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CACNA1A Gene Test

Tennessee rates for HCPCS 81186

Looks for changes in the CACNA1A gene in a blood or saliva sample. Changes in this gene are linked to inherited neurological conditions including episodes of unsteadiness and dizziness, a severe form of migraine that comes with temporary weakness on one side, and a slowly progressive loss of balance and coordination.

Rates data updated July 2026.

How much does CACNA1A Gene Test cost?

$148

Typical negotiated rate. In Tennessee, July 2026.

Insurers have agreed to pay about $148 for this service. The price depends on where it is billed: about $148 from a physician practice, and about $282 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 5 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$148$138 to $186
FacilityA hospital or hospital-owned outpatient department$282$158 to $617

How much rates vary

Facilitymedian $282 · 10th to 90th $138 to $794Professionalmedian $148 · 10th to 90th $95 to $224
$50$100$200$500$1Kfacility $282professional $148

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
$138.04
Median
$281.84
Typical High
$794.33
Aetna
Setting
Professional
Modifier
Global
Typical Low
$138.04
Median
$147.91
Typical High
$213.80
BCBS
Setting
Professional
Modifier
Global
Typical Low
$95.50
Median
$186.21
Typical High
$186.21
Cigna
Setting
Facility
Modifier
Global
Typical Low
$83.18
Median
$331.13
Typical High
$524.81
Cigna
Setting
Professional
Modifier
Global
Typical Low
$83.18
Median
$102.33
Typical High
$257.04
Lucent Health
Setting
Facility
Modifier
Global
Typical Low
$870.96
Median
$870.96
Typical High
$870.96
Lucent Health
Setting
Professional
Modifier
Global
Typical Low
$933.25
Median
$1,380.38
Typical High
$1,380.38
United
Setting
Facility
Modifier
Global
Typical Low
$77.62
Median
$186.21
Typical High
$186.21
United
Setting
Professional
Modifier
Global
Typical Low
$77.62
Median
$112.20
Typical High
$186.21

Where Tennessee sits

The same service costs 3.4 times more in Alaska than in Delaware. 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.

Tennessee· 43rd of 51

$148

AK $417DE $123

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.