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Blood Phosphorus (Phosphate) Test

Montana 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 October 2026.

How much does Blood Phosphorus (Phosphate) Test cost?

$6.92

Typical negotiated rate. In Montana, October 2026.

Insurers have agreed to pay about $6.92 for this service. The price depends on where it is billed: about $6.31 from a physician practice, and about $8.13 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 6 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$6.31$4.27 to $6.92
FacilityA hospital or hospital-owned outpatient department$8.13$6.92 to $10.96

How much rates vary

Facilitymedian $8 · 10th to 90th $6 to $52Professionalmedian $6 · 10th to 90th $2 to $8
$2$5$10$20$50$100facility $8professional $6

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

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$17.38
Median
$52.48
Typical High
$107.15
Aetna
Setting
Professional
Modifier
None
Typical Low
$4.79
Median
$5.89
Typical High
$7.08
BCBS Montana
Setting
Facility
Modifier
None
Typical Low
$6.31
Median
$6.31
Typical High
$16.60
BCBS Montana
Setting
Professional
Modifier
None
Typical Low
$6.31
Median
$6.31
Typical High
$6.31
Cigna
Setting
Facility
Modifier
None
Typical Low
$6.92
Median
$7.08
Typical High
$14.13
Cigna
Setting
Professional
Modifier
None
Typical Low
$5.75
Median
$6.92
Typical High
$6.92
MountainHealth Co-op
Setting
Facility
Modifier
None
Typical Low
$5.89
Median
$7.94
Typical High
$10.96
MountainHealth Co-op
Setting
Professional
Modifier
None
Typical Low
$6.46
Median
$7.08
Typical High
$8.51
Providence
Setting
Facility
Modifier
None
Typical Low
$6.92
Median
$6.92
Typical High
$14.13
Providence
Setting
Professional
Modifier
None
Typical Low
$4.27
Median
$4.27
Typical High
$6.92
United
Setting
Professional
Modifier
None
Typical Low
$2.00
Median
$2.00
Typical High
$4.79

Where Montana sits

The same service costs 11.7 times more in Vermont than in Maryland. 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.

Montana· 11th of 51

$6.92

VT $41.69MD $3.55

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.