BUN test cost in Tucson, AZ
In Tucson, AZ, 8 hospitals list a cash price for blood urea nitrogen (BUN) test: from $5.77 to $39.84, with a median of $22.08. The lowest listed price is at Banner University Med Center South — $16.31 less than the median here. Across Arizona, the median is $23.21 at 54 hospitals.
Cash prices at 8 facilities across 2 cities for code 84520, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Mar 2, 2026 and Apr 30, 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 Tucson, AZ.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Banner University Med Center South lowest Tucson, AZ · (520) 874-2000 LAB NITROGEN UREA QN | $5.77 | $37.00 | $3.95–$29.60 | 84% | Mar 2, 2026 source file |
| Banner University Medical Center Tucson Tucson, AZ · (520) 874-4189 LAB NITROGEN UREA QN | $5.99 | $37.00 | $3.95–$29.60 | 84% | Mar 2, 2026 source file |
| Banner University Med Center South Tucson, AZ · (520) 874-2000 LAB NITROGEN UREA QN NS | $10.45 | $67.00 | $3.95–$53.60 | 84% | Mar 2, 2026 source file |
| Banner University Medical Center Tucson Tucson, AZ · (520) 874-4189 LAB NITROGEN UREA QN NS | $10.85 | $67.00 | $3.95–$53.60 | 84% | Mar 2, 2026 source file |
| Tucson Medical Center Rincon Hospital Tucson, AZ · (520) 324-1399 HC Urea Nitrogen Fluid | $14.28 | $51.00 | $3.95–$7.97 | 72% | Apr 30, 2026 source file |
| Tucson Medical Center Tucson, AZ · (520) 324-1399 HC Urea Nitrogen Fluid | $14.28 | $51.00 | $3.95–$7.97 | 72% | Apr 30, 2026 source file |
| Banner University Med Center South Tucson, AZ · (520) 874-2000 POC NITROGEN UREA QN TELCOR | $15.76 | $101.00 | $3.95–$80.80 | 84% | Mar 2, 2026 source file |
| Banner University Medical Center Tucson Tucson, AZ · (520) 874-4189 POC NITROGEN UREA QN TELCOR | $16.36 | $101.00 | $3.95–$80.80 | 84% | Mar 2, 2026 source file |
| Tucson Medical Center Rincon Hospital Tucson, AZ · (520) 324-1399 HC POC Bun Istat | $21.28 | $76.00 | $3.95–$7.97 | 72% | Apr 30, 2026 source file |
| Tucson Medical Center Tucson, AZ · (520) 324-1399 HC POC Bun Istat | $21.28 | $76.00 | $3.95–$7.97 | 72% | Apr 30, 2026 source file |
| Banner University Med Center South Tucson, AZ · (520) 874-2000 POC NITROGEN UREA QN | $21.37 | $137.00 | $3.95–$109.60 | 84% | Mar 2, 2026 source file |
| Banner University Medical Center Tucson Tucson, AZ · (520) 874-4189 POC NITROGEN UREA QN | $22.19 | $137.00 | $3.95–$109.60 | 84% | Mar 2, 2026 source file |
| Tucson Medical Center Rincon Hospital Tucson, AZ · (520) 324-1399 HC Bun Blood | $23.24 | $83.00 | $3.95–$7.97 | 72% | Apr 30, 2026 source file |
| Tucson Medical Center Tucson, AZ · (520) 324-1399 HC Bun Blood | $23.24 | $83.00 | $3.95–$7.97 | 72% | Apr 30, 2026 source file |
| Northwest Medical Center Houghton Tucson, AZ · (520) 416-7100 UREA NITROGEN,QUAN | $29.88 | $166.00 | $3.79–$99.60 | 82% | Apr 1, 2026 source file |
| Northwest Medical Center Sahuarita Sahuarita, AZ · (520) 416-7100 UREA NITROGEN,QUAN | $29.88 | $166.00 | $3.79–$99.60 | 82% | Apr 1, 2026 source file |
| Oro Valley Hospital Tucson, AZ · (520) 901-3500 UREA NITROGEN,QUAN | $39.84 | $166.00 | $3.79–$149.40 | 76% | Apr 1, 2026 source file |
| Northwest Hospital Tucson, AZ · (520) 469-8100 UREA NITROGEN,QUAN | $39.84 | $166.00 | $3.79–$149.40 | 76% | Apr 1, 2026 source file |
Outpatient: lowest $5.77, median $22.08, highest $39.84 — a 6.9× difference within the same market.
As an inpatient, the same code is billed by 8 facilities here, median $37.02. 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 6 of 8 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
A BUN test measures urea nitrogen, a waste product removed by the kidneys. It is used with creatinine to check kidney function and hydration.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.