#flow interp 9 - 15 markers cost at US hospitals
#FLOW INTERP 9 - 15 MARKERS · CPT 88188
$22.50
lowest cash price
$172.50
national median
$1,265.55
highest cash price
293
hospitals with a published cash price
Middle half of hospitals (25th–75th percentile) against the full range. The same procedure varies $22.50–$1,265.55 — the variation is the story.
Median cash price over time
Oct 1, 2025 ($121.55) → Sep 1, 2026 ($288.00)
By state
| State | Hospitals | Lowest cash | Median | Highest |
|---|---|---|---|---|
| Alaska | 2 | not published by hospital | not published by hospital | not published by hospital |
| Arizona | 1 | $285.67 | $285.67 | $285.67 |
| Arkansas | 9 | $50.44 | $105.30 | $531.00 |
| California | 46 | $141.44 | $260.96 | $260.96 |
| Colorado | 8 | not published by hospital | not published by hospital | not published by hospital |
| Florida | 64 | $30.00 | $194.04 | $343.20 |
| Georgia | 24 | $26.27 | $249.00 | $249.00 |
| Hawaii | 1 | $237.75 | $237.75 | $237.75 |
| Illinois | 39 | $85.20 | $207.36 | $522.00 |
| Indiana | 25 | not published by hospital | not published by hospital | not published by hospital |
| Iowa | 14 | $85.20 | $155.20 | $155.20 |
| Kansas | 10 | $564.21 | $564.21 | $564.21 |
| Kentucky | 2 | not published by hospital | not published by hospital | not published by hospital |
| Louisiana | 4 | not published by hospital | not published by hospital | not published by hospital |
| Maine | 7 | not published by hospital | not published by hospital | not published by hospital |
| Michigan | 25 | $46.53 | $81.72 | $81.72 |
| Minnesota | 2 | not published by hospital | not published by hospital | not published by hospital |
| Mississippi | 2 | $78.10 | $78.10 | $142.00 |
| Missouri | 17 | $117.15 | $281.60 | $281.60 |
| Montana | 1 | not published by hospital | not published by hospital | not published by hospital |
| New Hampshire | 1 | not published by hospital | not published by hospital | not published by hospital |
| New Jersey | 21 | not published by hospital | not published by hospital | not published by hospital |
| New Mexico | 1 | not published by hospital | not published by hospital | not published by hospital |
| New York | 23 | $150.78 | $187.91 | $961.20 |
| North Carolina | 13 | $27.00 | $27.00 | $27.00 |
| North Dakota | 2 | not published by hospital | not published by hospital | not published by hospital |
| Ohio | 42 | $71.00 | $1,265.55 | $1,265.55 |
| Oklahoma | 17 | $82.90 | $189.15 | $1,036.20 |
| Oregon | 12 | $89.64 | $172.50 | $305.15 |
| Pennsylvania | 22 | $55.20 | $303.00 | $1,141.20 |
| South Carolina | 8 | not published by hospital | not published by hospital | not published by hospital |
| South Dakota | 3 | $229.60 | $229.60 | $229.60 |
| Tennessee | 25 | $93.54 | $93.54 | $133.67 |
| Texas | 118 | $48.13 | $564.24 | $564.24 |
| Virginia | 20 | not published by hospital | not published by hospital | not published by hospital |
| Washington | 30 | $42.70 | $104.58 | $901.60 |
| West Virginia | 11 | $22.50 | $65.50 | $123.50 |
| Wisconsin | 34 | $63.07 | $70.49 | $263.34 |
All hospitals
| Hospital | Location | Cash price | Negotiated range |
|---|---|---|---|
| Swedish Medical Center Cherry Hill | Seattle, WA | not published | $115.56 – $115.56 |
| Petaluma Valley Hospital | Petaluma, CA | not published | $132.08 – $505.99 |
| Providence Alaska Medical Center | Anchorage, AK | not published | $160.87 – $567.90 |
| Ascension St. Vincent Seton (St. Vincent Seton Specialty Hospital, Inc.) | Indianapolis, IN | not published | $10.32 – $143.75 |
| Ascension St. Vincent Carmel Ambulatory Surgery Center | Carmel, IN | not published | $10.32 – $143.75 |
| Ascension Saint Joseph - Chicago (Presence Chicago Hospital Network) | Chicago, IL | not published | $41.60 – $248.88 |