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Extended EEG Brain Wave Monitoring

South Carolina 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?

$347

Typical negotiated rate. In South Carolina, October 2026.

Insurers have agreed to pay about $347 for this service. The price depends on where it is billed: about $347 from a physician practice, and about $724 from a hospital or other facility.

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.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$347$204 to $437
FacilityA hospital or hospital-owned outpatient department$724$447 to $977

How much rates vary

Facilitymedian $724 · 10th to 90th $339 to $1,096Professionalmedian $347 · 10th to 90th $89 to $589
$100$200$500$1Kfacility $724professional $347

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

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$346.74
Median
$346.74
Typical High
$436.52
Aetna
Setting
Professional
Modifier
None (both parts)
Typical Low
$323.59
Median
$346.74
Typical High
$416.87
Aetna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$56.23
Median
$57.54
Typical High
$69.18
Aetna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$269.15
Median
$288.40
Typical High
$346.74
Ambetter
Setting
Professional
Modifier
None (both parts)
Typical Low
$331.13
Median
$501.19
Typical High
$660.69
Ambetter
Setting
Professional
Modifier
26 · Professional part
Typical Low
$52.48
Median
$79.43
Typical High
$79.43
BCBS South Carolina
Setting
Facility
Modifier
None
Typical Low
$363.08
Median
$758.58
Typical High
$1,096.48
BCBS South Carolina
Setting
Facility
Modifier
TC · Technical part
Typical Low
$489.78
Median
$489.78
Typical High
$489.78
BCBS South Carolina
Setting
Professional
Modifier
None (both parts)
Typical Low
$138.04
Median
$281.84
Typical High
$354.81
BCBS South Carolina
Setting
Professional
Modifier
26 · Professional part
Typical Low
$56.23
Median
$66.07
Typical High
$85.11
BCBS South Carolina
Setting
Professional
Modifier
TC · Technical part
Typical Low
$63.10
Median
$213.80
Typical High
$302.00
Cigna
Setting
Facility
Modifier
None
Typical Low
$288.40
Median
$288.40
Typical High
$288.40
Cigna
Setting
Professional
Modifier
None (both parts)
Typical Low
$213.80
Median
$263.03
Typical High
$602.56
Cigna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$54.95
Median
$63.10
Typical High
$104.71
Cigna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$147.91
Median
$186.21
Typical High
$501.19
Medcost
Setting
Facility
Modifier
None
Typical Low
$173.78
Median
$380.19
Typical High
$933.25
Medcost
Setting
Professional
Modifier
None (both parts)
Typical Low
$208.93
Median
$263.03
Typical High
$467.74
Medcost
Setting
Professional
Modifier
26 · Professional part
Typical Low
$56.23
Median
$67.61
Typical High
$93.33
Medcost
Setting
Professional
Modifier
TC · Technical part
Typical Low
$165.96
Median
$208.93
Typical High
$467.74
Molina
Setting
Professional
Modifier
None (both parts)
Typical Low
$75.86
Median
$371.54
Typical High
$616.60
United
Setting
Facility
Modifier
None
Typical Low
$912.01
Median
$1,096.48
Typical High
$1,445.44
United
Setting
Professional
Modifier
None (both parts)
Typical Low
$229.09
Median
$316.23
Typical High
$537.03
United
Setting
Professional
Modifier
26 · Professional part
Typical Low
$51.29
Median
$60.26
Typical High
$95.50
United
Setting
Professional
Modifier
TC · Technical part
Typical Low
$169.82
Median
$263.03
Typical High
$446.68
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
$162.18
Median
$169.82
Typical High
$169.82
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$66.07
Median
$69.18
Typical High
$69.18
Medcost
Setting
Professional
Modifier
51 · Multiple procedures
Typical Low
$104.71
Median
$131.83
Typical High
$288.40
Medcost
Setting
Professional
Modifier
80 · Assistant surgeon
Typical Low
$41.69
Median
$52.48
Typical High
$114.82
Medcost
Setting
Professional
Modifier
81 · Minimal assistant surgeon
Typical Low
$29.51
Median
$37.15
Typical High
$81.28
Medcost
Setting
Professional
Modifier
82 · Assistant surgeon, no resident
Typical Low
$29.51
Median
$37.15
Typical High
$81.28
Medcost
Setting
Professional
Modifier
AS · PA/NP assist
Typical Low
$29.51
Median
$37.15
Typical High
$81.28

Where South 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.

South Carolina· 37th of 51

$347

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.