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Blood Phosphorus (Phosphate) Test

Rhode Island rates for HCPCS 84100

Measures the amount of phosphate, a mineral the body uses for bone strength, energy production and cell function, in a blood sample. Levels drift when the kidneys are not clearing phosphate properly, when the parathyroid glands are over- or under-active, or when vitamin D is out of balance, so it is usually read alongside calcium. Measuring phosphate in a urine sample is a separate test.

Rates data updated July 2026.

How much does Blood Phosphorus (Phosphate) Test cost?

$6.46

Typical negotiated rate. In Rhode Island, July 2026.

Insurers have agreed to pay about $6.46 for this service. The price depends on where it is billed: about $4.90 from a physician practice, and about $30.90 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 4 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$4.90$3.55 to $5.62
FacilityA hospital or hospital-owned outpatient department$30.90$14.13 to $43.65

How much rates vary

Facilitymedian $31 · 10th to 90th $6 to $74Professionalmedian $5 · 10th to 90th $3 to $7
$2$5$10$20$50$100facility $31professional $5

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
$14.13
Median
$38.02
Typical High
$79.43
Aetna
Setting
Professional
Modifier
Global
Typical Low
$3.63
Median
$4.90
Typical High
$5.62
BCBS
Setting
Facility
Modifier
Global
Typical Low
$5.50
Median
$5.75
Typical High
$9.55
BCBS
Setting
Professional
Modifier
Global
Typical Low
$2.69
Median
$3.55
Typical High
$8.13
Cigna
Setting
Facility
Modifier
Global
Typical Low
$4.47
Median
$11.22
Typical High
$19.95
Cigna
Setting
Professional
Modifier
Global
Typical Low
$3.39
Median
$5.25
Typical High
$7.41
United
Setting
Facility
Modifier
Global
Typical Low
$5.75
Median
$5.75
Typical High
$9.33
United
Setting
Professional
Modifier
Global
Typical Low
$2.09
Median
$3.47
Typical High
$9.33

Where Rhode Island sits

The same service costs 9.8 times more in West Virginia than in New Mexico. 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· 32nd of 51

$6.46

WV $43.65NM $4.47

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.