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Giardia Stool Antigen Test

Louisiana rates for HCPCS 87329

This laboratory test checks a stool sample for antigens from Giardia lamblia, a parasite that can cause diarrhea and digestive symptoms after being picked up from contaminated water or food. It offers a faster and often more sensitive way to detect this parasite than examining the stool under a microscope.

Rates data updated July 2026.

How much does Giardia Stool Antigen Test cost?

$14.45

Typical negotiated rate. In Louisiana, July 2026.

Insurers have agreed to pay about $14.45 for this service. The price depends on where it is billed: about $12.59 from a physician practice, and about $20.42 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$12.59$10.23 to $14.45
FacilityA hospital or hospital-owned outpatient department$20.42$14.45 to $39.81

How much rates vary

Facilitymedian $20 · 10th to 90th $13 to $68Professionalmedian $13 · 10th to 90th $8 to $16
$10$20$50$100$200facility $20professional $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
$12.59
Median
$20.42
Typical High
$74.13
Aetna
Setting
Professional
Modifier
Global
Typical Low
$9.12
Median
$12.59
Typical High
$16.22
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$6.03
Median
$6.03
Typical High
$6.03
BCBS
Setting
Facility
Modifier
Global
Typical Low
$14.79
Median
$23.99
Typical High
$44.67
BCBS
Setting
Professional
Modifier
Global
Typical Low
$10.00
Median
$13.18
Typical High
$23.99
Christus
Setting
Facility
Modifier
Global
Typical Low
$11.75
Median
$11.75
Typical High
$39.81
Cigna
Setting
Facility
Modifier
Global
Typical Low
$13.18
Median
$33.11
Typical High
$74.13
Cigna
Setting
Professional
Modifier
Global
Typical Low
$5.62
Median
$7.94
Typical High
$13.49
United
Setting
Facility
Modifier
Global
Typical Low
$5.01
Median
$12.02
Typical High
$14.79
United
Setting
Professional
Modifier
Global
Typical Low
$5.01
Median
$7.08
Typical High
$16.60

Where Louisiana sits

The same service costs 7.4 times more in West Virginia 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.

Louisiana· 21st of 51

$14.45

WV $66.07DC $8.91

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.