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Brain Wave Monitoring During Non-Brain Surgery

Maryland rates for HCPCS 95955

This service records and monitors brain wave activity using electrodes on the scalp while a person undergoes a surgery that does not involve opening the skull, such as an operation on the arteries in the neck. It helps the surgical team detect early warning signs that blood flow or oxygen to the brain may be reduced during the operation, so they can respond quickly. The monitoring continues throughout the relevant portion of the surgery.

Rates data updated July 2026.

How much does Brain Wave Monitoring During Non-Brain Surgery cost?

$195

Typical negotiated rate. In Maryland, July 2026.

Insurers have agreed to pay about $195 for this service. Most negotiated rates run $182 to $224.

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

Professionalmedian $195 · 10th to 90th $158 to $302
$100$200$500$1Kprofessional $195

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
Professional
Modifier
Global
Typical Low
$162.18
Median
$194.98
Typical High
$263.03
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$64.57
Median
$186.21
Typical High
$223.87
Cigna
Setting
Professional
Modifier
Global
Typical Low
$147.91
Median
$263.03
Typical High
$524.81
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$158.49
Median
$229.09
Typical High
$309.03
Kaiser Permanente
Setting
Professional
Modifier
26 · Professional part
Typical Low
$41.69
Median
$58.88
Typical High
$83.18
United
Setting
Professional
Modifier
Global
Typical Low
$131.83
Median
$239.88
Typical High
$478.63
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$173.78
Median
$208.93
Typical High
$316.23

Where Maryland sits

The same service costs 2.3 times more in Minnesota than in Kentucky. 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.

Maryland· 43rd of 51

$195

MN $417KY $182

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.