Ammonia test cost in Fayetteville, AR — inpatient
In Fayetteville-Springdale-Rogers, AR, 2 hospitals list a cash price for ammonia blood test as an inpatient: from $19.20 to $45.90, with a median of $32.55. The lowest listed price is at Ozarks Community Hospital — $13.35 less than the median here. Across Arkansas, the median is $54.34 at 49 hospitals.
Cash prices at 2 facilities across 2 cities for code 82140, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 16, 2026 and Mar 16, 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 Fayetteville-Springdale-Rogers, AR.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Ozarks Community Hospital lowest Gravette, AR · (479) 787-5291 Stone Risk Diagnositc Profile 442 QT | $19.20 | $48.00 | $12.49–$24.96 | 60% | — source file |
| Mercy Rehabilitation Hospital Northwest Arkansas Rogers, AR AMMONIA BLOOD | $45.90 | $45.90 | $36.26–$45.90 | — | Mar 16, 2026 source file |
| Ozarks Community Hospital Gravette, AR · (479) 787-5291 AMMONIA 5509 QT | $58.40 | $146.00 | $12.49–$75.92 | 60% | — source file |
| Ozarks Community Hospital Gravette, AR · (479) 787-5291 AMMONIA-GRV | $58.40 | $146.00 | $12.49–$75.92 | 60% | — source file |
| Mercy Rehabilitation Hospital Northwest Arkansas Rogers, AR AMMONIA | $80.70 | $80.70 | $63.75–$80.70 | — | Mar 16, 2026 source file |
Inpatient: lowest $19.20, median $32.55, highest $45.90 — a 2.4× difference within the same market.
As an outpatient, the same code is billed by 4 facilities here, median $57.95 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 1 of 2 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it 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.