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Extended EEG Brain Wave Monitoring

Tennessee 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 October 2026.

How much does Extended EEG Brain Wave Monitoring cost?

$389

Typical negotiated rate. In Tennessee, October 2026.

Insurers have agreed to pay about $389 for this service. Most negotiated rates run $324 to $776.

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

Facilitymedian $324 · 10th to 90th $195 to $759Professionalmedian $389 · 10th to 90th $302 to $3,311
$200$500$1K$2Kfacility $324professional $389

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
$245.47
Median
$346.74
Typical High
$346.74
Aetna
Setting
Professional
Modifier
None (both parts)
Typical Low
$309.03
Median
$323.59
Typical High
$489.78
Aetna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$52.48
Median
$54.95
Typical High
$79.43
Aetna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$251.19
Median
$269.15
Typical High
$416.87
Ambetter
Setting
Professional
Modifier
26 · Professional part
Typical Low
$52.48
Median
$52.48
Typical High
$83.18
BCBS Tennessee
Setting
Professional
Modifier
None (both parts)
Typical Low
$331.13
Median
$363.08
Typical High
$630.96
BCBS Tennessee
Setting
Professional
Modifier
26 · Professional part
Typical Low
$60.26
Median
$67.61
Typical High
$107.15
BCBS Tennessee
Setting
Professional
Modifier
TC · Technical part
Typical Low
$275.42
Median
$302.00
Typical High
$537.03
Cigna
Setting
Facility
Modifier
None
Typical Low
$194.98
Median
$323.59
Typical High
$758.58
Cigna
Setting
Professional
Modifier
None (both parts)
Typical Low
$257.04
Median
$331.13
Typical High
$724.44
Cigna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$52.48
Median
$61.66
Typical High
$123.03
Cigna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$208.93
Median
$269.15
Typical High
$602.56
Lucent Health
Setting
Professional
Modifier
None (both parts)
Typical Low
$2,238.72
Median
$2,238.72
Typical High
$3,311.31
Lucent Health
Setting
Professional
Modifier
26 · Professional part
Typical Low
$489.78
Median
$776.25
Typical High
$776.25
Lucent Health
Setting
Professional
Modifier
TC · Technical part
Typical Low
$1,862.09
Median
$1,862.09
Typical High
$2,818.38
United
Setting
Professional
Modifier
None (both parts)
Typical Low
$223.87
Median
$380.19
Typical High
$724.44
United
Setting
Professional
Modifier
26 · Professional part
Typical Low
$52.48
Median
$64.57
Typical High
$123.03
United
Setting
Professional
Modifier
TC · Technical part
Typical Low
$199.53
Median
$323.59
Typical High
$616.60
2 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
$151.36
Median
$162.18
Typical High
$208.93
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$61.66
Median
$64.57
Typical High
$83.18

Where Tennessee 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.

Tennessee· 24th of 51

$389

AK $776NM $240

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.