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Extended EEG Brain Wave Monitoring

Montana rates for HCPCS 95812

This test records the brain's electrical activity using scalp electrodes over a longer period than a routine EEG, increasing the chance of capturing abnormal patterns, such as those linked to seizures, that might not appear during a brief recording. The extended recording time allows the patient to pass through more of a natural sleep-wake cycle while brain activity is continuously tracked. It falls between a standard-length EEG and a more prolonged, multi-hour or overnight monitoring study.

Rates data updated October 2026.

How much does Extended EEG Brain Wave Monitoring cost?

$550

Typical negotiated rate. In Montana, October 2026.

Insurers have agreed to pay about $550 for this service. The price depends on where it is billed: about $537 from a physician practice, and about $661 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$537$363 to $550
FacilityA hospital or hospital-owned outpatient department$661$550 to $708

How much rates vary

Facilitymedian $661 · 10th to 90th $447 to $832Professionalmedian $537 · 10th to 90th $288 to $617
$100$200$500$1Kfacility $661professional $537

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
$831.76
Median
$831.76
Typical High
$831.76
Aetna
Setting
Professional
Modifier
None (both parts)
Typical Low
$309.03
Median
$331.13
Typical High
$489.78
Aetna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$51.29
Median
$51.29
Typical High
$79.43
Aetna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$257.04
Median
$275.42
Typical High
$416.87
BCBS Montana
Setting
Facility
Modifier
None
Typical Low
$1,202.26
Median
$1,202.26
Typical High
$1,862.09
BCBS Montana
Setting
Professional
Modifier
None (both parts)
Typical Low
$87.10
Median
$549.54
Typical High
$549.54
Cigna
Setting
Facility
Modifier
None
Typical Low
$416.87
Median
$549.54
Typical High
$831.76
Cigna
Setting
Professional
Modifier
None (both parts)
Typical Low
$467.74
Median
$549.54
Typical High
$549.54
Cigna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$74.13
Median
$87.10
Typical High
$87.10
Cigna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$398.11
Median
$467.74
Typical High
$467.74
MountainHealth Co-op
Setting
Facility
Modifier
None
Typical Low
$512.86
Median
$660.69
Typical High
$758.58
MountainHealth Co-op
Setting
Professional
Modifier
None (both parts)
Typical Low
$426.58
Median
$660.69
Typical High
$691.83
Providence
Setting
Facility
Modifier
None
Typical Low
$416.87
Median
$549.54
Typical High
$831.76
Providence
Setting
Professional
Modifier
None (both parts)
Typical Low
$331.13
Median
$501.19
Typical High
$549.54
Providence
Setting
Professional
Modifier
26 · Professional part
Typical Low
$53.70
Median
$81.28
Typical High
$89.13
Providence
Setting
Professional
Modifier
TC · Technical part
Typical Low
$281.84
Median
$416.87
Typical High
$467.74
United
Setting
Professional
Modifier
None (both parts)
Typical Low
$416.87
Median
$537.03
Typical High
$588.84
United
Setting
Professional
Modifier
26 · Professional part
Typical Low
$79.43
Median
$95.50
Typical High
$104.71
United
Setting
Professional
Modifier
TC · Technical part
Typical Low
$346.74
Median
$446.68
Typical High
$489.78

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

$550

AK $776NM $240

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.