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Extended Electroencephalogram (EEG), Over One Hour

South Dakota 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?

$759

Typical negotiated rate. In South Dakota, October 2026.

Insurers have agreed to pay about $759 for this service. Most negotiated rates run $575 to $977.

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 $759 · 10th to 90th $355 to $1,349Professionalmedian $759 · 10th to 90th $447 to $1,175
$200$500$1K$2Kfacility $759professional $759

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
$416.87
Median
$416.87
Typical High
$416.87
Aetna
Setting
Professional
Modifier
None (both parts)
Typical Low
$398.11
Median
$457.09
Typical High
$602.56
Aetna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$81.28
Median
$85.11
Typical High
$104.71
Aetna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$316.23
Median
$371.54
Typical High
$501.19
Cigna
Setting
Professional
Modifier
None (both parts)
Typical Low
$758.58
Median
$977.24
Typical High
$1,202.26
Cigna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$144.54
Median
$177.83
Typical High
$223.87
Cigna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$588.84
Median
$794.33
Typical High
$1,000.00
Medica
Setting
Facility
Modifier
None
Typical Low
$354.81
Median
$758.58
Typical High
$1,348.96
Medica
Setting
Professional
Modifier
None (both parts)
Typical Low
$398.11
Median
$851.14
Typical High
$2,754.23
Medica
Setting
Professional
Modifier
26 · Professional part
Typical Low
$87.10
Median
$186.21
Typical High
$776.25
Medica
Setting
Professional
Modifier
TC · Technical part
Typical Low
$309.03
Median
$676.08
Typical High
$2,187.76
Midlands
Setting
Professional
Modifier
None
Typical Low
$758.58
Median
$758.58
Typical High
$831.76
Midlands
Setting
Professional
Modifier
26 · Professional part
Typical Low
$169.82
Median
$169.82
Typical High
$177.83
Midlands
Setting
Professional
Modifier
TC · Technical part
Typical Low
$588.84
Median
$588.84
Typical High
$660.69
Midlands
Setting
Professional
Modifier
None (both parts)
Typical Low
$831.76
Median
$891.25
Typical High
$933.25
Sanford Health Plan
Setting
Professional
Modifier
None
Typical Low
$158.49
Median
$616.60
Typical High
$954.99
Sanford Health Plan
Setting
Professional
Modifier
26 · Professional part
Typical Low
$97.72
Median
$120.23
Typical High
$204.17
Sanford Health Plan
Setting
Professional
Modifier
TC · Technical part
Typical Low
$61.66
Median
$489.78
Typical High
$741.31
United
Setting
Professional
Modifier
None (both parts)
Typical Low
$354.81
Median
$741.31
Typical High
$870.96
United
Setting
Professional
Modifier
26 · Professional part
Typical Low
$87.10
Median
$158.49
Typical High
$186.21
United
Setting
Professional
Modifier
TC · Technical part
Typical Low
$275.42
Median
$588.84
Typical High
$691.83
Wellmark
Setting
Professional
Modifier
None (both parts)
Typical Low
$954.99
Median
$1,174.90
Typical High
$1,174.90
Wellmark
Setting
Professional
Modifier
26 · Professional part
Typical Low
$177.83
Median
$213.80
Typical High
$213.80
Wellmark
Setting
Professional
Modifier
TC · Technical part
Typical Low
$776.25
Median
$954.99
Typical High
$954.99

Where South Dakota 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.

South Dakota· 9th of 51

$759

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.