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Procedure price report · Electroencephalogram (EEG)

Computer analysis of EEG brain wave recording

CPT 95957the billing code this page is about

Digital computer processing of a brain wave recording, such as mapping the location of abnormal activity, in addition to the recording itself.

Hospitals typically charge $482 cash for this outpatient procedure — the median across 808 hospitals that filed a usable cash price; the average of the middle 60% is $502. Most fall between $196 and $862 (20th–80th percentile).

Hospitals
808
States
50
Filings dated
Mar 2023 – Sep 2026
Computed
September 25, 2026
Prices checked
through September 25, 2026

Median: half of hospitals filed less, half more — and it is a price some hospital actually filed. Average of the middle 60%: the mean of the prices between the 20th and 80th percentiles. We never publish the plain average, the lowest or the highest price: the extremes in hospital price files are chargemaster artefacts, not prices anyone pays.

What hospitals charge, from cheapest to most expensive

Cash price percentiles, outpatient, across 808 hospitals. Each figure is a price a hospital filed. 10th: one in ten hospitals charges less; 25th: a quarter charge less; Median: half charge less; 75th: three quarters charge less; 90th: nine in ten charge less.
10th25thMedian75th90th
$133$235$482$750$1,453

The most expensive tenth of hospitals charges at least 11× what the cheapest tenth charges ($133 vs $1,453).

How the prices are spread

$110 – $150: 72 hospitals$110$150 – $204: 60 hospitals$204 – $277: 65 hospitals$204$277 – $377: 60 hospitals$377 – $513: 124 hospitals$377$513 – $699: 133 hospitals$699 – $951: 113 hospitals$699$951 – $1,294: 49 hospitals$1,294 – $1,761: 29 hospitals$1,294$1,761 – $2,396: 26 hospitals$1,761median $482price bands are equal on a log scale
Hospitals per price band (731 of 808 — the bands cover the 5th to 95th percentile)
FromToHospitals
$110$15072
$150$20460
$204$27765
$277$37760
$377$513124
$513$699133
$699$951113
$951$1,29449
$1,294$1,76129
$1,761$2,39626

By state

The median cash price in each state, against the national median of $482.

Alaska: 5 hospitals filed a usable price — fewer than 10, so no figureAKMaine: 2 hospitals filed a usable price — fewer than 10, so no figureMEVermont: 2 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: 6 hospitals filed a usable price — fewer than 10, so no figureNHWashington: median $396 across 23 hospitalsWA$396Idaho: 9 hospitals filed a usable price — fewer than 10, so no figureIDMontana: 1 hospital filed a usable price — fewer than 10, so no figureMTNorth Dakota: 1 hospital filed a usable price — fewer than 10, so no figureNDMinnesota: 3 hospitals filed a usable price — fewer than 10, so no figureMNIllinois: median $487 across 29 hospitalsIL$487Wisconsin: median $361 across 10 hospitalsWI$361Michigan: median $401 across 19 hospitalsMI$401New York: median $839 across 19 hospitalsNY$839Massachusetts: 7 hospitals filed a usable price — fewer than 10, so no figureMAOregon: 8 hospitals filed a usable price — fewer than 10, so no figureORNevada: 3 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 2 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: 5 hospitals filed a usable price — fewer than 10, so no figureSDIowa: median $248 across 19 hospitalsIA$248Indiana: median $451 across 32 hospitalsIN$451Ohio: median $302 across 34 hospitalsOH$302Pennsylvania: median $120 across 28 hospitalsPA$120New Jersey: median $665 across 16 hospitalsNJ$665Connecticut: 6 hospitals filed a usable price — fewer than 10, so no figureCTRhode Island: 1 hospital filed a usable price — fewer than 10, so no figureRICalifornia: median $698 across 70 hospitalsCA$698Utah: median $1,500 across 12 hospitalsUT$1,500Colorado: median $965 across 24 hospitalsCO$965Nebraska: 7 hospitals filed a usable price — fewer than 10, so no figureNEMissouri: 4 hospitals filed a usable price — fewer than 10, so no figureMOKentucky: median $416 across 11 hospitalsKY$416West Virginia: 2 hospitals filed a usable price — fewer than 10, so no figureWVVirginia: median $463 across 21 hospitalsVA$463Maryland: 5 hospitals filed a usable price — fewer than 10, so no figureMDDelaware: 2 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $340 across 21 hospitalsAZ$340New Mexico: 3 hospitals filed a usable price — fewer than 10, so no figureNMKansas: median $405 across 11 hospitalsKS$405Arkansas: 8 hospitals filed a usable price — fewer than 10, so no figureARTennessee: median $147 across 18 hospitalsTN$147North Carolina: 7 hospitals filed a usable price — fewer than 10, so no figureNCSouth Carolina: median $862 across 22 hospitalsSC$862Oklahoma: median $196 across 25 hospitalsOK$196Louisiana: median $225 across 22 hospitalsLA$225Mississippi: median $205 across 12 hospitalsMS$205Alabama: 9 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: median $142 across 28 hospitalsGA$142Hawaii: 4 hospitals filed a usable price — fewer than 10, so no figureHITexas: median $642 across 108 hospitalsTX$642Florida: median $718 across 62 hospitalsFL$718
Cash price by state, most expensive first. National median $482. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Utah UT12$1,500+211%$1,500 – $1,500
Colorado CO24$965+100%$415 – $2,270
South Carolina SC22$862+79%$512 – $862
New York NY19$839+74%$234 – $1,440
Florida FL62$718+49%$311 – $1,845
California CA70$698+45%$315 – $800
New Jersey NJ16$665+38%$191 – $2,402
Texas TX108$642+33%$407 – $952
Illinois IL29$487+1%$149 – $783
Virginia VA21$463−4%$388 – $659
Indiana IN32$451−6%$353 – $862
Kentucky KY11$416−14%$302 – $623
Kansas KS11$405−16%$110 – $578
Michigan MI19$401−17%$279 – $641
Washington WA23$396−18%$206 – $506
Wisconsin WI10$361−25%$361 – $531
Arizona AZ21$340−29%$214 – $627
Ohio OH34$302−37%$175 – $627
Iowa IA19$248−49%$188 – $262
Louisiana LA22$225−53%$112 – $396
Mississippi MS12$205−57%$176 – $241
Oklahoma OK25$196−59%$111 – $352
Tennessee TN18$147−70%$126 – $279
Georgia GA28$142−71%$142 – $2,811
Pennsylvania PA28$120−75%$64 – $761
Alabama AL9not enough hospitals filed a usable price
Idaho ID9not enough hospitals filed a usable price
Arkansas AR8not enough hospitals filed a usable price
Oregon OR8not enough hospitals filed a usable price
Massachusetts MA7not enough hospitals filed a usable price
North Carolina NC7not enough hospitals filed a usable price
Nebraska NE7not enough hospitals filed a usable price
Connecticut CT6not enough hospitals filed a usable price
New Hampshire NH6not enough hospitals filed a usable price
Alaska AK5not enough hospitals filed a usable price
Maryland MD5not enough hospitals filed a usable price
South Dakota SD5not enough hospitals filed a usable price
Hawaii HI4not enough hospitals filed a usable price
Missouri MO4not enough hospitals filed a usable price
Minnesota MN3not enough hospitals filed a usable price
New Mexico NM3not enough hospitals filed a usable price
Nevada NV3not enough hospitals filed a usable price
Delaware DE2not enough hospitals filed a usable price
Maine ME2not enough hospitals filed a usable price
Vermont VT2not enough hospitals filed a usable price
West Virginia WV2not enough hospitals filed a usable price
Wyoming WY2not enough hospitals filed a usable price
Montana MT1not enough hospitals filed a usable price
North Dakota ND1not enough hospitals filed a usable price
Rhode Island RI1not enough hospitals filed a usable price

Hospitals like yours

The same distribution cut by the kind of hospital. Hospital type and ownership come from CMS; a hospital counts as part of a system when its price file is shared with at least one other hospital under the same brand. The national median is $482.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care693$482$195 – $862
Children’s33$594$384 – $1,350
Critical access77$449$199 – $775
Ownership
For-profit127$703$240 – $1,209
Government97$402$149 – $602
Non-profit579$482$203 – $850
System affiliation
Part of a system710$515$195 – $862
Independent98$401$203 – $839

Cash price vs list price

Median list price (chargemaster)$858
Median cash price$482
Cash as a share of list, median hospital60%

At the typical hospital, asking for the cash price cuts the list price by about 40%. The share is the median of each hospital’s own cash ÷ list ratio, over hospitals that filed both — not the ratio of the two medians above.

The same procedure, inpatient

607 hospitals filed a usable inpatient cash price for this code. The median is $482 and the average of the middle 60% is $492; most fall between $189 and $850.

Cash price percentiles, inpatient, across 607 hospitals. Each figure is a price a hospital filed. 10th: one in ten hospitals charges less; 25th: a quarter charge less; Median: half charge less; 75th: three quarters charge less; 90th: nine in ten charge less.
10th25thMedian75th90th
$132$226$482$745$1,295

The most expensive tenth of hospitals charges at least 9.8× what the cheapest tenth charges ($132 vs $1,295).

Of the 654 hospitals that filed this code inpatient, 607 gave a usable cash price; 15 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 32 a list price only.

How complete is this

808 of the 3,956 hospitals with a price file in our corpus (20%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 891 hospitals that filed this code at all gave us
Usable cash price — counted808
Cash price carrying a plausibility flag — shown on the compare tool, excluded here17
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded0
An estimate rather than a filed cash price — excluded0
A list price only, no cash figure — excluded66
Hospitals that filed this code891

Sections not shown for this setting

  • Against Medicare: Medicare has no separately payable national outpatient (OPPS) rate for this code, so there is nothing honest to compare against.
  • Since our last snapshot: there is no earlier snapshot at least 90 days older than this one yet.

We last checked these hospitals’ price files for changes between September 4, 2026 and September 25, 2026; the figures were computed September 25, 2026 from filings loaded through September 25, 2026. The percentiles and averages use only the “counted” row.

Related procedures

Part of the Electroencephalogram (EEG) family.

Hospitals file this code under descriptions such as Digital Analysis Electroencephalogram|TECHNICAL COMPONENT.

Method

Source
The machine-readable price files every U.S. hospital is required by CMS to publish, parsed per hospital. Nothing is surveyed, sampled or modelled.
What counts
One cash (self-pay) price per hospital for this code and setting. A hospital’s own filing can rule its number out — a placeholder, a “not applicable” note, a list price standing in for cash — and our plausibility checks can flag a price far below what every other hospital files. Both kinds are disclosed above and excluded from the statistics; on the compare tool a flagged price is still shown.
Statistics
Percentiles are discrete: each is a price some hospital filed. The average is the mean of the prices between the 20th and 80th percentiles. We never publish the plain mean, the minimum or the maximum. A state needs 10 hospitals and a segment 20 to show a figure; otherwise the row shows its count and no number. Medicare is the national unadjusted OPPS rate where one exists.
Names
Procedure names on these pages are our own plain-language titles, not the AMA’s copyrighted CPT descriptors. The code is the identity.

The full rules — sources, statistics, thresholds, limitations — are on the methodology page.

Download this page’s figures: JSON · CSV. Aggregates only — the per-hospital prices are on the compare tool.

Cite: HospitalRates.com, “Computer analysis of EEG brain wave recording (CPT 95957) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-95957-computer-analysis-of-eeg-brain-wave-recording