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Blood Phosphorus (Phosphate) Test

Connecticut 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?

$4.79

Typical negotiated rate. In Connecticut, July 2026.

Insurers have agreed to pay about $4.79 for this service. The price depends on where it is billed: about $4.27 from a physician practice, and about $10.47 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 6 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$4.27$3.72 to $4.47
FacilityA hospital or hospital-owned outpatient department$10.47$6.76 to $16.60

How much rates vary

Facilitymedian $10 · 10th to 90th $5 to $45Professionalmedian $4 · 10th to 90th $3 to $6
$2$5$10$20$50$100facility $10professional $4

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
$5.62
Median
$11.22
Typical High
$60.26
Aetna
Setting
Professional
Modifier
Global
Typical Low
$3.55
Median
$4.27
Typical High
$5.25
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$5.13
Median
$7.41
Typical High
$12.88
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$2.34
Median
$2.88
Typical High
$7.41
Cigna
Setting
Facility
Modifier
Global
Typical Low
$3.31
Median
$7.76
Typical High
$19.05
Cigna
Setting
Professional
Modifier
Global
Typical Low
$3.09
Median
$5.50
Typical High
$7.59
ConnectiCare
Setting
Professional
Modifier
Global
Typical Low
$2.24
Median
$4.79
Typical High
$7.24
Health New England
Setting
Facility
Modifier
Global
Typical Low
$6.17
Median
$16.60
Typical High
$19.95
United
Setting
Facility
Modifier
Global
Typical Low
$1.38
Median
$4.79
Typical High
$10.47
United
Setting
Professional
Modifier
Global
Typical Low
$2.09
Median
$4.37
Typical High
$8.32

Where Connecticut 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.

Connecticut· 47th of 51

$4.79

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.