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Repeat Expansion Test, Inherited Ataxia

Massachusetts rates for HCPCS 81178

A laboratory test on a blood sample that measures a short stretch of DNA that is normally repeated a set number of times within a single gene. An abnormally high number of repeats causes an inherited disorder of balance, coordination and speech that develops gradually over years. The test is used to confirm a diagnosis in someone with symptoms, or to test a relative of an affected person.

Rates data updated July 2026.

How much does Repeat Expansion Test, Inherited Ataxia cost?

$138

Typical negotiated rate. In Massachusetts, July 2026.

Insurers have agreed to pay about $138 for this service. The price depends on where it is billed: about $138 from a physician practice, and about $191 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 9 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$138$112 to $138
FacilityA hospital or hospital-owned outpatient department$191$138 to $316

How much rates vary

Facilitymedian $191 · 10th to 90th $102 to $407Professionalmedian $138 · 10th to 90th $81 to $331
$100.0$1.0K$10.0Kfacility $191professional $138

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
$95.50
Median
$239.88
Typical High
$446.68
Aetna
Setting
Professional
Modifier
Global
Typical Low
$74.13
Median
$102.33
Typical High
$407.38
AllWays Health Partners
Setting
Facility
Modifier
Global
Typical Low
$102.33
Median
$158.49
Typical High
$446.68
AllWays Health Partners
Setting
Professional
Modifier
Global
Typical Low
$81.28
Median
$138.04
Typical High
$457.09
BCBS
Setting
Facility
Modifier
Global
Typical Low
$138.04
Median
$169.82
Typical High
$275.42
BCBS
Setting
Professional
Modifier
Global
Typical Low
$128.82
Median
$128.82
Typical High
$134.90
Cigna
Setting
Facility
Modifier
Global
Typical Low
$97.72
Median
$107.15
Typical High
$218.78
Cigna
Setting
Professional
Modifier
Global
Typical Low
$74.13
Median
$165.96
Typical High
$288.40
Fallon Health
Setting
Facility
Modifier
Global
Typical Low
$72.44
Median
$794.33
Typical High
$7,079.46
Fallon Health
Setting
Professional
Modifier
Global
Typical Low
$102.33
Median
$199.53
Typical High
$234.42
Harvard Pilgrim
Setting
Professional
Modifier
Global
Typical Low
$138.04
Median
$138.04
Typical High
$229.09
Health New England
Setting
Facility
Modifier
Global
Typical Low
$128.82
Median
$128.82
Typical High
$128.82
Mass General Brigham
Setting
Facility
Modifier
Global
Typical Low
$102.33
Median
$158.49
Typical High
$446.68
Mass General Brigham
Setting
Professional
Modifier
Global
Typical Low
$81.28
Median
$138.04
Typical High
$457.09
United
Setting
Facility
Modifier
Global
Typical Low
$81.28
Median
$138.04
Typical High
$165.96
United
Setting
Professional
Modifier
Global
Typical Low
$81.28
Median
$138.04
Typical High
$275.42

Where Massachusetts sits

The same service costs 3.4 times more in Alaska than in Delaware. Every bar is a state, most expensive first. Pick one to see its carriers and full range.

Massachusetts $138 · 21st of 51
AK $309DE $91.20

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.