go back

Blood Test Measuring Clot Formation Time

Maryland rates for HCPCS 85635

This blood test measures how long it takes a blood sample to clot after a specific clot-triggering substance is added to the sample. It's used to help evaluate bleeding or clotting problems by focusing on a particular step in the clotting process. It's a simple blood draw, often ordered alongside other clotting tests.

Rates data updated July 2026.

How much does Blood Test Measuring Clot Formation Time cost?

$7.41

Typical negotiated rate. In Maryland, July 2026.

Insurers have agreed to pay about $7.41 for this service. The price depends on where it is billed: about $7.94 from a physician practice, and about $7.24 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 6 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$7.94$7.24 to $12.02
FacilityA hospital or hospital-owned outpatient department$7.24$5.37 to $72.44

How much rates vary

Facilitymedian $7 · 10th to 90th $5 to $72Professionalmedian $8 · 10th to 90th $6 to $38
$5.0$10.0$20.0$50.0facility $7professional $8

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
$5.37
Median
$7.24
Typical High
$72.44
Aetna
Setting
Professional
Modifier
Global
Typical Low
$6.46
Median
$8.13
Typical High
$38.02
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$2.45
Median
$7.94
Typical High
$9.33
Cigna
Setting
Facility
Modifier
Global
Typical Low
$5.25
Median
$6.76
Typical High
$12.88
Cigna
Setting
Professional
Modifier
Global
Typical Low
$5.37
Median
$9.77
Typical High
$23.99
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$9.77
Median
$11.75
Typical High
$19.05
United
Setting
Facility
Modifier
Global
Typical Low
$4.17
Median
$6.46
Typical High
$22.39
United
Setting
Professional
Modifier
Global
Typical Low
$4.17
Median
$5.75
Typical High
$10.47
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$3.80
Median
$6.76
Typical High
$14.79

Where Maryland sits

The same service costs 2.4 times more in Hawaii than in Washington, DC. Every bar is a state, most expensive first. Pick one to see its carriers and full range.

Maryland $7.41 · 50th of 51
HI $17.78DC $7.41

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.