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Extended Electroencephalogram (EEG), Over One Hour

North Carolina 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 October 2026.

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

$407

Typical negotiated rate. In North Carolina, October 2026.

Insurers have agreed to pay about $407 for this service. Most negotiated rates run $324 to $490.

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 7 insurance carriers under federal price transparency rules.

How much rates vary

Facilitymedian $407 · 10th to 90th $407 to $537Professionalmedian $407 · 10th to 90th $269 to $871
$200$500$1Kfacility $407professional $407

Distribution of negotiated rates across all payers (price axis is log-scale). Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$407.38
Median
$407.38
Typical High
$407.38
Aetna
Setting
Professional
Modifier
None (both parts)
Typical Low
$398.11
Median
$407.38
Typical High
$489.78
Aetna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$83.18
Median
$85.11
Typical High
$102.33
Aetna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$302.00
Median
$323.59
Typical High
$371.54
Ambetter
Setting
Professional
Modifier
None (both parts)
Typical Low
$457.09
Median
$489.78
Typical High
$549.54
BCBS North Carolina
Setting
Professional
Modifier
26 · Professional part
Typical Low
$85.11
Median
$177.83
Typical High
$288.40
BCBS North Carolina
Setting
Professional
Modifier
TC · Technical part
Typical Low
$177.83
Median
$436.52
Typical High
$1,023.29
Cigna
Setting
Professional
Modifier
None (both parts)
Typical Low
$269.15
Median
$398.11
Typical High
$1,096.48
Cigna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$89.13
Median
$109.65
Typical High
$234.42
Cigna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$169.82
Median
$288.40
Typical High
$870.96
Medcost
Setting
Professional
Modifier
None
Typical Low
$128.82
Median
$380.19
Typical High
$380.19
Medcost
Setting
Facility
Modifier
None
Typical Low
$407.38
Median
$407.38
Typical High
$537.03
Medcost
Setting
Professional
Modifier
None (both parts)
Typical Low
$323.59
Median
$323.59
Typical High
$467.74
Medcost
Setting
Professional
Modifier
26 · Professional part
Typical Low
$79.43
Median
$89.13
Typical High
$134.90
Medcost
Setting
Professional
Modifier
TC · Technical part
Typical Low
$218.78
Median
$229.09
Typical High
$380.19
Oscar Health
Setting
Professional
Modifier
None (both parts)
Typical Low
$97.72
Median
$478.63
Typical High
$954.99
United
Setting
Professional
Modifier
None (both parts)
Typical Low
$288.40
Median
$416.87
Typical High
$1,071.52
United
Setting
Professional
Modifier
26 · Professional part
Typical Low
$79.43
Median
$95.50
Typical High
$213.80
United
Setting
Professional
Modifier
TC · Technical part
Typical Low
$194.98
Median
$331.13
Typical High
$870.96
7 more rates with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$204.17
Median
$204.17
Typical High
$213.80
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$81.28
Median
$83.18
Typical High
$85.11
Medcost
Setting
Professional
Modifier
51 · Multiple procedures
Typical Low
$162.18
Median
$162.18
Typical High
$331.13
Medcost
Setting
Professional
Modifier
80 · Assistant surgeon
Typical Low
$64.57
Median
$66.07
Typical High
$131.83
Medcost
Setting
Professional
Modifier
81 · Minimal assistant surgeon
Typical Low
$44.67
Median
$45.71
Typical High
$93.33
Medcost
Setting
Professional
Modifier
82 · Assistant surgeon, no resident
Typical Low
$44.67
Median
$45.71
Typical High
$93.33
Medcost
Setting
Professional
Modifier
AS · PA/NP assist
Typical Low
$44.67
Median
$45.71
Typical High
$93.33

Where North Carolina 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.

North Carolina· 43rd of 51

$407

AK $977NM $302

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.