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Thyroxine Binding Globulin Blood Test

Florida 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?

$13.18

Typical negotiated rate. In Florida, July 2026.

Insurers have agreed to pay about $13.18 for this service. The price depends on where it is billed: about $12.88 from a physician practice, and about $27.54 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 8 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$12.88$12.30 to $13.80
FacilityA hospital or hospital-owned outpatient department$27.54$13.18 to $44.67

How much rates vary

Facilitymedian $28 · 10th to 90th $9 to $79Professionalmedian $13 · 10th to 90th $11 to $17
$1$2$5$10$20$50$100facility $28professional $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
$9.33
Median
$30.20
Typical High
$79.43
Aetna
Setting
Professional
Modifier
Global
Typical Low
$12.02
Median
$12.88
Typical High
$16.60
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$8.91
Median
$8.91
Typical High
$9.12
AvMed
Setting
Facility
Modifier
Global
Typical Low
$13.18
Median
$14.79
Typical High
$17.38
AvMed
Setting
Professional
Modifier
Global
Typical Low
$12.30
Median
$14.79
Typical High
$20.89
Cigna
Setting
Facility
Modifier
Global
Typical Low
$10.23
Median
$18.20
Typical High
$42.66
Cigna
Setting
Professional
Modifier
Global
Typical Low
$7.41
Median
$15.49
Typical High
$29.51
Florida Blue
Setting
Facility
Modifier
Global
Typical Low
$15.14
Median
$27.54
Typical High
$114.82
Florida Blue
Setting
Professional
Modifier
Global
Typical Low
$8.91
Median
$8.91
Typical High
$20.42
Molina
Setting
Professional
Modifier
Global
Typical Low
$1.78
Median
$7.08
Typical High
$8.91
United
Setting
Facility
Modifier
Global
Typical Low
$6.61
Median
$13.18
Typical High
$18.20
United
Setting
Professional
Modifier
Global
Typical Low
$6.17
Median
$8.71
Typical High
$20.89
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$8.91
Median
$8.91
Typical High
$14.79

Where Florida 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.

Florida· 44th of 51

$13.18

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.