go back

Urine Trimethylamine And TMAO Test

Maine rates for HCPCS 0256U

Measures two related chemicals in urine — trimethylamine and its oxidized form, trimethylamine N-oxide — and reports them together as a paired profile. Trimethylamine is produced when gut bacteria break down certain foods, and the body normally converts it into trimethylamine N-oxide.

Rates data updated July 2026.

How much does Urine Trimethylamine And TMAO Test cost?

$158

Typical negotiated rate. In Maine, July 2026.

Insurers have agreed to pay about $158 for this service. The price depends on where it is billed: about $129 from a physician practice, and about $158 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$129$105 to $158
FacilityA hospital or hospital-owned outpatient department$158$158 to $363

How much rates vary

Facilitymedian $158 · 10th to 90th $158 to $398Professionalmedian $129 · 10th to 90th $68 to $191
$10$20$50$100$200$500facility $158professional $129

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
$158.49
Median
$158.49
Typical High
$398.11
Aetna
Setting
Professional
Modifier
Global
Typical Low
$120.23
Median
$128.82
Typical High
$128.82
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$9.55
Median
$72.44
Typical High
$104.71
Cigna
Setting
Facility
Modifier
Global
Typical Low
$363.08
Median
$363.08
Typical High
$363.08
Cigna
Setting
Professional
Modifier
Global
Typical Low
$181.97
Median
$181.97
Typical High
$229.09
Harvard Pilgrim
Setting
Professional
Modifier
Global
Typical Low
$95.50
Median
$158.49
Typical High
$194.98
Martin's Point
Setting
Facility
Modifier
Global
Typical Low
$158.49
Median
$158.49
Typical High
$398.11
Martin's Point
Setting
Professional
Modifier
Global
Typical Low
$120.23
Median
$128.82
Typical High
$158.49
United
Setting
Professional
Modifier
Global
Typical Low
$95.50
Median
$158.49
Typical High
$234.42

Where Maine sits

The same service costs 3.2 times more in South Dakota than in Kentucky. 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· 15th of 51

$158

SD $309KY $95.50

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.