Ammonia test cost in Phoenix, AZ
In Phoenix-Mesa-Chandler, AZ, 35 hospitals list a cash price for ammonia blood test: from $9.66 to $571.00, with a median of $96.96. The lowest listed price is at Banner Heart Hospital — $87.30 less than the median here. Across Arizona, the median is $96.96 at 57 hospitals.
Cash prices at 35 facilities across 15 cities for code 82140, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Jan 1, 2026 and Aug 6, 2026.
Lowest$9.66Banner Heart Hospital
Median$96.96half pay less
Highest$571.00in this market
Difference59.1×highest vs lowest
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Phoenix-Mesa-Chandler, AZ.
median
Lowest $9.66Highest $571.00
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Banner Heart Hospital lowest Mesa, AZ · (480) 854-5050 LAB AMMONIA STONE RISK | $9.66 | $115.00 | $14.57–$86.25 | 92% | Mar 2, 2026 source file |
| Banner Casa Grande Medical Center Casa Grande, AZ · (520) 381-6300 LAB AMMONIA STONE RISK | $13.00 | $115.00 | $14.57–$86.25 | 89% | Mar 2, 2026 source file |
| Banner Baywood Medical Center Mesa, AZ · (480) 321-2000 LAB AMMONIA STONE RISK | $14.61 | $115.00 | $14.57–$86.25 | 87% | Mar 2, 2026 source file |
| Valleywise Health Medical Center Phoenix, AZ · (602) 344-5011 HC AMMONIA | $16.76 | $160.00 | $9.47–$40.76 | 90% | Jun 28, 2026 source file |
| Banner Desert Medical Center Mesa, AZ · (480) 412-3000 LAB AMMONIA STONE RISK | $17.25 | $115.00 | $14.57–$86.25 | 85% | Mar 2, 2026 source file |
| Banner Boswell Medical Center Sun City, AZ · (623) 832-4000 LAB AMMONIA STONE RISK | $17.36 | $115.00 | $14.57–$92.00 | 85% | Mar 2, 2026 source file |
| Banner Del E Webb Medical Center Sun City West, AZ · (623) 524-4000 LAB AMMONIA STONE RISK | $17.71 | $115.00 | $14.57–$92.00 | 85% | Mar 2, 2026 source file |
| Banner Heart Hospital Mesa, AZ · (480) 854-5050 LAB AMMONIA | $17.89 | $213.00 | $14.57–$159.75 | 92% | Mar 2, 2026 source file |
| Banner Estrella Medical Center Phoenix, AZ · (623) 327-4000 LAB AMMONIA STONE RISK | $18.17 | $115.00 | $14.57–$86.25 | 84% | Mar 2, 2026 source file |
| Banner Thunderbird Medical Center Glendale, AZ · (602) 865-4470 LAB AMMONIA STONE RISK | $18.17 | $115.00 | $14.57–$86.25 | 84% | Mar 2, 2026 source file |
| Banner University Medical Center Phoenix Phoenix, AZ · (602) 839-2000 LAB AMMONIA STONE RISK | $18.40 | $115.00 | $14.57–$86.25 | 84% | Mar 2, 2026 source file |
| Banner Gateway Medical Center Gilbert, AZ · (480) 543-2000 LAB AMMONIA STONE RISK | $19.09 | $115.00 | $14.57–$86.25 | 83% | May 1, 2026 source file |
| Banner Ironwood Medical Center San Tan Valley, AZ · (480) 394-4000 LAB AMMONIA STONE RISK | $19.90 | $115.00 | $14.57–$86.25 | 83% | Mar 2, 2026 source file |
| Banner Goldfield Medical Center Apache Junction, AZ · (480) 733-3300 LAB AMMONIA STONE RISK | $21.85 | $115.00 | $14.57–$86.25 | 81% | Mar 2, 2026 source file |
| Banner Ocotillo Medical Center Chandler, AZ · (480) 256-7000 LAB AMMONIA STONE RISK | $22.54 | $115.00 | $14.57–$86.25 | 80% | Mar 2, 2026 source file |
| Banner Casa Grande Medical Center Casa Grande, AZ · (520) 381-6300 LAB AMMONIA | $24.07 | $213.00 | $14.57–$159.75 | 89% | Mar 2, 2026 source file |
| Banner Baywood Medical Center Mesa, AZ · (480) 321-2000 LAB AMMONIA | $27.05 | $213.00 | $14.57–$159.75 | 87% | Mar 2, 2026 source file |
| Banner Desert Medical Center Mesa, AZ · (480) 412-3000 LAB AMMONIA | $31.95 | $213.00 | $14.57–$159.75 | 85% | Mar 2, 2026 source file |
| Banner Boswell Medical Center Sun City, AZ · (623) 832-4000 LAB AMMONIA | $32.16 | $213.00 | $14.57–$170.40 | 85% | Mar 2, 2026 source file |
| Banner Del E Webb Medical Center Sun City West, AZ · (623) 524-4000 LAB AMMONIA | $32.80 | $213.00 | $14.57–$170.40 | 85% | Mar 2, 2026 source file |
| Phoenix Children's Hospital Phoenix, AZ · (602) 933-1000 AMMONIA | $33.02 | $225.00 | $90.00–$180.00 | 85% | Jan 1, 2026 source file |
| Banner Thunderbird Medical Center Glendale, AZ · (602) 865-4470 LAB AMMONIA | $33.65 | $213.00 | $14.57–$159.75 | 84% | Mar 2, 2026 source file |
| Banner Estrella Medical Center Phoenix, AZ · (623) 327-4000 LAB AMMONIA | $33.65 | $213.00 | $14.57–$159.75 | 84% | Mar 2, 2026 source file |
| Banner University Medical Center Phoenix Phoenix, AZ · (602) 839-2000 LAB AMMONIA | $34.08 | $213.00 | $14.57–$159.75 | 84% | Mar 2, 2026 source file |
| Banner Gateway Medical Center Gilbert, AZ · (480) 543-2000 LAB AMMONIA | $35.36 | $213.00 | $14.57–$159.75 | 83% | May 1, 2026 source file |
| Banner Ironwood Medical Center San Tan Valley, AZ · (480) 394-4000 LAB AMMONIA | $36.85 | $213.00 | $14.57–$159.75 | 83% | Mar 2, 2026 source file |
| Banner Goldfield Medical Center Apache Junction, AZ · (480) 733-3300 LAB AMMONIA | $40.47 | $213.00 | $14.57–$159.75 | 81% | Mar 2, 2026 source file |
| Banner Ocotillo Medical Center Chandler, AZ · (480) 256-7000 LAB AMMONIA | $41.75 | $213.00 | $14.57–$159.75 | 80% | Mar 2, 2026 source file |
| Dignity Health - Arizona General Hospital Phoenix, AZ · (623) 584-5100 AMMONIA | $75.57 | $330.00 | $8.74–$269.61 | 77% | Feb 28, 2026 source file |
| Dignity Health Arizona General Hospital Mesa, AZ · (480) 410-4500 AMMONIA | $81.51 | $330.00 | $8.74–$269.61 | 75% | Feb 28, 2026 source file |
| Reunion Rehabilitation Hospital Peoria Peoria, AZ Assay of ammonia | $96.96 | $96.96 | — | — | Apr 1, 2026 source file |
| Reunion Rehabilitation Hospital Phoenix Phoenix, AZ Assay of ammonia | $96.96 | $96.96 | — | — | Apr 1, 2026 source file |
| Mercy Gilbert Medical Center Gilbert, AZ · (480) 728-8000 AMMONIA | $120.79 | $491.00 | $14.57–$378.07 | 75% | Feb 28, 2026 source file |
| College Medical Center - Phoenix Phoenix, AZ · (602) 251-8535 HC ASSAY OF AMMONIA | $121.43 | $121.43 | $14.57 | — | — source file |
| College Medical Center - Phoenix Phoenix, AZ · (602) 251-8535 HC ASSAY OF AMMONIA | $121.43 | $121.43 | $13.84–$20.03 | — | — source file |
| Banner Behavioral Health Hospital Scottsdale, AZ · (480) 448-7500 LAB AMMONIA | $124.79 | $213.00 | $14.57–$149.10 | 41% | Mar 2, 2026 source file |
| St Joseph's Westgate Medical Center Glendale, AZ · (602) 406-8225 UC AMMONIA ER | $128.36 | $336.00 | $14.57–$272.16 | 62% | Feb 28, 2026 source file |
| St Josephs Hospital and Medical Center Phoenix, AZ · (602) 406-8225 AMMONIA | $128.36 | $336.00 | $6.12–$265.44 | 62% | Feb 28, 2026 source file |
| Chandler Regional Medical Center Chandler, AZ · (480) 728-3000 AMMONIA | $131.59 | $491.00 | $8.74–$412.44 | 73% | Feb 28, 2026 source file |
| PAM Health Rehabilitation Hospital of Surprise Surprise, AZ Ammonia | $218.93 | $218.93 | $9.91–$164.20 | — | Aug 6, 2026 source file |
| HonorHealth Sonoran Crossing Medical Center Phoenix, AZ · (480) 882-4327 Hc Assay Of Blood Ammonia | $571.00 | $571.00 | — | — | Apr 1, 2026 source file |
| HonorHealth John C. Lincoln Medical Center Phoenix, AZ · (602) 943-2381 Hc Assay Of Blood Ammonia | $571.00 | $571.00 | — | — | Apr 1, 2026 source file |
| HonorHealth Scottsdale Thompson Peak Med Center Scottsdale, AZ · (480) 324-7001 Hc Assay Of Blood Ammonia | $571.00 | $571.00 | — | — | Apr 1, 2026 source file |
| HonorHealth Scottsdale Osborn Medical Center Scottsdale, AZ · (480) 882-4004 Hc Assay Of Blood Ammonia | $571.00 | $571.00 | — | — | Apr 1, 2026 source file |
| HonorHealth Florence Medical Center Florence, AZ Hc Assay Of Blood Ammonia | $571.00 | $571.00 | — | — | Apr 1, 2026 source file |
| HonorHealth Tempe Medical Center Tempe, AZ · (602) 251-8156 Hc Assay Of Blood Ammonia | $571.00 | $571.00 | — | — | Apr 1, 2026 source file |
| HonorHealth Scottsdale Shea Medical Center Scottsdale, AZ · (480) 323-3000 Hc Assay Of Blood Ammonia | $571.00 | $571.00 | — | — | Apr 1, 2026 source file |
| HonorHealth Four Peaks Medical Center Mesa, AZ · (480) 358-6100 Hc Assay Of Blood Ammonia | $571.00 | $571.00 | — | — | Apr 1, 2026 source file |
| HonorHealth Deer Valley Medical Center Phoenix, AZ · (623) 879-6100 Hc Assay Of Blood Ammonia | $571.00 | $571.00 | — | — | Apr 1, 2026 source file |
Outpatient: lowest $9.66, median $96.96, highest $571.00 — a 59.1× difference within the same market.
As an inpatient, the same code is billed by 34 facilities here, median $89.24. 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 22 of 24 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 3 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.