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Extended EEG Brain Wave Monitoring

Washington, DC 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 July 2026.

How much does Extended EEG Brain Wave Monitoring cost?

$355

Typical negotiated rate. In Washington, DC, July 2026.

Insurers have agreed to pay about $355 for this service. Most negotiated rates run $324 to $447.

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.

How much rates vary

Professionalmedian $355 · 10th to 90th $269 to $490
$100$200$500$1Kprofessional $355

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
$52.48
Median
$52.48
Typical High
$52.48
Aetna
Setting
Professional
Modifier
Global
Typical Low
$269.15
Median
$354.81
Typical High
$467.74
Aetna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$45.71
Median
$52.48
Typical High
$114.82
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$177.83
Median
$354.81
Typical High
$912.01
CareFirst
Setting
Professional
Modifier
26 · Professional part
Typical Low
$53.70
Median
$53.70
Typical High
$66.07
Cigna
Setting
Professional
Modifier
Global
Typical Low
$245.47
Median
$549.54
Typical High
$1,513.56
Cigna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$51.29
Median
$87.10
Typical High
$234.42
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$426.58
Median
$489.78
Typical High
$831.76
Kaiser Permanente
Setting
Professional
Modifier
26 · Professional part
Typical Low
$61.66
Median
$70.79
Typical High
$125.89
United
Setting
Professional
Modifier
Global
Typical Low
$234.42
Median
$524.81
Typical High
$1,071.52
United
Setting
Professional
Modifier
26 · Professional part
Typical Low
$46.77
Median
$83.18
Typical High
$154.88

Where Washington, DC sits

The same service costs 2.4 times more in Minnesota 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.

Washington, DC· 32nd of 51

$355

MN $741NM $309

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.