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Thyroxine Binding Globulin Blood Test

Arizona 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 Arizona, July 2026.

Insurers have agreed to pay about $13.18 for this service. The price depends on where it is billed: about $11.75 from a physician practice, and about $30.20 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$11.75$10.00 to $11.75
FacilityA hospital or hospital-owned outpatient department$30.20$16.60 to $54.95

How much rates vary

Facilitymedian $30 · 10th to 90th $12 to $65Professionalmedian $12 · 10th to 90th $9 to $98
$10$20$50$100facility $30professional $12

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
$20.89
Median
$33.11
Typical High
$64.57
Aetna
Setting
Professional
Modifier
Global
Typical Low
$10.00
Median
$11.75
Typical High
$97.72
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$10.23
Median
$10.23
Typical High
$10.23
BCBS
Setting
Facility
Modifier
Global
Typical Low
$8.91
Median
$37.15
Typical High
$69.18
BCBS
Setting
Professional
Modifier
Global
Typical Low
$11.75
Median
$12.59
Typical High
$60.26
Cigna
Setting
Facility
Modifier
Global
Typical Low
$10.72
Median
$15.49
Typical High
$47.86
Cigna
Setting
Professional
Modifier
Global
Typical Low
$10.00
Median
$13.18
Typical High
$22.91
Medica
Setting
Facility
Modifier
Global
Typical Low
$11.75
Median
$13.49
Typical High
$100.00
Medica
Setting
Professional
Modifier
Global
Typical Low
$6.17
Median
$8.71
Typical High
$13.49
United
Setting
Facility
Modifier
Global
Typical Low
$10.23
Median
$14.79
Typical High
$18.62
United
Setting
Professional
Modifier
Global
Typical Low
$6.17
Median
$8.71
Typical High
$20.42

Where Arizona 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.

Arizona· 42nd 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.