Ammonia test cost in Missouri
In Missouri, 63 hospitals publish a cash price for ammonia blood test: from $14.00 to $596.78, with a median of $76.50. The lowest price is at St Joseph Medical Center (Kansas City). The highest price is 42.6× the lowest.
Outpatient cash prices, one line per hospital — its lowest listed price for code 82140. Prices for both sides of the body and inpatient prices are not mixed in. Collected Oct 2, 2026. See them on a map
Lowest$14.00St Joseph Medical Center
Median$76.50half of hospitals charge less
Highest$596.78in Missouri
Lowest saves$62.50vs the median
Hospitals in Missouri, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| St Joseph Medical Center lowest Kansas City · Kansas City, MO-KS Hc Assay Of Ammonia | $14.00 | $245.53 | Mar 17, 2026 source file |
| Community Hospital Association Fairfax · Fairfax, MO AMMONIA | $16.10 | $23.00 | Aug 21, 2026 source file |
| Oklahoma Spine Hospital Kansas City · Kansas City, MO AMMONIA PLASMA | $25.00 | $139.93 | — source file |
| Western Missouri Medical Center Warrensburg · Warrensburg, MO Ammonia Level | $25.00 | $40.00 | Dec 1, 2024 source file |
| Missouri Delta Medical Center Sikeston · Sikeston, MO SSAT Ammonium, 24hr, U | $29.00 | $116.00 | Aug 7, 2026 source file |
| Pike County Memorial Hospital Lousiana · Lousiana, MO Ammonia Level | $32.00 | $40.00 | — source file |
| Lake Regional Health System Osage Beach · Osage Beach, MO Assay of ammonia | $40.20 | $134.00 | Sep 2, 2026 source file |
| Liberty Hospital Liberty · Kansas City, MO-KS AMMONIA | $43.00 | $157.00 | — source file |
| Boone Hospital Center Columbia · Columbia, MO AMMONIA | $45.60 | $76.00 | Apr 1, 2026 source file |
| Cox Medical Center Branson Branson · Branson, MO AMMONIA LEVEL | $47.01 | $207.09 | — source file |
| Mercy Hospital Lincoln Troy · St. Louis, MO-IL Stone Risk Ua Ammonia | $51.35 | $79.00 | — source file |
| Lester E Cox Medical Centers Springfield · Springfield, MO AMMONIA LEVEL | $52.19 | $207.09 | — source file |
| Harrison County Community Hospital Bethany · Bethany, MO AMMONIA | $53.30 | $82.00 | Sep 10, 2025 source file |
| Mercy Hospital Carthage Carthage · Joplin, MO-KS Stone Risk Ua Ammonia | $57.85 | $89.00 | — source file |
| Mercy Hospital St Louis Saint Louis · St. Louis, MO-IL Stone Risk Ua Ammonia | $57.85 | $89.00 | — source file |
| Mercy Perry Perryville · Perryville, MO Stone Risk Ua Ammonia | $57.85 | $89.00 | — source file |
| NKC Health North Kansas City · Kansas City, MO-KS AMMONIA LEVEL | $58.29 | $201.00 | Mar 6, 2026 source file |
| Mercy Hospital Aurora Aurora · Aurora, MO Stone Risk Ua Ammonia | $59.80 | $92.00 | — source file |
| Mercy Hospital Cassville Cassville · Cassville, MO Stone Risk Ua Ammonia | $59.80 | $92.00 | — source file |
| Mercy St. Francis Hospital Mountain View · West Plains, MO Stone Risk Ua Ammonia | $59.80 | $92.00 | — source file |
| Cox-Monett Hospital Monett · Monett, MO AMMONIA LEVEL | $63.16 | $207.09 | — source file |
| Mercy Hospital Lebanon Lebanon · Lebanon, MO Stone Risk Ua Ammonia | $63.70 | $98.00 | — source file |
| Hermann Area Hospital District Hermann · Hermann, MO Ammonia level | $64.20 | $107.00 | Oct 1, 2026 source file |
| Mercy Hospital Washington Washington · St. Louis, MO-IL Stone Risk Ua Ammonia | $65.00 | $100.00 | — source file |
| Bothwell Regional Health Center Sedalia · Sedalia, MO AMMONIA LEVEL | $65.25 | $87.00 | — source file |
| Cox Barton County Hospital Lamar · Lamar, MO AMMONIA LEVEL | $66.06 | $207.09 | — source file |
| Mosaic Medical Center Albany Albany · Albany, MO HC ASSAY OF AMMONIA - AMMONIA | $68.00 | $80.00 | Sep 26, 2025 source file |
| Mercy Hospital Springfield Springfield · Springfield, MO Ammonia | $74.10 | $114.00 | — source file |
| Mercy Orthopedic Hospital Springfield Ozark · Springfield, MO Ammonia | $74.10 | $114.00 | — source file |
| Sullivan County Memorial Hospital Milan · Milan, MO AMMONIA | $76.00 | $76.00 | Jul 1, 2026 source file |
| Heartland Long Term Acute Hospital St. Joseph · St. Joseph, MO-KS HC ASSAY OF AMMONIA - AMMONIA | $76.50 | $90.00 | Jun 23, 2026 source file |
| Mosaic Life Care at St Joseph Medical Center St. Joseph · St. Joseph, MO-KS HC ASSAY OF AMMONIA - AMMONIA | $76.50 | $90.00 | Sep 26, 2025 source file |
| Mosaic Medical Center Maryville Maryville · Maryville, MO HC ASSAY OF AMMONIA - AMMONIA | $76.50 | $90.00 | Sep 26, 2025 source file |
| Children's Mercy Hospital Kansas City · Kansas City, MO-KS AMMONIA PLASMA MAIN | $82.08 | $171.00 | — source file |
| Curators of the University of Missouri Columbia · Columbia, MO AMMONIA LEVEL P31020064 | $84.33 | $140.55 | Dec 15, 2025 source file |
| Mercy Hospital Jefferson Festus · St. Louis, MO-IL Ammonia | $89.70 | $138.00 | — source file |
| Nevada City Hospital Nevada · Nevada, MO STONERISK DIAGNOSTIC PROFILE QST | $91.80 | $204.00 | — source file |
| Madison Medical Center Fredericktown · Fredericktown, MO AMMONIA | $96.00 | $114.00 | Jan 5, 2025 source file |
| Mercy Hospital Stoddard Dexter · Dexter, MO Ammonia | $97.50 | $150.00 | — source file |
| Golden Valley Memorial Hospital Clinton · Clinton, MO AMMONIA LEVEL | $102.00 | $170.00 | — source file |
| Mercy Hospital South Saint Louis · St. Louis, MO-IL Stone Risk Ua Ammonia | $102.70 | $158.00 | — source file |
| Ste. Genevieve County Memorial Hospital Ste. Genevieve · Ste. Genevieve, MO AMMONIA URINE | $105.75 | $211.50 | May 19, 2026 source file |
| Saint Francis Medical Center Cape Girardeau · Cape Girardeau, MO-IL Hc Ammonia | $110.00 | $110.00 | Apr 1, 2026 source file |
| Moberly Regional Medical Center Moberly · Moberly, MO AMMONIA | $110.02 | $407.48 | Apr 1, 2026 source file |
| Citizens Memorial Hospital Bolivar · Springfield, MO AMMONIA LEVEL | $110.20 | $137.75 | — source file |
| Freeman Health System - Freeman West Joplin · Joplin, MO-KS AMMONIA BLOOD | $112.56 | $281.40 | Sep 1, 2026 source file |
| Freeman Neosho Hospital Neosho · Joplin, MO-KS AMMONIA BLOOD | $112.56 | $281.40 | Sep 1, 2026 source file |
| Shriners Childrens - St Louis Saint Louis · St. Louis, MO-IL ASSAY OF AMMONIA | $114.50 | $114.50 | — source file |
| Cass Regional Medical Center Harrisonville · Kansas City, MO-KS AMMONIA 82140 | $133.70 | $191.00 | Apr 7, 2026 source file |
| Mercy Hospital Joplin Joplin · Joplin, MO-KS Stone Risk Ua Ammonia | $146.25 | $225.00 | — source file |
| Scotland County Memorial Hospital Memphis · Memphis, MO AMMONIA | $166.60 | $238.00 | Oct 24, 2025 source file |
| Fitzgibbon Hospital Marshall · Marshall, MO Ammonia level | $167.03 | $208.79 | Feb 2, 2026 source file |
| Texas County Memorial Hospital Houston · Houston, MO AMMONIA LEVEL | $175.88 | $251.25 | — source file |
| Mercy Hospital Southeast Cape Girardeau · Cape Girardeau, MO-IL Ammonia | $176.15 | $271.00 | — source file |
| Bates County Memorial Hospital Butler · Kansas City, MO-KS AMMONIA LEVEL | $183.20 | $261.71 | Apr 20, 2026 source file |
| Northeast Regional Medical Center Kirksville · Kirksville, MO AMMONIA | $199.32 | $830.48 | Apr 1, 2026 source file |
| Poplar Bluff Regional Medical Center Poplar Bluff · Poplar Bluff, MO Ammonia Level | $288.08 | $1,371.83 | Apr 1, 2026 source file |
| Phelps Health Rolla · Rolla, MO AMMONIA LEVEL | $365.55 | $522.22 | — source file |
| Belton Regional Medical Center Kansas City · Kansas City, MO-KS Ammonia | $368.40 | $368.40 | Sep 1, 2026 source file |
| Research Medical Center Kansas City · Kansas City, MO-KS Ammonia | $376.52 | $376.52 | Sep 1, 2026 source file |
| Lafayette Regional Health Center Lexington · Kansas City, MO-KS Ammonia | $466.60 | $466.60 | Sep 1, 2026 source file |
| Centerpoint Medical Center Independence · Kansas City, MO-KS AMMONIA | $483.28 | $483.28 | Sep 1, 2026 source file |
| Lee's Summit Medical Center Lee's Summit · Kansas City, MO-KS AMMONIA | $596.78 | $596.78 | Sep 1, 2026 source file |
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
File date When the hospital last updated its price file, as the file says itself. A dash means the file gives no date.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More
By metro area
Each metro page compares every listing, including prices for both sides of the body.
| Metro area | Hospitals | Lowest | Median |
|---|---|---|---|
| Kansas City, MO-KS | 11 | $14.00 | $183.20 |
| St. Louis, MO-IL | 6 | $51.35 | $77.35 |
| Joplin, MO-KS | 4 | $57.85 | $112.56 |
| Springfield, MO | 4 | $52.19 | $74.10 |
| Cape Girardeau, MO-IL | 2 | $110.00 | $143.08 |
| Columbia, MO | 2 | $45.60 | $64.96 |
| St. Joseph, MO-KS | 2 | $76.50 | $76.50 |
| Albany, MO | 1 | $68.00 | $68.00 |
| Aurora, MO | 1 | $59.80 | $59.80 |
| Bethany, MO | 1 | $53.30 | $53.30 |
| Branson, MO | 1 | $47.01 | $47.01 |
| Cassville, MO | 1 | $59.80 | $59.80 |
| Clinton, MO | 1 | $102.00 | $102.00 |
| Dexter, MO | 1 | $97.50 | $97.50 |
| Fairfax, MO | 1 | $16.10 | $16.10 |
| Fredericktown, MO | 1 | $96.00 | $96.00 |
| Hermann, MO | 1 | $64.20 | $64.20 |
| Houston, MO | 1 | $175.88 | $175.88 |
| Kansas City, MO | 1 | $25.00 | $25.00 |
| Kirksville, MO | 1 | $199.32 | $199.32 |
| Lamar, MO | 1 | $66.06 | $66.06 |
| Lousiana, MO | 1 | $32.00 | $32.00 |
| Lebanon, MO | 1 | $63.70 | $63.70 |
| Memphis, MO | 1 | $166.60 | $166.60 |
| Milan, MO | 1 | $76.00 | $76.00 |
| Monett, MO | 1 | $63.16 | $63.16 |
| Marshall, MO | 1 | $167.03 | $167.03 |
| Maryville, MO | 1 | $76.50 | $76.50 |
| Moberly, MO | 1 | $110.02 | $110.02 |
| Nevada, MO | 1 | $91.80 | $91.80 |
| Osage Beach, MO | 1 | $40.20 | $40.20 |
| Perryville, MO | 1 | $57.85 | $57.85 |
| Poplar Bluff, MO | 1 | $288.08 | $288.08 |
| Rolla, MO | 1 | $365.55 | $365.55 |
| Ste. Genevieve, MO | 1 | $105.75 | $105.75 |
| Sedalia, MO | 1 | $65.25 | $65.25 |
| Sikeston, MO | 1 | $29.00 | $29.00 |
| Warrensburg, MO | 1 | $25.00 | $25.00 |
| West Plains, MO | 1 | $59.80 | $59.80 |
Market A metro area (as the Census Bureau defines it) or, outside metro areas, a town. Each links to every hospital price there.
Hospitals How many hospitals publish a cash price for this code here. Each hospital counts once, at its lowest outpatient cash price.
Lowest The lowest cash price among those hospitals.
Median The middle cash price: half of the hospitals charge less, half charge more. One price per hospital. More
What it is
An ammonia test measures ammonia in the blood. It is used for confusion or drowsiness in people with liver disease and for some rare inherited disorders in newborns.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.
Ammonia blood test in other states
- Alabama$85.12
- Alaska$155.40
- Arizona$78.54
- Arkansas$54.34
- California$180.96
- Colorado$186.10
- Connecticut$75.50
- Delaware$103.15
- District of Columbia$164.98
- Florida$107.09
- Georgia$88.14
- Hawaii$135.00
- Idaho$69.60
- Illinois$108.83
- Indiana$120.00
- Iowa$88.18
- Kansas$85.83
- Kentucky$98.28
- Louisiana$49.18
- Maine$91.18
- Maryland$57.90
- Massachusetts$92.00
- Michigan$65.00
- Minnesota$85.28
- Mississippi$72.00
- Montana$97.34
- Nebraska$128.00
- Nevada$159.13
- New Hampshire$87.75
- New Jersey$17.83
- New Mexico$114.45
- New York$52.74
- North Carolina$69.30
- North Dakota$49.60
- Ohio$54.75
- Oklahoma$60.00
- Oregon$87.10
- Pennsylvania$88.20
- Puerto Rico$52.00
- Rhode Island$116.00
- South Carolina$99.00
- South Dakota$137.70
- Tennessee$48.83
- Texas$142.06
- Utah$300.34
- Vermont$132.65
- Virginia$91.80
- Washington$114.40
- West Virginia$37.55
- Wisconsin$89.76
- Wyoming$69.54
Median cash price across the state's hospitals.