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Thyroxine Binding Globulin Blood Test

Maine 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?

$14.79

Typical negotiated rate. In Maine, July 2026.

Insurers have agreed to pay about $14.79 for this service. The price depends on where it is billed: about $14.79 from a physician practice, and about $23.99 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$14.79$11.22 to $14.79
FacilityA hospital or hospital-owned outpatient department$23.99$14.79 to $66.07

How much rates vary

Facilitymedian $24 · 10th to 90th $15 to $138Professionalmedian $15 · 10th to 90th $8 to $19
$10$20$50$100facility $24professional $15

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
$14.79
Median
$23.99
Typical High
$66.07
Aetna
Setting
Professional
Modifier
Global
Typical Low
$11.22
Median
$12.02
Typical High
$14.79
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$16.98
Median
$138.04
Typical High
$147.91
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$5.89
Median
$8.51
Typical High
$19.05
Cigna
Setting
Facility
Modifier
Global
Typical Low
$17.38
Median
$20.42
Typical High
$33.88
Cigna
Setting
Professional
Modifier
Global
Typical Low
$12.02
Median
$15.14
Typical High
$21.38
Harvard Pilgrim
Setting
Professional
Modifier
Global
Typical Low
$12.02
Median
$14.79
Typical High
$17.78
Martin's Point
Setting
Facility
Modifier
Global
Typical Low
$14.79
Median
$14.79
Typical High
$66.07
Martin's Point
Setting
Professional
Modifier
Global
Typical Low
$11.22
Median
$14.79
Typical High
$36.31
United
Setting
Facility
Modifier
Global
Typical Low
$51.29
Median
$51.29
Typical High
$51.29
United
Setting
Professional
Modifier
Global
Typical Low
$8.91
Median
$14.79
Typical High
$30.20

Where Maine 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.

Maine· 35th of 51

$14.79

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.