go back

Extended Electroencephalogram (EEG), Over One Hour

Washington 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?

$525

Typical negotiated rate. In Washington, July 2026.

Insurers have agreed to pay about $525 for this service. Most negotiated rates run $372 to $794.

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 11 insurance carriers under federal price transparency rules.

How much rates vary

Professionalmedian $525 · 10th to 90th $324 to $1,072
$50.0$100.0$200.0$500.0$1.0K$2.0K$5.0Kprofessional $525

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
26 · Professional part
Typical Low
$112.20
Median
$173.78
Typical High
$234.42
Aetna
Setting
Professional
Modifier
Global
Typical Low
$338.84
Median
$478.63
Typical High
$977.24
Aetna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$77.62
Median
$112.20
Typical High
$426.58
Aetna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$263.03
Median
$363.08
Typical High
$758.58
Ambetter
Setting
Professional
Modifier
26 · Professional part
Typical Low
$102.33
Median
$154.88
Typical High
$186.21
Asuris Northwest Health
Setting
Facility
Modifier
26 · Professional part
Typical Low
$512.86
Median
$512.86
Typical High
$512.86
Asuris Northwest Health
Setting
Professional
Modifier
Global
Typical Low
$524.81
Median
$812.83
Typical High
$1,122.02
Asuris Northwest Health
Setting
Professional
Modifier
26 · Professional part
Typical Low
$102.33
Median
$165.96
Typical High
$234.42
Asuris Northwest Health
Setting
Professional
Modifier
TC · Technical part
Typical Low
$416.87
Median
$645.65
Typical High
$912.01
Cigna
Setting
Professional
Modifier
Global
Typical Low
$338.84
Median
$676.08
Typical High
$1,348.96
Cigna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$83.18
Median
$141.25
Typical High
$251.19
Cigna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$239.88
Median
$549.54
Typical High
$1,122.02
Kaiser Permanente
Setting
Facility
Modifier
26 · Professional part
Typical Low
$72.44
Median
$117.49
Typical High
$229.09
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$269.15
Median
$478.63
Typical High
$1,071.52
Kaiser Permanente
Setting
Professional
Modifier
26 · Professional part
Typical Low
$72.44
Median
$114.82
Typical High
$190.55
Kaiser Permanente
Setting
Professional
Modifier
TC · Technical part
Typical Low
$194.98
Median
$389.05
Typical High
$870.96
Molina
Setting
Professional
Modifier
Global
Typical Low
$32.36
Median
$33.11
Typical High
$295.12
Pacific Source
Setting
Professional
Modifier
Global
Typical Low
$102.33
Median
$239.88
Typical High
$851.14
Premera BCBS
Setting
Facility
Modifier
26 · Professional part
Typical Low
$114.82
Median
$114.82
Typical High
$114.82
Premera BCBS
Setting
Professional
Modifier
Global
Typical Low
$602.56
Median
$831.76
Typical High
$1,174.90
Premera BCBS
Setting
Professional
Modifier
26 · Professional part
Typical Low
$114.82
Median
$162.18
Typical High
$234.42
Premera BCBS
Setting
Professional
Modifier
TC · Technical part
Typical Low
$489.78
Median
$676.08
Typical High
$954.99
Regence BlueShield
Setting
Facility
Modifier
26 · Professional part
Typical Low
$512.86
Median
$512.86
Typical High
$512.86
Regence BlueShield
Setting
Professional
Modifier
Global
Typical Low
$524.81
Median
$812.83
Typical High
$1,096.48
Regence BlueShield
Setting
Professional
Modifier
26 · Professional part
Typical Low
$102.33
Median
$162.18
Typical High
$213.80
Regence BlueShield
Setting
Professional
Modifier
TC · Technical part
Typical Low
$416.87
Median
$645.65
Typical High
$891.25
United
Setting
Professional
Modifier
Global
Typical Low
$398.11
Median
$630.96
Typical High
$1,230.27
United
Setting
Professional
Modifier
26 · Professional part
Typical Low
$89.13
Median
$141.25
Typical High
$251.19
United
Setting
Professional
Modifier
TC · Technical part
Typical Low
$302.00
Median
$512.86
Typical High
$977.24
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$363.08
Median
$575.44
Typical High
$707.95
Wellpoint
Setting
Professional
Modifier
26 · Professional part
Typical Low
$69.18
Median
$97.72
Typical High
$125.89
Wellpoint
Setting
Professional
Modifier
TC · Technical part
Typical Low
$295.12
Median
$478.63
Typical High
$575.44

Where Washington 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.

Washington $525 · 9th 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.