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Group A Strep Antigen Test, Laboratory Immunoassay

Maine 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?

$16.98

Typical negotiated rate. In Maine, July 2026.

Insurers have agreed to pay about $16.98 for this service. The price depends on where it is billed: about $13.49 from a physician practice, and about $41.69 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$13.49$11.22 to $16.98
FacilityA hospital or hospital-owned outpatient department$41.69$16.98 to $75.86

How much rates vary

Facilitymedian $42 · 10th to 90th $17 to $107Professionalmedian $13 · 10th to 90th $9 to $20
$10$20$50$100facility $42professional $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
$16.98
Median
$41.69
Typical High
$75.86
Aetna
Setting
Professional
Modifier
Global
Typical Low
$10.96
Median
$13.49
Typical High
$16.98
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$19.50
Median
$107.15
Typical High
$114.82
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$6.76
Median
$9.55
Typical High
$14.79
Cigna
Setting
Facility
Modifier
Global
Typical Low
$14.13
Median
$16.98
Typical High
$38.02
Cigna
Setting
Professional
Modifier
Global
Typical Low
$13.80
Median
$16.98
Typical High
$19.50
Harvard Pilgrim
Setting
Professional
Modifier
Global
Typical Low
$10.00
Median
$16.98
Typical High
$20.42
Martin's Point
Setting
Facility
Modifier
Global
Typical Low
$16.98
Median
$36.31
Typical High
$75.86
Martin's Point
Setting
Professional
Modifier
Global
Typical Low
$11.22
Median
$13.49
Typical High
$23.44
United
Setting
Facility
Modifier
Global
Typical Low
$14.79
Median
$14.79
Typical High
$14.79
United
Setting
Professional
Modifier
Global
Typical Low
$9.33
Median
$16.98
Typical High
$25.70

Where Maine 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.

Maine· 29th of 51

$16.98

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.