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Chemistry Test For A Specific Substance

Rhode Island rates for HCPCS 84285

A laboratory chemistry test that measures how much of one particular substance is present in a sample sent to the lab. It is ordered when the amount of that substance is expected to answer a specific question about a person's health, and the result is read together with the rest of the picture.

Rates data updated October 2026.

How much does Chemistry Test For A Specific Substance cost?

$26.30

Typical negotiated rate. In Rhode Island, October 2026.

Insurers have agreed to pay about $26.30 for this service. The price depends on where it is billed: about $23.44 from a physician practice, and about $30.90 from a hospital or other facility.

Few insurers publish rates for this combination, so treat this figure as a rough guide.

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 4 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$23.44$16.22 to $35.48
FacilityA hospital or hospital-owned outpatient department$30.90$28.84 to $47.86

How much rates vary

Facilitymedian $31 · 10th to 90th $29 to $83Professionalmedian $23 · 10th to 90th $13 to $42
$5$10$20$50$100facility $31professional $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
Professional
Modifier
None
Typical Low
$21.38
Median
$24.55
Typical High
$24.55
BCBS Rhode Island
Setting
Facility
Modifier
None
Typical Low
$28.84
Median
$30.20
Typical High
$47.86
BCBS Rhode Island
Setting
Professional
Modifier
None
Typical Low
$14.13
Median
$19.05
Typical High
$46.77
Cigna
Setting
Facility
Modifier
None
Typical Low
$21.88
Median
$56.23
Typical High
$97.72
Cigna
Setting
Professional
Modifier
None
Typical Low
$16.98
Median
$28.84
Typical High
$36.31
United
Setting
Facility
Modifier
None
Typical Low
$30.20
Median
$30.20
Typical High
$30.20
United
Setting
Professional
Modifier
None
Typical Low
$3.16
Median
$17.38
Typical High
$41.69

Where Rhode Island sits

The same service costs 3.5 times more in Kansas 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.

Rhode Island· 23rd of 51

$26.30

KS $57.54AL $16.22

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.