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Clotting-regulation Protein Blood Test, Protein S

Mississippi 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?

$27.54

Typical negotiated rate. In Mississippi, July 2026.

Insurers have agreed to pay about $27.54 for this service. The price depends on where it is billed: about $16.22 from a physician practice, and about $135 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$16.22$11.75 to $27.54
FacilityA hospital or hospital-owned outpatient department$135$27.54 to $174

How much rates vary

Facilitymedian $135 · 10th to 90th $15 to $229Professionalmedian $16 · 10th to 90th $10 to $31
$10$20$50$100$200$500facility $135professional $16

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
$16.22
Median
$154.88
Typical High
$338.84
Aetna
Setting
Professional
Modifier
Global
Typical Low
$11.75
Median
$17.78
Typical High
$30.90
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$7.59
Median
$7.59
Typical High
$7.59
BCBS
Setting
Facility
Modifier
Global
Typical Low
$27.54
Median
$27.54
Typical High
$27.54
BCBS
Setting
Professional
Modifier
Global
Typical Low
$23.44
Median
$23.44
Typical High
$23.44
Cigna
Setting
Facility
Modifier
Global
Typical Low
$10.47
Median
$16.98
Typical High
$30.90
Cigna
Setting
Professional
Modifier
Global
Typical Low
$7.08
Median
$16.22
Typical High
$34.67
United
Setting
Facility
Modifier
Global
Typical Low
$13.80
Median
$15.49
Typical High
$20.89
United
Setting
Professional
Modifier
Global
Typical Low
$6.46
Median
$9.12
Typical High
$27.54

Where Mississippi 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.

Mississippi· 10th of 51

$27.54

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.