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Extended Electroencephalogram (EEG), Over One Hour

Massachusetts 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?

$562

Typical negotiated rate. In Massachusetts, July 2026.

Insurers have agreed to pay about $562 for this service. Most negotiated rates run $407 to $955.

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 9 insurance carriers under federal price transparency rules.

How much rates vary

Professionalmedian $562 · 10th to 90th $339 to $1,288
$100$200$500$1K$2Kprofessional $562

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
$89.13
Median
$89.13
Typical High
$89.13
Aetna
Setting
Professional
Modifier
Global
Typical Low
$331.13
Median
$446.68
Typical High
$1,000.00
Aetna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$79.43
Median
$93.33
Typical High
$363.08
Aetna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$251.19
Median
$346.74
Typical High
$758.58
AllWays Health Partners
Setting
Facility
Modifier
26 · Professional part
Typical Low
$186.21
Median
$208.93
Typical High
$537.03
AllWays Health Partners
Setting
Professional
Modifier
Global
Typical Low
$338.84
Median
$660.69
Typical High
$2,754.23
AllWays Health Partners
Setting
Professional
Modifier
26 · Professional part
Typical Low
$77.62
Median
$138.04
Typical High
$776.25
AllWays Health Partners
Setting
Professional
Modifier
TC · Technical part
Typical Low
$275.42
Median
$549.54
Typical High
$2,187.76
BCBS
Setting
Professional
Modifier
Global
Typical Low
$645.65
Median
$954.99
Typical High
$1,348.96
BCBS
Setting
Professional
Modifier
26 · Professional part
Typical Low
$97.72
Median
$165.96
Typical High
$218.78
Cigna
Setting
Professional
Modifier
Global
Typical Low
$295.12
Median
$676.08
Typical High
$1,412.54
Cigna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$87.10
Median
$138.04
Typical High
$257.04
Cigna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$213.80
Median
$549.54
Typical High
$1,174.90
Fallon Health
Setting
Professional
Modifier
Global
Typical Low
$63.10
Median
$309.03
Typical High
$724.44
Harvard Pilgrim
Setting
Professional
Modifier
Global
Typical Low
$489.78
Median
$794.33
Typical High
$1,318.26
Harvard Pilgrim
Setting
Professional
Modifier
26 · Professional part
Typical Low
$91.20
Median
$154.88
Typical High
$239.88
Harvard Pilgrim
Setting
Professional
Modifier
TC · Technical part
Typical Low
$398.11
Median
$676.08
Typical High
$1,071.52
Health New England
Setting
Professional
Modifier
Global
Typical Low
$173.78
Median
$208.93
Typical High
$741.31
Mass General Brigham
Setting
Facility
Modifier
26 · Professional part
Typical Low
$186.21
Median
$208.93
Typical High
$537.03
Mass General Brigham
Setting
Professional
Modifier
Global
Typical Low
$338.84
Median
$660.69
Typical High
$2,754.23
Mass General Brigham
Setting
Professional
Modifier
26 · Professional part
Typical Low
$77.62
Median
$138.04
Typical High
$776.25
Mass General Brigham
Setting
Professional
Modifier
TC · Technical part
Typical Low
$275.42
Median
$549.54
Typical High
$2,187.76
United
Setting
Professional
Modifier
Global
Typical Low
$380.19
Median
$707.95
Typical High
$1,348.96
United
Setting
Professional
Modifier
26 · Professional part
Typical Low
$91.20
Median
$147.91
Typical High
$263.03
United
Setting
Professional
Modifier
TC · Technical part
Typical Low
$309.03
Median
$616.60
Typical High
$1,174.90

Where Massachusetts sits

The same service costs 2.5 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.

Massachusetts· 7th of 51

$562

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.