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Thyroxine Binding Globulin Blood Test

South Dakota rates for HCPCS 84442

A blood test that measures the level of thyroxine binding globulin, a protein made by the liver that carries thyroid hormone through the bloodstream. It helps doctors interpret thyroid hormone levels correctly, since changes in this carrier protein — from pregnancy, liver disease, certain medications, or inherited conditions — can make total thyroid hormone results look abnormal even when thyroid function itself is normal. A small blood sample is all that's needed.

Rates data updated July 2026.

How much does Thyroxine Binding Globulin Blood Test cost?

$24.55

Typical negotiated rate. In South Dakota, July 2026.

Insurers have agreed to pay about $24.55 for this service. The price depends on where it is billed: about $21.38 from a physician practice, and about $28.18 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 7 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$21.38$11.48 to $34.67
FacilityA hospital or hospital-owned outpatient department$28.18$22.91 to $28.18

How much rates vary

Facilitymedian $28 · 10th to 90th $17 to $28Professionalmedian $21 · 10th to 90th $10 to $39
$10$20$50$100facility $28professional $21

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
$10.23
Median
$16.98
Typical High
$16.98
Aetna
Setting
Professional
Modifier
Global
Typical Low
$10.00
Median
$11.48
Typical High
$13.80
Avera
Setting
Facility
Modifier
Global
Typical Low
$15.14
Median
$15.14
Typical High
$22.39
Cigna
Setting
Facility
Modifier
Global
Typical Low
$28.18
Median
$28.18
Typical High
$28.18
Cigna
Setting
Professional
Modifier
Global
Typical Low
$16.98
Median
$28.18
Typical High
$35.48
Medica
Setting
Facility
Modifier
Global
Typical Low
$13.80
Median
$22.91
Typical High
$57.54
Medica
Setting
Professional
Modifier
Global
Typical Low
$6.46
Median
$8.91
Typical High
$19.05
Sanford Health Plan
Setting
Professional
Modifier
Global
Typical Low
$20.89
Median
$34.67
Typical High
$40.74
United
Setting
Facility
Modifier
Global
Typical Low
$17.78
Median
$17.78
Typical High
$17.78
United
Setting
Professional
Modifier
Global
Typical Low
$6.17
Median
$13.18
Typical High
$20.89
Wellmark
Setting
Professional
Modifier
Global
Typical Low
$14.79
Median
$14.79
Typical High
$14.79

Where South Dakota sits

The same service costs 2.6 times more in Nebraska than in Washington, DC. 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.

South Dakota· 5th of 51

$24.55

NE $28.18DC $10.96

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.