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Procedure price report · Laboratory - Chemistry and Hematology

Western blot protein test with antibody probe, each band

CPT 84182the billing code this page is about

A Western blot test that uses an antibody probe to identify a specific protein band in blood or another body fluid; the charge applies to each band identified.

Hospitals typically charge $87 cash for this outpatient procedure — the median across 2,448 hospitals that filed a usable cash price; the average of the middle 60% is $102. Most fall between $39 and $221 (20th–80th percentile).

Hospitals
2,448
States
50
Filings dated
Nov 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 2,448 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
$29$45$87$191$348

The most expensive tenth of hospitals charges at least 12× what the cheapest tenth charges ($29 vs $348).

How the prices are spread

$21 – $29: 129 hospitals$21$29 – $40: 282 hospitals$40 – $56: 291 hospitals$40$56 – $78: 248 hospitals$78 – $108: 328 hospitals$78$108 – $150: 271 hospitals$150 – $208: 228 hospitals$150$208 – $289: 243 hospitals$289 – $401: 122 hospitals$289$401 – $558: 71 hospitals$401median $87price bands are equal on a log scale
Hospitals per price band (2,213 of 2,448 — the bands cover the 5th to 95th percentile)
FromToHospitals
$21$29129
$29$40282
$40$56291
$56$78248
$78$108328
$108$150271
$150$208228
$208$289243
$289$401122
$401$55871

By state

The median cash price in each state, against the national median of $87.

Alaska: median $161 across 11 hospitalsAK$161Maine: median $61 across 25 hospitalsME$61Vermont: median $151 across 12 hospitalsVT$151New Hampshire: median $95 across 17 hospitalsNH$95Washington: median $105 across 56 hospitalsWA$105Idaho: median $79 across 14 hospitalsID$79Montana: median $151 across 14 hospitalsMT$151North Dakota: median $87 across 22 hospitalsND$87Minnesota: median $103 across 69 hospitalsMN$103Illinois: median $115 across 104 hospitalsIL$115Wisconsin: median $143 across 89 hospitalsWI$143Michigan: median $70 across 58 hospitalsMI$70New York: median $71 across 91 hospitalsNY$71Massachusetts: median $102 across 44 hospitalsMA$102Oregon: median $73 across 30 hospitalsOR$73Nevada: median $94 across 13 hospitalsNV$94Wyoming: median $67 across 11 hospitalsWY$67South Dakota: 7 hospitals filed a usable price — fewer than 10, so no figureSDIowa: median $110 across 53 hospitalsIA$110Indiana: median $57 across 82 hospitalsIN$57Ohio: median $100 across 116 hospitalsOH$100Pennsylvania: median $122 across 112 hospitalsPA$122New Jersey: median $34 across 56 hospitalsNJ$34Connecticut: median $62 across 16 hospitalsCT$62Rhode Island: 9 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $52 across 97 hospitalsCA$52Utah: median $161 across 35 hospitalsUT$161Colorado: median $60 across 55 hospitalsCO$60Nebraska: median $85 across 46 hospitalsNE$85Missouri: median $88 across 64 hospitalsMO$88Kentucky: median $92 across 41 hospitalsKY$92West Virginia: median $28 across 30 hospitalsWV$28Virginia: median $107 across 69 hospitalsVA$107Maryland: median $204 across 39 hospitalsMD$204Delaware: 7 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $81 across 33 hospitalsAZ$81New Mexico: median $157 across 18 hospitalsNM$157Kansas: median $120 across 34 hospitalsKS$120Arkansas: median $35 across 29 hospitalsAR$35Tennessee: median $32 across 60 hospitalsTN$32North Carolina: median $98 across 69 hospitalsNC$98South Carolina: median $229 across 44 hospitalsSC$229Oklahoma: median $66 across 48 hospitalsOK$66Louisiana: median $53 across 37 hospitalsLA$53Mississippi: median $39 across 36 hospitalsMS$39Alabama: median $137 across 30 hospitalsAL$137Georgia: median $81 across 81 hospitalsGA$81Hawaii: median $103 across 12 hospitalsHI$103Texas: median $85 across 175 hospitalsTX$85Florida: median $57 across 128 hospitalsFL$57
Cash price by state, most expensive first. National median $87. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
South Carolina SC44$229+162%$63 – $558
Maryland MD39$204+134%$150 – $244
Utah UT35$161+85%$53 – $190
Alaska AK11$161+85%$105 – $264
New Mexico NM18$157+80%$69 – $334
Vermont VT12$151+74%$131 – $325
Montana MT14$151+73%$48 – $223
Wisconsin WI89$143+64%$53 – $240
Alabama AL30$137+57%$44 – $355
Pennsylvania PA112$122+39%$34 – $256
Kansas KS34$120+38%$74 – $297
Illinois IL104$115+32%$47 – $254
Iowa IA53$110+26%$46 – $238
Virginia VA69$107+22%$26 – $229
Washington WA56$105+21%$52 – $181
Minnesota MN69$103+18%$43 – $204
Hawaii HI12$103+18%$49 – $246
Massachusetts MA44$102+17%$40 – $173
Ohio OH116$100+15%$46 – $240
North Carolina NC69$98+12%$46 – $269
New Hampshire NH17$95+9%$35 – $261
Nevada NV13$94+8%$29 – $154
Kentucky KY41$92+5%$41 – $212
Missouri MO64$88+1%$39 – $192
North Dakota ND22$870%$51 – $144
Nebraska NE46$85−3%$47 – $253
Texas TX175$85−3%$51 – $216
Arizona AZ33$81−7%$31 – $202
Georgia GA81$81−7%$60 – $300
Idaho ID14$79−9%$29 – $118
Oregon OR30$73−17%$35 – $111
New York NY91$71−18%$30 – $212
Michigan MI58$70−20%$31 – $106
Wyoming WY11$67−24%$54 – $91
Oklahoma OK48$66−25%$32 – $178
Connecticut CT16$62−29%$54 – $137
Maine ME25$61−30%$29 – $186
Colorado CO55$60−32%$23 – $199
Florida FL128$57−34%$37 – $208
Indiana IN82$57−35%$36 – $246
Louisiana LA37$53−39%$23 – $174
California CA97$52−40%$34 – $138
Mississippi MS36$39−55%$23 – $82
Arkansas AR29$35−59%$20 – $176
New Jersey NJ56$34−61%$32 – $197
Tennessee TN60$32−64%$23 – $97
West Virginia WV30$28−68%$28 – $89
Rhode Island RI9not enough hospitals filed a usable price
Delaware DE7not enough hospitals filed a usable price
South Dakota SD7not 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 $87.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care1,900$85$35 – $216
Children’s44$107$39 – $294
Critical access495$109$50 – $229
Ownership
For-profit317$100$41 – $377
Government336$88$41 – $238
Non-profit1,786$85$37 – $214
System affiliation
Part of a system2,085$86$38 – $219
Independent363$94$43 – $240

Cash price vs list price

Median list price (chargemaster)$145
Median cash price$87
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

1,729 hospitals filed a usable inpatient cash price for this code. The median is $86 and the average of the middle 60% is $100; most fall between $40 and $213.

Cash price percentiles, inpatient, across 1,729 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
$27$46$86$182$302

The most expensive tenth of hospitals charges at least 11× what the cheapest tenth charges ($27 vs $302).

Of the 1,906 hospitals that filed this code inpatient, 1,729 gave a usable cash price; 110 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 67 a list price only.

How complete is this

2,448 of the 3,956 hospitals with a price file in our corpus (62%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 2,658 hospitals that filed this code at all gave us
Usable cash price — counted2,448
Cash price carrying a plausibility flag — shown on the compare tool, excluded here137
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded0
An estimate rather than a filed cash price — excluded1
A list price only, no cash figure — excluded72
Hospitals that filed this code2,658

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 Anna-1 Immunoblot, CSF.

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, “Western blot protein test with antibody probe, each band (CPT 84182) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-84182-western-blot-protein-test-with-antibody-probe-each-band