72
Median
$16.60
Typical High
$32.36
Priority Health
Setting
Professional
Modifier
None
Typical Low
$14.45
Median
$30.90
Typical High
$37.15
United
Setting
Facility
Modifier
None
Typical Low
$18.62
Median
$27.54
Typical High
$37.15
United
Setting
Professional
Modifier
None
Typical Low
$4.90
Median
$6.92
Typical High
$33.88

Where Michigan sits

The same service costs 3.7 times more in Alaska than in Kansas. 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.

Michigan· 29th of 51

$26.30

AK $69.18KS $18.62

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.