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Blood Phosphorus (Phosphate) Test

Massachusetts 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.

Facilitymedian $14 · 10th–90th $5$630%10%10th90th$14Professionalmedian $5 · 10th–90th $4$170%50%10th90th$5$2.0$10.0$50.0$200.0$1.0K$5.0K$20.0K

Distribution of negotiated rates across all payers (price axis is log-scale). Facility and professional rates are different services and are charted separately. Need provider-level prices? Contact us.

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$6.46
Median
$22.91
Typical High
$67.61
Aetna
Setting
Professional
Modifier
Global
Typical Low
$3.55
Median
$4.47
Typical High
$21.38
AllWays Health Partners
Setting
Facility
Modifier
Global
Typical Low
$4.37
Median
$6.61
Typical High
$100.00
AllWays Health Partners
Setting
Professional
Modifier
Global
Typical Low
$2.34
Median
$4.79
Typical High
$11.48
BCBS
Setting
Facility
Modifier
Global
Typical Low
$9.12
Median
$11.48
Typical High
$18.20
BCBS
Setting
Professional
Modifier
Global
Typical Low
$6.03
Median
$6.03
Typical High
$6.03
Cigna
Setting
Facility
Modifier
Global
Typical Low
$3.72
Median
$7.41
Typical High
$12.30
Cigna
Setting
Professional
Modifier
Global
Typical Low
$2.82
Median
$5.75
Typical High
$12.59
Fallon Health
Setting
Facility
Modifier
Global
Typical Low
$5.37
Median
$39.81
Typical High
$7,079.46
Fallon Health
Setting
Professional
Modifier
Global
Typical Low
$7.08
Median
$7.08
Typical High
$8.32
Harvard Pilgrim
Setting
Professional
Modifier
Global
Typical Low
$4.79
Median
$4.79
Typical High
$14.45
Health New England
Setting
Facility
Modifier
Global
Typical Low
$5.75
Median
$7.08
Typical High
$41.69
Mass General Brigham
Setting
Facility
Modifier
Global
Typical Low
$4.37
Median
$6.61
Typical High
$100.00
Mass General Brigham
Setting
Professional
Modifier
Global
Typical Low
$2.34
Median
$4.79
Typical High
$11.48
Tufts
Setting
Facility
Modifier
Global
Typical Low
$4.17
Median
$5.37
Typical High
$11.22
Tufts
Setting
Professional
Modifier
Global
Typical Low
$4.17
Median
$4.90
Typical High
$7.59
United
Setting
Facility
Modifier
Global
Typical Low
$2.69
Median
$4.79
Typical High
$7.76
United
Setting
Professional
Modifier
Global
Typical Low
$2.14
Median
$4.27
Typical High
$12.02