BUN test cost in Buffalo, NY
In Buffalo-Cheektowaga, NY, 8 hospitals list a cash price for blood urea nitrogen (BUN) test: from $3.95 to $53.09, with a median of $7.57. The lowest listed price is at Sisters of Charity Hospital and 2 other hospitals — $3.62 less than the median here. Across New York, the median is $21.38 at 110 hospitals.
Cash prices at 8 facilities across 4 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 Apr 1, 2026 and Sep 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 | File date |
|---|---|---|---|---|---|
| Sisters of Charity Hospital lowest Buffalo, NY · (716) 862-1000 HC Assay Urea Nitrogen, Quan - Blood Urea Nitrogen | $3.95 | $10.00 | $2.96–$10.00 | 61% | — source file |
| Mercy Hospital of Buffalo lowest Buffalo, NY · (716) 826-7000 HC Assay Urea Nitrogen, Quan - Blood Urea Nitrogen | $3.95 | $10.00 | $2.96–$10.00 | 61% | — source file |
| Mount St. Mary's Hospital lowest Lewiston, NY · (716) 297-4800 HC Assay Urea Nitrogen, Quan - Blood Urea Nitrogen | $3.95 | $10.00 | $2.96–$10.00 | 61% | — source file |
| Bertrand Chaffee Hospital Springville, NY · (716) 592-2871 ASSAY OF UREA NITROGEN | $4.78 | $5.63 | $2.64–$5.63 | 15% | Sep 1, 2026 source file |
| Bertrand Chaffee Hospital Springville, NY · (716) 592-2871 UREA LAB | $4.78 | $5.63 | $2.64–$5.63 | 15% | Sep 1, 2026 source file |
| Sisters of Charity Hospital Buffalo, NY · (716) 862-1000 HC Assay Urea Nitrogen, Quan - Post-Dialysis Bun (Blood Urea Nitrogen) | $10.00 | $10.00 | $2.96–$10.00 | — | — source file |
| Sisters of Charity Hospital Buffalo, NY · (716) 862-1000 HC Assay Urea Nitrogen, Quan - Pre-Dialysis Bun (Blood Urea Nitrogen) | $10.00 | $10.00 | $2.96–$10.00 | — | — source file |
| Sisters of Charity Hospital Buffalo, NY · (716) 862-1000 HC Assay Urea Nitrogen, Quan - Urea Nitrogen, Body Fluid | $10.00 | $10.00 | $2.96–$10.00 | — | — source file |
| Mount St. Mary's Hospital Lewiston, NY · (716) 297-4800 HC Assay Urea Nitrogen, Quan - POCT Urea (Bun) | $10.00 | $10.00 | $2.96–$10.00 | — | — source file |
| Mount St. Mary's Hospital Lewiston, NY · (716) 297-4800 HC Assay Urea Nitrogen, Quan - Urea Nitrogen, Body Fluid | $10.00 | $10.00 | $2.96–$10.00 | — | — source file |
| Mount St. Mary's Hospital Lewiston, NY · (716) 297-4800 HC Assay Urea Nitrogen, Quan - Post-Dialysis Bun (Blood Urea Nitrogen) | $10.00 | $10.00 | $2.96–$10.00 | — | — source file |
| Mount St. Mary's Hospital Lewiston, NY · (716) 297-4800 HC Assay Urea Nitrogen, Quan - Pre-Dialysis Bun (Blood Urea Nitrogen) | $10.00 | $10.00 | $2.96–$10.00 | — | — source file |
| Mercy Hospital of Buffalo Buffalo, NY · (716) 826-7000 HC Assay Urea Nitrogen, Quan - POCT Urea (Bun) | $10.00 | $10.00 | $2.96–$10.00 | — | — source file |
| Mercy Hospital of Buffalo Buffalo, NY · (716) 826-7000 HC Assay Urea Nitrogen, Quan - Urea Nitrogen, Body Fluid | $10.00 | $10.00 | $2.96–$10.00 | — | — source file |
| Mercy Hospital of Buffalo Buffalo, NY · (716) 826-7000 HC Assay Urea Nitrogen, Quan - Pre-Dialysis Bun (Blood Urea Nitrogen) | $10.00 | $10.00 | $2.96–$10.00 | — | — source file |
| Mercy Hospital of Buffalo Buffalo, NY · (716) 826-7000 HC Assay Urea Nitrogen, Quan - Post-Dialysis Bun (Blood Urea Nitrogen) | $10.00 | $10.00 | $2.96–$10.00 | — | — source file |
| Sisters of Charity Hospital Buffalo, NY · (716) 862-1000 HC Assay Urea Nitrogen, Quan - POCT Urea (Bun) | $10.00 | $10.00 | $2.96–$10.00 | — | — source file |
| Niagara Falls Memorial Medical Center Niagara Falls, NY · (716) 278-4000 ASSAY OF UREA NITROGEN | $10.36 | $14.80 | $3.75–$5.38 | 30% | — source file |
| Erie County Medical Center Buffalo, NY · (716) 898-3936 UREA NITROGEN QUANTITATIVE | $16.83 | $39.63 | $2.96–$35.66 | 58% | Aug 25, 2026 source file |
| Erie County Medical Center Buffalo, NY · (716) 898-3936 BLOOD UREA NITROGEN NO CHARGE | $16.83 | $39.63 | $2.96–$35.66 | 58% | Aug 25, 2026 source file |
| Niagara Falls Memorial Medical Center Niagara Falls, NY · (716) 278-4000 UREA NITROGEN LEVEL TO ASSESS KIDNEY FUNCTION; QUANTITATIVE | $27.89 | $39.84 | $3.75–$5.38 | 30% | — source file |
| Kaleida Health Buffalo, NY · (716) 859-8620 Post Bun | $41.00 | $41.00 | — | — | Apr 1, 2026 source file |
| Kaleida Health Buffalo, NY · (716) 859-8620 Bun - Blood Urea Nitrogen | $41.00 | $41.00 | — | — | Apr 1, 2026 source file |
| Kaleida Health Buffalo, NY · (716) 859-8620 Urea Nitrogen Fluid | $41.00 | $41.00 | — | — | Apr 1, 2026 source file |
| Kaleida Health Buffalo, NY · (716) 859-8620 Dialysate For Npcr Cal | $41.00 | $41.00 | — | — | Apr 1, 2026 source file |
| Kaleida Health Buffalo, NY · (716) 859-8620 Bun Overnight Dialysate | $41.00 | $41.00 | — | — | Apr 1, 2026 source file |
| Kaleida Health Buffalo, NY · (716) 859-8620 Bun - Blood Urea Nitr Sys | $41.00 | $41.00 | — | — | Apr 1, 2026 source file |
| Kaleida Health Buffalo, NY · (716) 859-8620 Bun - Blood Urea Nitr Art | $41.00 | $41.00 | — | — | Apr 1, 2026 source file |
| Kaleida Health Buffalo, NY · (716) 859-8620 Bun Venous | $41.00 | $41.00 | — | — | Apr 1, 2026 source file |
| Kaleida Health Buffalo, NY · (716) 859-8620 Urea Nitrogen Serum Fibrp | $41.00 | $41.00 | — | — | Apr 1, 2026 source file |
| Roswell Park Cancer Institute Buffalo, NY Urea Nitrogen Quantitative | $53.09 | $53.09 | — | — | Apr 1, 2026 source file |
Outpatient: lowest $3.95, median $7.57, highest $53.09 — a 13.4× difference within the same market.
As an inpatient, the same code is billed by 7 facilities here, median $4.78. 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 5 of 6 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.