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Extended Electroencephalogram (EEG), Over One Hour

Montana rates for HCPCS 95813

Sensors placed on the scalp record the brain's electrical activity continuously over a longer session than a routine brain wave test, typically lasting more than an hour. The extra recording time increases the chance of capturing abnormal patterns, such as seizure activity, that might not appear during a shorter test. It is noninvasive and doesn't involve sampling from inside the body.

Rates data updated October 2026.

How much does Extended Electroencephalogram (EEG), Over One Hour cost?

$692

Typical negotiated rate. In Montana, October 2026.

Insurers have agreed to pay about $692 for this service. The price depends on where it is billed: about $676 from a physician practice, and about $813 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$676$501 to $692
FacilityA hospital or hospital-owned outpatient department$813$676 to $891

How much rates vary

Facilitymedian $813 · 10th to 90th $562 to $1,023Professionalmedian $676 · 10th to 90th $363 to $794
$200$500$1K$2Kfacility $813professional $676

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
$2,137.96
Median
$2,137.96
Typical High
$2,137.96
Aetna
Setting
Professional
Modifier
None (both parts)
Typical Low
$354.81
Median
$398.11
Typical High
$588.84
Aetna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$77.62
Median
$81.28
Typical High
$120.23
Aetna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$281.84
Median
$316.23
Typical High
$478.63
BCBS Montana
Setting
Facility
Modifier
None
Typical Low
$1,479.11
Median
$1,479.11
Typical High
$2,238.72
BCBS Montana
Setting
Professional
Modifier
None (both parts)
Typical Low
$131.83
Median
$691.83
Typical High
$691.83
Cigna
Setting
Facility
Modifier
None
Typical Low
$489.78
Median
$691.83
Typical High
$977.24
Cigna
Setting
Professional
Modifier
None (both parts)
Typical Low
$588.84
Median
$691.83
Typical High
$691.83
Cigna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$112.20
Median
$131.83
Typical High
$131.83
Cigna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$478.63
Median
$562.34
Typical High
$562.34
MountainHealth Co-op
Setting
Facility
Modifier
None
Typical Low
$602.56
Median
$831.76
Typical High
$933.25
MountainHealth Co-op
Setting
Professional
Modifier
None (both parts)
Typical Low
$524.81
Median
$812.83
Typical High
$870.96
Providence
Setting
Facility
Modifier
None
Typical Low
$489.78
Median
$691.83
Typical High
$977.24
Providence
Setting
Professional
Modifier
None (both parts)
Typical Low
$407.38
Median
$616.60
Typical High
$691.83
Providence
Setting
Professional
Modifier
26 · Professional part
Typical Low
$81.28
Median
$123.03
Typical High
$134.90
Providence
Setting
Professional
Modifier
TC · Technical part
Typical Low
$331.13
Median
$489.78
Typical High
$562.34
United
Setting
Professional
Modifier
None (both parts)
Typical Low
$501.19
Median
$676.08
Typical High
$741.31
United
Setting
Professional
Modifier
26 · Professional part
Typical Low
$120.23
Median
$144.54
Typical High
$158.49
United
Setting
Professional
Modifier
TC · Technical part
Typical Low
$380.19
Median
$524.81
Typical High
$575.44

Where Montana sits

The same service costs 3.2 times more in Alaska than in New Mexico. 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· 10th of 51

$692

AK $977NM $302

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.