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Procedure price report · Laboratory - Chemistry and Hematology

Blood test for free insulin

CPT 83527the billing code this page is about

Measures the unbound (free) portion of insulin in a blood sample.

Hospitals typically charge $50 cash for this outpatient procedure — the median across 1,929 hospitals that filed a usable cash price; the average of the middle 60% is $54. Most fall between $22 and $104 (20th–80th percentile).

Hospitals
1,929
States
50
Filings dated
Mar 2023 – Sep 2026
Computed
September 25, 2026
Prices checked
through September 24, 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 1,929 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
$15$25$50$90$163

The most expensive tenth of hospitals charges at least 11× what the cheapest tenth charges ($15 vs $163).

How the prices are spread

$10 – $14: 78 hospitals$10$14 – $19: 152 hospitals$19 – $26: 158 hospitals$19$26 – $35: 217 hospitals$35 – $47: 212 hospitals$35$47 – $64: 295 hospitals$64 – $86: 218 hospitals$64$86 – $117: 193 hospitals$117 – $158: 116 hospitals$117$158 – $214: 98 hospitals$158median $50price bands are equal on a log scale
Hospitals per price band (1,737 of 1,929 — the bands cover the 5th to 95th percentile)
FromToHospitals
$10$1478
$14$19152
$19$26158
$26$35217
$35$47212
$47$64295
$64$86218
$86$117193
$117$158116
$158$21498

By state

The median cash price in each state, against the national median of $50.

Alaska: median $45 across 11 hospitalsAK$45Maine: median $31 across 10 hospitalsME$31Vermont: 6 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: 9 hospitals filed a usable price — fewer than 10, so no figureNHWashington: median $48 across 49 hospitalsWA$48Idaho: median $42 across 10 hospitalsID$42Montana: median $82 across 10 hospitalsMT$82North Dakota: median $65 across 17 hospitalsND$65Minnesota: median $114 across 21 hospitalsMN$114Illinois: median $77 across 90 hospitalsIL$77Wisconsin: median $92 across 64 hospitalsWI$92Michigan: median $20 across 47 hospitalsMI$20New York: median $28 across 76 hospitalsNY$28Massachusetts: median $59 across 33 hospitalsMA$59Oregon: median $24 across 23 hospitalsOR$24Nevada: median $64 across 10 hospitalsNV$64Wyoming: 7 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: median $60 across 11 hospitalsSD$60Iowa: median $55 across 39 hospitalsIA$55Indiana: median $39 across 67 hospitalsIN$39Ohio: median $56 across 117 hospitalsOH$56Pennsylvania: median $63 across 85 hospitalsPA$63New Jersey: median $15 across 50 hospitalsNJ$15Connecticut: median $48 across 12 hospitalsCT$48Rhode Island: 7 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $29 across 67 hospitalsCA$29Utah: median $64 across 37 hospitalsUT$64Colorado: median $36 across 39 hospitalsCO$36Nebraska: median $45 across 30 hospitalsNE$45Missouri: median $60 across 50 hospitalsMO$60Kentucky: median $57 across 51 hospitalsKY$57West Virginia: median $38 across 30 hospitalsWV$38Virginia: median $78 across 62 hospitalsVA$78Maryland: median $43 across 20 hospitalsMD$43Delaware: 6 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $38 across 20 hospitalsAZ$38New Mexico: 8 hospitals filed a usable price — fewer than 10, so no figureNMKansas: median $112 across 34 hospitalsKS$112Arkansas: median $59 across 18 hospitalsAR$59Tennessee: median $23 across 49 hospitalsTN$23North Carolina: median $52 across 53 hospitalsNC$52South Carolina: median $74 across 43 hospitalsSC$74Oklahoma: median $42 across 53 hospitalsOK$42Louisiana: median $41 across 26 hospitalsLA$41Mississippi: median $19 across 34 hospitalsMS$19Alabama: median $44 across 22 hospitalsAL$44Georgia: median $71 across 66 hospitalsGA$71Hawaii: median $96 across 11 hospitalsHI$96Texas: median $34 across 138 hospitalsTX$34Florida: median $29 across 81 hospitalsFL$29
Cash price by state, most expensive first. National median $50. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Minnesota MN21$114+126%$60 – $150
Kansas KS34$112+123%$66 – $204
Hawaii HI11$96+91%$67 – $119
Wisconsin WI64$92+82%$48 – $139
Montana MT10$82+63%$60 – $200
Virginia VA62$78+56%$32 – $170
Illinois IL90$77+53%$40 – $109
South Carolina SC43$74+46%$60 – $122
Georgia GA66$71+41%$39 – $85
North Dakota ND17$65+28%$56 – $90
Nevada NV10$64+26%$30 – $69
Utah UT37$64+26%$61 – $72
Pennsylvania PA85$63+25%$19 – $181
Missouri MO50$60+20%$26 – $101
South Dakota SD11$60+19%$20 – $131
Massachusetts MA33$59+17%$33 – $109
Arkansas AR18$59+16%$20 – $79
Kentucky KY51$57+13%$29 – $104
Ohio OH117$56+12%$33 – $95
Iowa IA39$55+9%$48 – $95
North Carolina NC53$52+2%$25 – $79
Connecticut CT12$48−5%$25 – $75
Washington WA49$48−6%$26 – $68
Alaska AK11$45−11%$36 – $88
Nebraska NE30$45−11%$35 – $84
Alabama AL22$44−13%$16 – $138
Maryland MD20$43−14%$31 – $47
Oklahoma OK53$42−16%$24 – $73
Idaho ID10$42−17%$28 – $61
Louisiana LA26$41−18%$29 – $114
Indiana IN67$39−23%$25 – $82
Arizona AZ20$38−24%$14 – $122
West Virginia WV30$38−25%$27 – $51
Colorado CO39$36−28%$18 – $203
Texas TX138$34−33%$17 – $133
Maine ME10$31−39%$12 – $42
Florida FL81$29−42%$13 – $132
California CA67$29−42%$8 – $104
New York NY76$28−44%$14 – $58
Oregon OR23$24−52%$16 – $66
Tennessee TN49$23−55%$17 – $39
Michigan MI47$20−60%$8 – $58
Mississippi MS34$19−62%$10 – $47
New Jersey NJ50$15−70%$13 – $54
New Hampshire NH9not enough hospitals filed a usable price
New Mexico NM8not enough hospitals filed a usable price
Rhode Island RI7not enough hospitals filed a usable price
Wyoming WY7not enough hospitals filed a usable price
Delaware DE6not enough hospitals filed a usable price
Vermont VT6not 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 $50.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care1,468$47$19 – $102
Children’s27$60$24 – $139
Critical access427$59$32 – $112
Ownership
For-profit271$53$19 – $171
Government289$51$28 – $96
Non-profit1,362$49$21 – $102
System affiliation
Part of a system1,623$50$21 – $104
Independent306$52$26 – $106

Cash price vs list price

Median list price (chargemaster)$86
Median cash price$50
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

1,340 hospitals filed a usable inpatient cash price for this code. The median is $51 and the average of the middle 60% is $54; most fall between $23 and $102.

Cash price percentiles, inpatient, across 1,340 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
$16$28$51$89$147

The most expensive tenth of hospitals charges at least 9.0× what the cheapest tenth charges ($16 vs $147).

Of the 1,464 hospitals that filed this code inpatient, 1,340 gave a usable cash price; 72 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 52 a list price only.

How complete is this

1,929 of the 3,956 hospitals with a price file in our corpus (49%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 2,084 hospitals that filed this code at all gave us
Usable cash price — counted1,929
Cash price carrying a plausibility flag — shown on the compare tool, excluded here99
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded1
An estimate rather than a filed cash price — excluded1
A list price only, no cash figure — excluded54
Hospitals that filed this code2,084

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 24, 2026; the figures were computed September 25, 2026 from filings loaded through September 24, 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 ASSAY OF INSULIN.

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, “Blood test for free insulin (CPT 83527) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-83527-blood-test-for-free-insulin