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Clotting-regulation Protein Blood Test, Protein S

North Carolina rates for HCPCS 85306

This is a blood test that measures protein S, one of the body's natural proteins that helps keep blood clotting properly balanced. It's typically ordered as part of a work-up after an unexplained or recurrent blood clot, to check whether a deficiency in this protein might be a contributing factor. It's usually run together with a small set of related clot-regulation tests.

Rates data updated July 2026.

How much does Clotting-regulation Protein Blood Test, Protein S cost?

$22.91

Typical negotiated rate. In North Carolina, July 2026.

Insurers have agreed to pay about $22.91 for this service. The price depends on where it is billed: about $13.80 from a physician practice, and about $69.18 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 8 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$13.80$12.30 to $18.62
FacilityA hospital or hospital-owned outpatient department$69.18$23.44 to $162

How much rates vary

Facilitymedian $69 · 10th to 90th $13 to $219Professionalmedian $14 · 10th to 90th $11 to $20
$10$20$50$100$200$500facility $69professional $14

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
$13.18
Median
$72.44
Typical High
$218.78
Aetna
Setting
Professional
Modifier
Global
Typical Low
$12.30
Median
$13.80
Typical High
$20.42
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$10.23
Median
$10.72
Typical High
$10.72
BCBS
Setting
Facility
Modifier
Global
Typical Low
$25.70
Median
$34.67
Typical High
$53.70
BCBS
Setting
Professional
Modifier
Global
Typical Low
$9.12
Median
$12.88
Typical High
$32.36
Cigna
Setting
Facility
Modifier
Global
Typical Low
$10.72
Median
$29.51
Typical High
$69.18
Cigna
Setting
Professional
Modifier
Global
Typical Low
$7.94
Median
$10.47
Typical High
$23.44
Medcost
Setting
Professional
Modifier
Global
Typical Low
$12.59
Median
$29.51
Typical High
$131.83
Medcost
Setting
Facility
Modifier
Global
Typical Low
$12.30
Median
$13.80
Typical High
$28.18
Medcost
Setting
Professional
Modifier
Global
Typical Low
$12.30
Median
$48.98
Typical High
$54.95
Oscar Health
Setting
Facility
Modifier
Global
Typical Low
$204.17
Median
$204.17
Typical High
$204.17
United
Setting
Facility
Modifier
Global
Typical Low
$8.13
Median
$19.95
Typical High
$26.92
United
Setting
Professional
Modifier
Global
Typical Low
$7.59
Median
$10.00
Typical High
$21.38
Wellcare
Setting
Facility
Modifier
Global
Typical Low
$208.93
Median
$208.93
Typical High
$208.93

Where North Carolina sits

The same service costs 3.6 times more in West Virginia than in Kentucky. 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.

North Carolina· 17th of 51

$22.91

WV $50.12KY $13.80

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.