BUN test cost in Buffalo, NY — inpatient
In Buffalo-Cheektowaga, NY, 7 hospitals list a cash price for blood urea nitrogen (BUN) test as an inpatient: from $3.95 to $53.09, with a median of $4.78. The lowest listed price is at Mercy Hospital of Buffalo and 2 other hospitals — $0.83 less than the median here. Across New York, the median is $21.38 at 110 hospitals.
Cash prices at 7 facilities across 3 cities for code 84520, as an inpatient (admitted to hospital) . Collected Oct 2, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Oct 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 Buffalo-Cheektowaga, NY.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Mercy Hospital of Buffalo lowest Buffalo, NY · (716) 826-7000 HC Assay Urea Nitrogen, Quan - Blood Urea Nitrogen source file | $3.95 | $10.00 | $2.96–$10.00 | 61% |
| Sisters of Charity Hospital lowest Buffalo, NY · (716) 862-1000 HC Assay Urea Nitrogen, Quan - Blood Urea Nitrogen source file | $3.95 | $10.00 | $2.96–$10.00 | 61% |
| Mount St. Mary's Hospital lowest Lewiston, NY · (716) 297-4800 HC Assay Urea Nitrogen, Quan - Blood Urea Nitrogen source file | $3.95 | $10.00 | $2.96–$10.00 | 61% |
| Bertrand Chaffee Hospital Springville, NY · (716) 592-2871 UREA LAB+1 more line at this price File of Oct 1, 2026 · source file | $4.78 | $5.63 | $2.64–$5.63 | 15% |
| Mercy Hospital of Buffalo Buffalo, NY · (716) 826-7000 HC Assay Urea Nitrogen, Quan - POCT Urea (Bun)+3 more lines at this price source file | $10.00 | $10.00 | $2.96–$10.00 | — |
| Sisters of Charity Hospital Buffalo, NY · (716) 862-1000 HC Assay Urea Nitrogen, Quan - Pre-Dialysis Bun (Blood Urea Nitrogen)+3 more lines at this price source file | $10.00 | $10.00 | $2.96–$10.00 | — |
| Mount St. Mary's Hospital Lewiston, NY · (716) 297-4800 HC Assay Urea Nitrogen, Quan - POCT Urea (Bun)+3 more lines at this price source file | $10.00 | $10.00 | $2.96–$10.00 | — |
| Erie County Medical Center Buffalo, NY · (716) 898-3936 BLOOD UREA NITROGEN NO CHARGE+1 more line at this price File of Aug 25, 2026 · source file | $16.83 | $39.63 | $2.96–$35.66 | 58% |
| Kaleida Health Buffalo, NY · (716) 859-8620 Urea Nitrogen Serum Fibrp+8 more lines at this price File of Apr 1, 2026 · source file | $41.00 | $41.00 | — | — |
| Roswell Park Cancer Institute Buffalo, NY Urea Nitrogen Quantitative File of Apr 1, 2026 · source file | $53.09 | $53.09 | — | — |
Inpatient: lowest $3.95, median $4.78, highest $53.09 — a 13.4× difference within the same market.
As an outpatient, the same code is billed by 8 facilities here, median $7.57 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 5 of 5 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.