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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 October 2026.

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

$13.49

Typical negotiated rate. In Maine, October 2026.

Insurers have agreed to pay about $13.49 for this service. The price depends on where it is billed: about $10.00 from a physician practice, and about $20.89 from a hospital or other facility.

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.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$10.00$8.51 to $13.80
FacilityA hospital or hospital-owned outpatient department$20.89$16.22 to $24.55

How much rates vary

Facilitymedian $21 · 10th to 90th $16 to $98Professionalmedian $10 · 10th to 90th $7 to $22
$10$20$50$100facility $21professional $10

Distribution of negotiated rates across all payers (price axis is log-scale). Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$13.49
Median
$13.49
Typical High
$13.49
Aetna
Setting
Professional
Modifier
None
Typical Low
$12.30
Median
$13.49
Typical High
$24.55
Anthem BCBS
Setting
Facility
Modifier
None
Typical Low
$16.22
Median
$22.39
Typical High
$102.33
Anthem BCBS
Setting
Professional
Modifier
None
Typical Low
$5.75
Median
$8.13
Typical High
$10.96
Cigna
Setting
Facility
Modifier
None
Typical Low
$14.13
Median
$16.98
Typical High
$38.02
Cigna
Setting
Professional
Modifier
None
Typical Low
$13.80
Median
$16.98
Typical High
$17.38
Harvard Pilgrim
Setting
Professional
Modifier
None
Typical Low
$9.33
Median
$10.00
Typical High
$27.54
Martin's Point
Setting
Professional
Modifier
None
Typical Low
$12.30
Median
$13.49
Typical High
$24.55
United
Setting
Professional
Modifier
None
Typical Low
$9.33
Median
$10.00
Typical High
$27.54

Where Maine sits

The same service costs 3.6 times more in Alaska than in Alabama. 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· 40th of 51

$13.49

AK $38.02AL $10.47

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.