Ammonia test cost in New Orleans, LA
In New Orleans-Metairie, LA, 13 hospitals list a cash price for ammonia blood test: from $19.80 to $98.39, with a median of $32.64. The lowest listed price is at Ochsner Clinic Foundation — $12.84 less than the median here. Across Louisiana, the median is $49.18 at 55 hospitals.
Cash prices at 13 facilities across 6 cities for code 82140, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Jun 24, 2026 and Jul 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in New Orleans-Metairie, LA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Ochsner Clinic Foundation lowest New Orleans, LA · (504) 842-3000 HC STONERISK PRO-AMMONIA, UR | $19.80 | $90.00 | $13.06–$81.00 | 78% | — source file |
| Ochsner Clinic Foundation lowest New Orleans, LA · (504) 842-3000 HC AMMONIA, BLOOD | $19.80 | $90.00 | $13.06–$81.00 | 78% | — source file |
| St Bernard Parish Hospital Chalmette, LA · (504) 826-9500 HC AMMONIA, BLOOD | $26.24 | $82.00 | $6.12–$61.50 | 68% | — source file |
| St Bernard Parish Hospital Chalmette, LA · (504) 826-9500 HC STONERISK PRO-AMMONIA, UR | $26.24 | $82.00 | $6.12–$61.50 | 68% | — source file |
| Tulane Medical Center New Orleans, LA · (504) 988-5263 HC Assay of Ammonia | $27.30 | $195.00 | $129.85–$95.55 | 86% | Jun 25, 2026 source file |
| Lakeside Hospital Metairie, LA · (504) 988-5263 HC Assay of Ammonia | $27.30 | $195.00 | $129.85–$95.55 | 86% | Jul 1, 2026 source file |
| East Jefferson General Hospital Metairie, LA · (504) 988-5263 HC Assay of Ammonia | $27.30 | $195.00 | $129.85–$95.55 | 86% | Jul 1, 2026 source file |
| St Charles Parish Hospital Luling, LA · (985) 785-3644 AMMONIA LEVEL | $28.80 | $48.00 | $8.64–$48.00 | 40% | — source file |
| West Jefferson Medical Center Marrero, LA · (504) 347-5511 HC Assay of Ammonia | $32.64 | $204.00 | $14.57–$96.70 | 84% | Jun 30, 2026 source file |
| West Jefferson Medical Center Marrero, LA · (504) 347-5511 Labcorp Assay of Ammonia | $32.64 | $204.00 | $14.57–$96.70 | 84% | Jun 30, 2026 source file |
| West Jefferson Medical Center Marrero, LA · (504) 347-5511 Ammonia Level | $32.64 | $204.00 | $14.57–$96.70 | 84% | Jun 30, 2026 source file |
| University Med Center New Orleans, LA · (504) 702-3000 Labcorp Assay of Ammonia | $33.66 | $153.00 | $13.11–$86.60 | 78% | Jul 1, 2026 source file |
| University Med Center New Orleans, LA · (504) 702-3000 HC Assay of Ammonia | $33.66 | $153.00 | $13.11–$86.60 | 78% | Jul 1, 2026 source file |
| University Med Center New Orleans, LA · (504) 702-3000 Ammonia Level | $33.66 | $153.00 | $13.11–$86.60 | 78% | Jul 1, 2026 source file |
| New Orleans East Hospital New Orleans, LA · (504) 592-6600 Ammonia Level | $44.96 | $281.00 | $14.57–$94.75 | 84% | Jun 24, 2026 source file |
| Touro Infirmary New Orleans, LA · (504) 897-8247 Labcorp Assay of Ammonia | $54.04 | $386.00 | $11.93–$71.91 | 86% | Jul 1, 2026 source file |
| Touro Infirmary New Orleans, LA · (504) 897-8247 HC Assay of Ammonia | $54.04 | $386.00 | $11.93–$71.91 | 86% | Jul 1, 2026 source file |
| Ochsner Medical Center – Kenner Kenner, LA · (504) 464-8065 HC AMMONIA, BLOOD | $54.60 | $195.00 | $13.11–$167.51 | 72% | — source file |
| Touro Infirmary New Orleans, LA · (504) 897-8247 Ammonia Level | $58.10 | $415.00 | $11.93–$77.31 | 86% | Jul 1, 2026 source file |
| Childrens Hospital New Orleans, LA · (504) 899-9511 Ammonia Level | $75.87 | $281.00 | $109.59–$87.11 | 73% | Jun 24, 2026 source file |
| Childrens Hospital New Orleans, LA · (504) 899-9511 Labcorp Assay of Ammonia | $75.87 | $281.00 | $109.59–$87.11 | 73% | Jun 24, 2026 source file |
| Childrens Hospital New Orleans, LA · (504) 899-9511 HC Assay of Ammonia | $75.87 | $281.00 | $109.59–$87.11 | 73% | Jun 24, 2026 source file |
| St Charles Surgical Hospital New Orleans, LA · (504) 529-6600 AMMONIA | $98.39 | $279.00 | $14.28–$127.78 | 65% | — source file |
| Lakeside Hospital Metairie, LA · (504) 988-5263 Labcorp Assay of Ammonia | $123.90 | $885.00 | $14.57–$93.81 | 86% | Jul 1, 2026 source file |
| East Jefferson General Hospital Metairie, LA · (504) 988-5263 Ammonia Level | $123.90 | $885.00 | $14.57–$93.81 | 86% | Jul 1, 2026 source file |
| Lakeside Hospital Metairie, LA · (504) 988-5263 Ammonia Level | $123.90 | $885.00 | $14.57–$93.81 | 86% | Jul 1, 2026 source file |
| Tulane Medical Center New Orleans, LA · (504) 988-5263 Ammonia Level | $123.90 | $885.00 | $14.57–$93.81 | 86% | Jun 25, 2026 source file |
| East Jefferson General Hospital Metairie, LA · (504) 988-5263 Labcorp Assay of Ammonia | $123.90 | $885.00 | $14.57–$93.81 | 86% | Jul 1, 2026 source file |
| Tulane Medical Center New Orleans, LA · (504) 988-5263 Labcorp Assay of Ammonia | $123.90 | $885.00 | $14.57–$93.81 | 86% | Jun 25, 2026 source file |
Outpatient: lowest $19.80, median $32.64, highest $98.39 — a 5.0× difference within the same market.
As an inpatient, the same code is billed by 6 facilities here, median $27.52. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 13 of 13 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 4 it is below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
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.
5 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 82140 ($91.63). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| Ochsner Medical Center – Kenner Kenner, LAHC STONERISK PRO-AMMONIA, UR | $4.48 | file |
| St Charles Parish Hospital Luling, LAUR STONERSK-AMMONIA | $6.00 | file |
| Ochsner Clinic Foundation New Orleans, LAHC SUPERSAT URINE, AMMONIUM | $6.16 | file |
| Ochsner Medical Center – Kenner Kenner, LAHC SUPERSAT URINE, AMMONIUM | $7.84 | file |
| St Bernard Parish Hospital Chalmette, LAHC SUPERSAT URINE, AMMONIUM | $8.96 | file |