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Extended Electroencephalogram (EEG), Over One Hour

Maryland 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?

$427

Typical negotiated rate. In Maryland, July 2026.

Insurers have agreed to pay about $427 for this service. Most negotiated rates run $389 to $501.

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 $427 · 10th to 90th $331 to $646
$100.0$200.0$500.0$1.0K$2.0Kprofessional $427

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
$50.12
Median
$75.86
Typical High
$93.33
Aetna
Setting
Professional
Modifier
Global
Typical Low
$338.84
Median
$426.58
Typical High
$588.84
Aetna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$77.62
Median
$91.20
Typical High
$239.88
Aetna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$269.15
Median
$331.13
Typical High
$478.63
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$158.49
Median
$457.09
Typical High
$562.34
CareFirst
Setting
Professional
Modifier
26 · Professional part
Typical Low
$81.28
Median
$81.28
Typical High
$102.33
CareFirst
Setting
Professional
Modifier
TC · Technical part
Typical Low
$371.54
Median
$371.54
Typical High
$446.68
Cigna
Setting
Professional
Modifier
Global
Typical Low
$323.59
Median
$549.54
Typical High
$1,122.02
Cigna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$77.62
Median
$112.20
Typical High
$229.09
Cigna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$234.42
Median
$446.68
Typical High
$977.24
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$380.19
Median
$562.34
Typical High
$741.31
Kaiser Permanente
Setting
Professional
Modifier
26 · Professional part
Typical Low
$69.18
Median
$97.72
Typical High
$138.04
Kaiser Permanente
Setting
Professional
Modifier
TC · Technical part
Typical Low
$302.00
Median
$457.09
Typical High
$616.60
United
Setting
Professional
Modifier
Global
Typical Low
$251.19
Median
$467.74
Typical High
$1,023.29
United
Setting
Professional
Modifier
26 · Professional part
Typical Low
$69.18
Median
$107.15
Typical High
$218.78
United
Setting
Professional
Modifier
TC · Technical part
Typical Low
$186.21
Median
$371.54
Typical High
$794.33
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$331.13
Median
$512.86
Typical High
$758.58
Wellpoint
Setting
Professional
Modifier
26 · Professional part
Typical Low
$60.26
Median
$91.20
Typical High
$134.90
Wellpoint
Setting
Professional
Modifier
TC · Technical part
Typical Low
$269.15
Median
$416.87
Typical High
$616.60

Where Maryland 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.

Maryland $427 · 32nd 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.