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Chemistry Test For A Specific Substance

Massachusetts 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 July 2026.

How much does Chemistry Test For A Specific Substance cost?

$26.92

Typical negotiated rate. In Massachusetts, July 2026.

Insurers have agreed to pay about $26.92 for this service. The price depends on where it is billed: about $25.12 from a physician practice, and about $57.54 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 8 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$25.12$22.91 to $38.02
FacilityA hospital or hospital-owned outpatient department$57.54$33.11 to $74.13

How much rates vary

Facilitymedian $58 · 10th to 90th $22 to $100Professionalmedian $25 · 10th to 90th $20 to $72
$10.0$100.0$1.0K$10.0Kfacility $58professional $25

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
$22.39
Median
$56.23
Typical High
$107.15
Aetna
Setting
Professional
Modifier
Global
Typical Low
$21.38
Median
$23.44
Typical High
$104.71
AllWays Health Partners
Setting
Facility
Modifier
Global
Typical Low
$21.38
Median
$33.11
Typical High
$120.23
AllWays Health Partners
Setting
Professional
Modifier
Global
Typical Low
$11.75
Median
$25.12
Typical High
$61.66
BCBS
Setting
Facility
Modifier
Global
Typical Low
$46.77
Median
$57.54
Typical High
$93.33
BCBS
Setting
Professional
Modifier
Global
Typical Low
$23.44
Median
$23.44
Typical High
$30.20
Cigna
Setting
Facility
Modifier
Global
Typical Low
$19.05
Median
$37.15
Typical High
$61.66
Cigna
Setting
Professional
Modifier
Global
Typical Low
$15.49
Median
$28.84
Typical High
$66.07
Fallon Health
Setting
Facility
Modifier
Global
Typical Low
$26.92
Median
$186.21
Typical High
$7,079.46
Fallon Health
Setting
Professional
Modifier
Global
Typical Low
$36.31
Median
$36.31
Typical High
$42.66
Harvard Pilgrim
Setting
Professional
Modifier
Global
Typical Low
$25.12
Median
$25.12
Typical High
$70.79
Mass General Brigham
Setting
Facility
Modifier
Global
Typical Low
$21.38
Median
$33.11
Typical High
$120.23
Mass General Brigham
Setting
Professional
Modifier
Global
Typical Low
$11.75
Median
$25.12
Typical High
$61.66
United
Setting
Facility
Modifier
Global
Typical Low
$15.14
Median
$25.12
Typical High
$38.90
United
Setting
Professional
Modifier
Global
Typical Low
$11.22
Median
$23.44
Typical High
$60.26

Where Massachusetts sits

The same service costs 2.5 times more in South Dakota than in Maryland. Every bar is a state, most expensive first. Pick one to see its carriers and full range.

Massachusetts $26.92 · 23rd of 51
SD $47.86MD $19.05

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.