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Group A Strep Antigen Test, Laboratory Immunoassay

Louisiana rates for HCPCS 87430

Checks a throat swab for proteins from group A streptococcus, the bacterium behind strep throat, using an instrument-read laboratory immunoassay. It is the laboratory version of the test rather than the strip read by eye during an office visit. Results generally come back the same day, so a decision about antibiotics need not wait for a culture to grow.

Rates data updated July 2026.

How much does Group A Strep Antigen Test, Laboratory Immunoassay cost?

$20.42

Typical negotiated rate. In Louisiana, July 2026.

Insurers have agreed to pay about $20.42 for this service. The price depends on where it is billed: about $19.95 from a physician practice, and about $22.91 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$19.95$16.98 to $21.38
FacilityA hospital or hospital-owned outpatient department$22.91$20.42 to $43.65

How much rates vary

Facilitymedian $23 · 10th to 90th $17 to $62Professionalmedian $20 · 10th to 90th $11 to $30
$10$20$50$100facility $23professional $20

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
$17.78
Median
$22.91
Typical High
$61.66
Aetna
Setting
Professional
Modifier
Global
Typical Low
$12.88
Median
$19.95
Typical High
$30.20
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$16.98
Median
$16.98
Typical High
$16.98
BCBS
Setting
Facility
Modifier
Global
Typical Low
$17.38
Median
$30.90
Typical High
$47.86
BCBS
Setting
Professional
Modifier
Global
Typical Low
$12.59
Median
$18.62
Typical High
$23.44
Christus
Setting
Facility
Modifier
Global
Typical Low
$39.81
Median
$63.10
Typical High
$63.10
Cigna
Setting
Facility
Modifier
Global
Typical Low
$8.91
Median
$42.66
Typical High
$79.43
Cigna
Setting
Professional
Modifier
Global
Typical Low
$7.41
Median
$7.94
Typical High
$19.50
United
Setting
Facility
Modifier
Global
Typical Low
$7.08
Median
$15.14
Typical High
$16.98
United
Setting
Professional
Modifier
Global
Typical Low
$6.92
Median
$8.13
Typical High
$17.78

Where Louisiana sits

The same service costs 4.5 times more in Wyoming than in Connecticut. 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· 13th of 51

$20.42

WY $48.98CT $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.