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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 July 2026.

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

$479

Typical negotiated rate. In Montana, July 2026.

Insurers have agreed to pay about $479 for this service. Most negotiated rates run $372 to $692.

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.

How much rates vary

Professionalmedian $479 · 10th to 90th $363 to $832
$200.0$500.0$1.0K$2.0Kprofessional $479

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
Professional
Modifier
Global
Typical Low
$363.08
Median
$398.11
Typical High
$831.76
Aetna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$77.62
Median
$107.15
Typical High
$389.05
Aetna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$281.84
Median
$323.59
Typical High
$645.65
BCBS
Setting
Professional
Modifier
Global
Typical Low
$131.83
Median
$691.83
Typical High
$691.83
Cigna
Setting
Facility
Modifier
26 · Professional part
Typical Low
$131.83
Median
$131.83
Typical High
$158.49
Cigna
Setting
Professional
Modifier
Global
Typical Low
$316.23
Median
$630.96
Typical High
$1,949.84
Cigna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$85.11
Median
$120.23
Typical High
$354.81
Cigna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$199.53
Median
$512.86
Typical High
$1,584.89
MountainHealth Co-op
Setting
Professional
Modifier
Global
Typical Low
$676.08
Median
$758.58
Typical High
$851.14
Providence
Setting
Facility
Modifier
26 · Professional part
Typical Low
$131.83
Median
$131.83
Typical High
$158.49
Providence
Setting
Professional
Modifier
Global
Typical Low
$446.68
Median
$891.25
Typical High
$1,148.15
Providence
Setting
Professional
Modifier
26 · Professional part
Typical Low
$87.10
Median
$120.23
Typical High
$190.55
Providence
Setting
Professional
Modifier
TC · Technical part
Typical Low
$295.12
Median
$489.78
Typical High
$758.58
United
Setting
Professional
Modifier
Global
Typical Low
$354.81
Median
$660.69
Typical High
$794.33
United
Setting
Professional
Modifier
26 · Professional part
Typical Low
$93.33
Median
$144.54
Typical High
$173.78
United
Setting
Professional
Modifier
TC · Technical part
Typical Low
$275.42
Median
$512.86
Typical High
$616.60

Where Montana sits

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

Montana $479 · 14th of 51
MN $933NM $372

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.