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Procedure price report · Laboratory - Chemistry and Hematology

Unlisted laboratory test using electrophoresis

CPT 82664the billing code this page is about

A laboratory test that separates substances in a sample by passing an electric current through it, used when no specific code describes the test performed.

Hospitals typically charge $108 cash for this outpatient procedure — the median across 1,720 hospitals that filed a usable cash price; the average of the middle 60% is $119. Most fall between $54 and $239 (20th–80th percentile).

Hospitals
1,720
States
50
Filings dated
Jan 2024 – 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 1,720 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
$39$62$108$198$354

The most expensive tenth of hospitals charges at least 9.2× what the cheapest tenth charges ($39 vs $354).

How the prices are spread

$29 – $38: 85 hospitals$29$38 – $51: 112 hospitals$51 – $67: 189 hospitals$51$67 – $88: 229 hospitals$88 – $116: 200 hospitals$88$116 – $153: 242 hospitals$153 – $201: 155 hospitals$153$201 – $266: 136 hospitals$266 – $350: 112 hospitals$266$350 – $462: 89 hospitals$350median $108price bands are equal on a log scale
Hospitals per price band (1,549 of 1,720 — the bands cover the 5th to 95th percentile)
FromToHospitals
$29$3885
$38$51112
$51$67189
$67$88229
$88$116200
$116$153242
$153$201155
$201$266136
$266$350112
$350$46289

By state

The median cash price in each state, against the national median of $108.

Alaska: 5 hospitals filed a usable price — fewer than 10, so no figureAKMaine: 5 hospitals filed a usable price — fewer than 10, so no figureMEVermont: 7 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: median $137 across 12 hospitalsNH$137Washington: median $182 across 31 hospitalsWA$182Idaho: median $143 across 11 hospitalsID$143Montana: 7 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: median $160 across 11 hospitalsND$160Minnesota: median $89 across 49 hospitalsMN$89Illinois: median $108 across 74 hospitalsIL$108Wisconsin: median $178 across 66 hospitalsWI$178Michigan: median $74 across 43 hospitalsMI$74New York: median $108 across 66 hospitalsNY$108Massachusetts: median $155 across 34 hospitalsMA$155Oregon: median $128 across 18 hospitalsOR$128Nevada: median $185 across 12 hospitalsNV$185Wyoming: 9 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: 4 hospitals filed a usable price — fewer than 10, so no figureSDIowa: median $86 across 35 hospitalsIA$86Indiana: median $88 across 62 hospitalsIN$88Ohio: median $123 across 95 hospitalsOH$123Pennsylvania: median $170 across 80 hospitalsPA$170New Jersey: median $68 across 44 hospitalsNJ$68Connecticut: 9 hospitals filed a usable price — fewer than 10, so no figureCTRhode Island: 7 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $231 across 56 hospitalsCA$231Utah: median $106 across 30 hospitalsUT$106Colorado: median $137 across 42 hospitalsCO$137Nebraska: median $138 across 36 hospitalsNE$138Missouri: median $112 across 34 hospitalsMO$112Kentucky: median $102 across 32 hospitalsKY$102West Virginia: median $51 across 26 hospitalsWV$51Virginia: median $98 across 46 hospitalsVA$98Maryland: median $66 across 23 hospitalsMD$66Delaware: 6 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $349 across 23 hospitalsAZ$349New Mexico: 6 hospitals filed a usable price — fewer than 10, so no figureNMKansas: median $121 across 27 hospitalsKS$121Arkansas: median $122 across 18 hospitalsAR$122Tennessee: median $52 across 41 hospitalsTN$52North Carolina: median $120 across 37 hospitalsNC$120South Carolina: median $117 across 41 hospitalsSC$117Oklahoma: median $108 across 43 hospitalsOK$108Louisiana: median $65 across 31 hospitalsLA$65Mississippi: median $52 across 20 hospitalsMS$52Alabama: median $65 across 17 hospitalsAL$65Georgia: median $75 across 65 hospitalsGA$75Hawaii: 5 hospitals filed a usable price — fewer than 10, so no figureHITexas: median $136 across 123 hospitalsTX$136Florida: median $46 across 96 hospitalsFL$46
Cash price by state, most expensive first. National median $108. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Arizona AZ23$349+223%$74 – $349
California CA56$231+114%$36 – $375
Nevada NV12$185+71%$73 – $321
Washington WA31$182+69%$93 – $268
Wisconsin WI66$178+65%$105 – $254
Pennsylvania PA80$170+57%$70 – $434
North Dakota ND11$160+48%$140 – $173
Massachusetts MA34$155+44%$118 – $202
Idaho ID11$143+32%$143 – $158
Nebraska NE36$138+28%$68 – $209
New Hampshire NH12$137+27%$43 – $373
Colorado CO42$137+27%$62 – $517
Texas TX123$136+26%$67 – $314
Oregon OR18$128+19%$54 – $187
Ohio OH95$123+14%$96 – $276
Arkansas AR18$122+13%$71 – $184
Kansas KS27$121+12%$67 – $173
North Carolina NC37$120+11%$92 – $372
South Carolina SC41$117+8%$63 – $148
Missouri MO34$112+4%$62 – $152
New York NY66$1080%$62 – $198
Illinois IL74$1080%$50 – $246
Oklahoma OK43$1080%$60 – $148
Utah UT30$106−2%$92 – $125
Kentucky KY32$102−6%$59 – $207
Virginia VA46$98−9%$21 – $189
Minnesota MN49$89−18%$54 – $244
Indiana IN62$88−19%$49 – $157
Iowa IA35$86−20%$84 – $151
Georgia GA65$75−30%$51 – $208
Michigan MI43$74−32%$34 – $137
New Jersey NJ44$68−37%$62 – $186
Maryland MD23$66−39%$45 – $78
Alabama AL17$65−40%$57 – $229
Louisiana LA31$65−40%$40 – $98
Tennessee TN41$52−52%$28 – $106
Mississippi MS20$52−52%$32 – $77
West Virginia WV26$51−53%$51 – $183
Florida FL96$46−57%$34 – $185
Connecticut CT9not enough hospitals filed a usable price
Wyoming WY9not enough hospitals filed a usable price
Montana MT7not enough hospitals filed a usable price
Rhode Island RI7not enough hospitals filed a usable price
Vermont VT7not enough hospitals filed a usable price
Delaware DE6not enough hospitals filed a usable price
New Mexico NM6not enough hospitals filed a usable price
Alaska AK5not enough hospitals filed a usable price
Hawaii HI5not enough hospitals filed a usable price
Maine ME5not enough hospitals filed a usable price
South Dakota SD4not 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 $108.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care1,370$106$53 – $237
Children’s36$134$68 – $264
Critical access307$128$67 – $244
Ownership
For-profit233$108$47 – $337
Government219$97$54 – $173
Non-profit1,261$112$55 – $231
System affiliation
Part of a system1,483$108$54 – $244
Independent237$118$58 – $208

Cash price vs list price

Median list price (chargemaster)$193
Median cash price$108
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

1,232 hospitals filed a usable inpatient cash price for this code. The median is $113 and the average of the middle 60% is $129; most fall between $57 and $254.

Cash price percentiles, inpatient, across 1,232 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
$39$68$113$208$356

The most expensive tenth of hospitals charges at least 9.2× what the cheapest tenth charges ($39 vs $356).

Of the 1,362 hospitals that filed this code inpatient, 1,232 gave a usable cash price; 66 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 64 a list price only.

How complete is this

1,720 of the 3,956 hospitals with a price file in our corpus (43%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 1,875 hospitals that filed this code at all gave us
Usable cash price — counted1,720
Cash price carrying a plausibility flag — shown on the compare tool, excluded here85
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 — excluded70
Hospitals that filed this code1,875

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 Laboratory - Chemistry and Hematology family.

Hospitals file this code under descriptions such as HC Electrophrs X2 Not Spc(Hgbl2).

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, “Unlisted laboratory test using electrophoresis (CPT 82664) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-82664-unlisted-laboratory-test-using-electrophoresis