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Group A Strep Antigen Test, Laboratory Immunoassay

Washington, DC 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?

$12.59

Typical negotiated rate. In Washington, DC, July 2026.

Insurers have agreed to pay about $12.59 for this service. The price depends on where it is billed: about $12.59 from a physician practice, and about $27.54 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 5 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$12.59 to $12.59
FacilityA hospital or hospital-owned outpatient department$27.54$12.59 to $53.70

How much rates vary

Facilitymedian $28 · 10th to 90th $13 to $76Professionalmedian $13 · 10th to 90th $13 to $38
$10$20$50$100facility $28professional $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
$40.74
Typical High
$75.86
Aetna
Setting
Professional
Modifier
Global
Typical Low
$12.59
Median
$12.59
Typical High
$12.59
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$31.62
Median
$56.23
Typical High
$134.90
Cigna
Setting
Facility
Modifier
Global
Typical Low
$27.54
Median
$28.18
Typical High
$63.10
Cigna
Setting
Professional
Modifier
Global
Typical Low
$9.12
Median
$20.42
Typical High
$131.83
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$29.51
Median
$29.51
Typical High
$33.88
United
Setting
Facility
Modifier
Global
Typical Low
$7.08
Median
$19.95
Typical High
$19.95
United
Setting
Professional
Modifier
Global
Typical Low
$6.76
Median
$9.55
Typical High
$18.62

Where Washington, DC 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.

Washington, DC· 49th of 51

$12.59

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.