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Group A Strep Antigen Test, Laboratory Immunoassay

North Dakota 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?

$21.88

Typical negotiated rate. In North Dakota, October 2026.

Insurers have agreed to pay about $21.88 for this service. The price depends on where it is billed: about $23.44 from a physician practice, and about $11.75 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 5 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$23.44$16.98 to $28.84
FacilityA hospital or hospital-owned outpatient department$11.75$11.75 to $34.67

How much rates vary

Facilitymedian $12 · 10th to 90th $12 to $83Professionalmedian $23 · 10th to 90th $8 to $34
$10$20$50$100facility $12professional $23

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

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$11.75
Median
$11.75
Typical High
$34.67
Aetna
Setting
Professional
Modifier
None
Typical Low
$11.22
Median
$12.88
Typical High
$33.88
BCBS North Dakota
Setting
Facility
Modifier
None
Typical Low
$70.79
Median
$72.44
Typical High
$93.33
BCBS North Dakota
Setting
Professional
Modifier
None
Typical Low
$21.88
Median
$28.84
Typical High
$33.88
BCBS North Dakota
Setting
Professional
Modifier
22 · Increased work
Typical Low
$26.30
Median
$34.67
Typical High
$40.74
BCBS North Dakota
Setting
Professional
Modifier
55 · Aftercare only
Typical Low
$4.37
Median
$5.75
Typical High
$6.76
Cigna
Setting
Professional
Modifier
None
Typical Low
$19.50
Median
$19.50
Typical High
$30.20
Medica
Setting
Facility
Modifier
None
Typical Low
$11.75
Median
$16.98
Typical High
$83.18
Medica
Setting
Professional
Modifier
None
Typical Low
$7.08
Median
$19.50
Typical High
$23.44
United
Setting
Professional
Modifier
None
Typical Low
$7.08
Median
$16.98
Typical High
$20.42

Where North Dakota 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.

North Dakota· 9th of 51

$21.88

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.