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Clotting-regulation Protein Blood Test, Protein S

Delaware 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?

$18.20

Typical negotiated rate. In Delaware, July 2026.

Insurers have agreed to pay about $18.20 for this service. The price depends on where it is billed: about $12.59 from a physician practice, and about $269 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 4 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$12.59$12.02 to $45.71
FacilityA hospital or hospital-owned outpatient department$269$15.85 to $295

How much rates vary

Facilitymedian $269 · 10th to 90th $13 to $331Professionalmedian $13 · 10th to 90th $12 to $46
$10$20$50$100$200facility $269professional $13

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
$12.59
Median
$269.15
Typical High
$331.13
Aetna
Setting
Professional
Modifier
Global
Typical Low
$12.02
Median
$12.59
Typical High
$45.71
Cigna
Setting
Facility
Modifier
Global
Typical Low
$10.00
Median
$10.00
Typical High
$10.00
Cigna
Setting
Professional
Modifier
Global
Typical Low
$9.33
Median
$10.96
Typical High
$28.18
Highmark BCBS
Setting
Facility
Modifier
Global
Typical Low
$15.49
Median
$74.13
Typical High
$102.33
United
Setting
Professional
Modifier
Global
Typical Low
$7.59
Median
$12.88
Typical High
$21.38

Where Delaware 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.

Delaware· 28th of 51

$18.20

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.