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Urine Trimethylamine And TMAO Test

Rhode Island 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?

$117

Typical negotiated rate. In Rhode Island, July 2026.

Insurers have agreed to pay about $117 for this service. The price depends on where it is billed: about $117 from a physician practice, and about $724 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 4 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$117$117 to $117
FacilityA hospital or hospital-owned outpatient department$724$457 to $724

How much rates vary

Facilitymedian $724 · 10th to 90th $191 to $724Professionalmedian $117 · 10th to 90th $91 to $182
$100$200$500facility $724professional $117

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. Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$457.09
Median
$724.44
Typical High
$724.44
Aetna
Setting
Professional
Modifier
Global
Typical Low
$117.49
Median
$117.49
Typical High
$117.49
BCBS
Setting
Facility
Modifier
Global
Typical Low
$190.55
Median
$190.55
Typical High
$190.55
Cigna
Setting
Professional
Modifier
Global
Typical Low
$181.97
Median
$181.97
Typical High
$229.09
United
Setting
Facility
Modifier
Global
Typical Low
$190.55
Median
$190.55
Typical High
$223.87
United
Setting
Professional
Modifier
Global
Typical Low
$79.43
Median
$95.50
Typical High
$229.09

Where Rhode Island 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.

Rhode Island· 45th of 51

$117

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.