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Procedure price report · Other gastrointestinal diagnostic procedures

Acid reflux test with nasal tube pH probe

CPT 91034the billing code this page is about

A thin tube placed through the nose holds a sensor in the esophagus that records acid levels over time; includes interpretation and report.

Hospitals typically charge $1,089 cash for this outpatient procedure — the median across 1,224 hospitals that filed a usable cash price; the average of the middle 60% is $1,140. Most fall between $468 and $2,251 (20th–80th percentile).

Hospitals
1,224
States
50
Filings dated
Sep 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 1,224 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
$249$535$1,089$1,931$3,223

The most expensive tenth of hospitals charges at least 13× what the cheapest tenth charges ($249 vs $3,223).

How the prices are spread

$112 – $161: 33 hospitals$112$161 – $231: 18 hospitals$231 – $333: 50 hospitals$231$333 – $478: 95 hospitals$478 – $688: 159 hospitals$478$688 – $990: 171 hospitals$990 – $1,423: 199 hospitals$990$1,423 – $2,047: 171 hospitals$2,047 – $2,945: 131 hospitals$2,047$2,945 – $4,235: 80 hospitals$2,945median $1,089price bands are equal on a log scale
Hospitals per price band (1,107 of 1,224 — the bands cover the 5th to 95th percentile)
FromToHospitals
$112$16133
$161$23118
$231$33350
$333$47895
$478$688159
$688$990171
$990$1,423199
$1,423$2,047171
$2,047$2,945131
$2,945$4,23580

Against Medicare

Medicare pays (OPPS 2026, national rate)$381
Median cash price$1,089
Cash as a multiple of Medicare2.9×

The Medicare figure is the national unadjusted OPPS rate for this code — what Medicare itself pays a hospital before local wage adjustment. It is a benchmark, not a price anyone is charged.

By state

The median cash price in each state, against the national median of $1,089.

Alaska: 4 hospitals filed a usable price — fewer than 10, so no figureAKMaine: 5 hospitals filed a usable price — fewer than 10, so no figureMEVermont: 2 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: 8 hospitals filed a usable price — fewer than 10, so no figureNHWashington: median $885 across 26 hospitalsWA$885Idaho: median $1,475 across 10 hospitalsID$1,475Montana: 4 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: 6 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: median $486 across 14 hospitalsMN$486Illinois: median $589 across 36 hospitalsIL$589Wisconsin: median $759 across 58 hospitalsWI$759Michigan: median $535 across 41 hospitalsMI$535New York: median $628 across 40 hospitalsNY$628Massachusetts: median $1,218 across 14 hospitalsMA$1,218Oregon: median $428 across 12 hospitalsOR$428Nevada: 6 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 3 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: 7 hospitals filed a usable price — fewer than 10, so no figureSDIowa: median $421 across 21 hospitalsIA$421Indiana: median $986 across 40 hospitalsIN$986Ohio: median $1,835 across 62 hospitalsOH$1,835Pennsylvania: median $723 across 57 hospitalsPA$723New Jersey: median $588 across 41 hospitalsNJ$588Connecticut: median $1,116 across 11 hospitalsCT$1,116Rhode Island: 6 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $2,194 across 109 hospitalsCA$2,194Utah: median $934 across 24 hospitalsUT$934Colorado: median $1,779 across 18 hospitalsCO$1,779Nebraska: 9 hospitals filed a usable price — fewer than 10, so no figureNEMissouri: median $680 across 29 hospitalsMO$680Kentucky: median $960 across 29 hospitalsKY$960West Virginia: 8 hospitals filed a usable price — fewer than 10, so no figureWVVirginia: median $780 across 14 hospitalsVA$780Maryland: 3 hospitals filed a usable price — fewer than 10, so no figureMDDelaware: 2 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $448 across 33 hospitalsAZ$448New Mexico: median $1,158 across 10 hospitalsNM$1,158Kansas: median $259 across 10 hospitalsKS$259Arkansas: 8 hospitals filed a usable price — fewer than 10, so no figureARTennessee: median $518 across 21 hospitalsTN$518North Carolina: median $1,111 across 38 hospitalsNC$1,111South Carolina: median $1,449 across 27 hospitalsSC$1,449Oklahoma: median $471 across 18 hospitalsOK$471Louisiana: median $366 across 20 hospitalsLA$366Mississippi: median $492 across 14 hospitalsMS$492Alabama: median $728 across 20 hospitalsAL$728Georgia: median $3,479 across 51 hospitalsGA$3,479Hawaii: 5 hospitals filed a usable price — fewer than 10, so no figureHITexas: median $1,365 across 111 hospitalsTX$1,365Florida: median $1,601 across 59 hospitalsFL$1,601
Cash price by state, most expensive first. National median $1,089. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Georgia GA51$3,479+220%$1,899 – $4,235
California CA109$2,194+102%$1,224 – $3,250
Ohio OH62$1,835+69%$760 – $3,127
Colorado CO18$1,779+63%$976 – $2,468
Florida FL59$1,601+47%$730 – $4,399
Idaho ID10$1,475+36%$619 – $1,475
South Carolina SC27$1,449+33%$881 – $1,931
Texas TX111$1,365+25%$780 – $2,012
Massachusetts MA14$1,218+12%$674 – $3,323
New Mexico NM10$1,158+6%$549 – $1,536
Connecticut CT11$1,116+2%$772 – $1,981
North Carolina NC38$1,111+2%$599 – $1,573
Indiana IN40$986−9%$382 – $2,011
Kentucky KY29$960−12%$473 – $2,011
Utah UT24$934−14%$905 – $1,131
Washington WA26$885−19%$749 – $1,879
Virginia VA14$780−28%$124 – $1,089
Wisconsin WI58$759−30%$644 – $1,500
Alabama AL20$728−33%$214 – $1,429
Pennsylvania PA57$723−34%$441 – $3,850
Missouri MO29$680−38%$420 – $1,516
New York NY40$628−42%$410 – $1,125
Illinois IL36$589−46%$102 – $2,485
New Jersey NJ41$588−46%$483 – $1,416
Michigan MI41$535−51%$60 – $1,267
Tennessee TN21$518−52%$405 – $691
Mississippi MS14$492−55%$374 – $566
Minnesota MN14$486−55%$242 – $902
Oklahoma OK18$471−57%$97 – $1,030
Arizona AZ33$448−59%$265 – $1,966
Oregon OR12$428−61%$88 – $1,641
Iowa IA21$421−61%$115 – $1,338
Louisiana LA20$366−66%$244 – $795
Kansas KS10$259−76%$214 – $1,304
Nebraska NE9not enough hospitals filed a usable price
Arkansas AR8not enough hospitals filed a usable price
New Hampshire NH8not enough hospitals filed a usable price
West Virginia WV8not enough hospitals filed a usable price
South Dakota SD7not enough hospitals filed a usable price
North Dakota ND6not enough hospitals filed a usable price
Nevada NV6not enough hospitals filed a usable price
Rhode Island RI6not enough hospitals filed a usable price
Hawaii HI5not enough hospitals filed a usable price
Maine ME5not enough hospitals filed a usable price
Alaska AK4not enough hospitals filed a usable price
Montana MT4not enough hospitals filed a usable price
Maryland MD3not enough hospitals filed a usable price
Wyoming WY3not enough hospitals filed a usable price
Delaware DE2not enough hospitals filed a usable price
Vermont VT2not 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 $1,089.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care1,048$1,115$471 – $2,251
Children’s36$1,221$484 – $3,089
Critical access134$759$345 – $1,518
Ownership
For-profit148$1,415$518 – $3,616
Government144$1,081$504 – $1,931
Non-profit926$994$441 – $2,062
System affiliation
Part of a system1,087$1,111$472 – $2,258
Independent137$854$417 – $1,650

Cash price vs list price

Median list price (chargemaster)$1,966
Median cash price$1,089
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

872 hospitals filed a usable inpatient cash price for this code. The median is $1,267 and the average of the middle 60% is $1,267; most fall between $552 and $2,271.

Cash price percentiles, inpatient, across 872 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
$308$646$1,267$2,012$3,479

The most expensive tenth of hospitals charges at least 11× what the cheapest tenth charges ($308 vs $3,479).

Of the 932 hospitals that filed this code inpatient, 872 gave a usable cash price; 32 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 28 a list price only.

How complete is this

1,224 of the 3,956 hospitals with a price file in our corpus (31%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 1,299 hospitals that filed this code at all gave us
Usable cash price — counted1,224
Cash price carrying a plausibility flag — shown on the compare tool, excluded here43
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded0
An estimate rather than a filed cash price — excluded2
A list price only, no cash figure — excluded30
Hospitals that filed this code1,299

Sections not shown for this setting

  • 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 Other gastrointestinal diagnostic procedures family.

Hospitals file this code under descriptions such as Gastroesophag Reflx Test W/Cath Ph Eltrd Plcmt.

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, “Acid reflux test with nasal tube pH probe (CPT 91034) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-91034-acid-reflux-test-with-nasal-tube-ph-probe