go back

Protein S Level Test

Washington rates for HCPCS 85305

This blood test measures the total amount of a natural protein the body uses to help regulate blood clotting. It is used to help investigate an unexplained blood clot or a family history of clotting problems.

Rates data updated July 2026.

How much does Protein S Level Test cost?

$12.59

Typical negotiated rate. In Washington, July 2026.

Insurers have agreed to pay about $12.59 for this service. The price depends on where it is billed: about $10.47 from a physician practice, and about $23.44 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$10.47$10.23 to $11.48
FacilityA hospital or hospital-owned outpatient department$23.44$13.80 to $42.66

How much rates vary

Facilitymedian $23 · 10th to 90th $11 to $76Professionalmedian $10 · 10th to 90th $9 to $19
$5$10$20$50$100$200facility $23professional $10

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
$11.48
Median
$35.48
Typical High
$162.18
Aetna
Setting
Professional
Modifier
Global
Typical Low
$10.00
Median
$10.96
Typical High
$54.95
Asuris Northwest Health
Setting
Facility
Modifier
Global
Typical Low
$11.48
Median
$14.45
Typical High
$31.62
Asuris Northwest Health
Setting
Professional
Modifier
Global
Typical Low
$8.71
Median
$10.47
Typical High
$11.75
Cigna
Setting
Facility
Modifier
Global
Typical Low
$12.02
Median
$23.99
Typical High
$37.15
Cigna
Setting
Professional
Modifier
Global
Typical Low
$7.08
Median
$12.02
Typical High
$18.20
Molina
Setting
Professional
Modifier
Global
Typical Low
$7.41
Median
$10.23
Typical High
$64.57
Pacific Source
Setting
Facility
Modifier
Global
Typical Low
$11.48
Median
$11.48
Typical High
$23.44
Pacific Source
Setting
Professional
Modifier
Global
Typical Low
$11.48
Median
$11.48
Typical High
$14.45
Premera BCBS
Setting
Facility
Modifier
Global
Typical Low
$11.48
Median
$20.42
Typical High
$31.62
Premera BCBS
Setting
Professional
Modifier
Global
Typical Low
$10.47
Median
$10.47
Typical High
$13.80
Regence BlueShield
Setting
Facility
Modifier
Global
Typical Low
$11.48
Median
$17.38
Typical High
$31.62
Regence BlueShield
Setting
Professional
Modifier
Global
Typical Low
$8.71
Median
$10.47
Typical High
$11.48
United
Setting
Facility
Modifier
Global
Typical Low
$10.96
Median
$13.80
Typical High
$13.80
United
Setting
Professional
Modifier
Global
Typical Low
$4.90
Median
$6.61
Typical High
$14.79
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$5.25
Median
$6.03
Typical High
$20.89

Where Washington sits

The same service costs 3.0 times more in Pennsylvania than in Tennessee. 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.

Washington· 26th of 51

$12.59

PA $27.54TN $9.33

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.