BUN test cost in Topeka, KS
In Topeka, KS, 2 hospitals list a cash price for blood urea nitrogen (BUN) test: from $20.47 to $34.31, with a median of $27.39. The lowest listed price is at The University of Kansas Health System- St. Francis Campus — $6.92 less than the median here. Across Kansas, the median is $31.10 at 76 hospitals.
Cash prices at 2 facilities across 2 cities for code 84520, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Apr 23, 2026 and Apr 23, 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 Topeka, KS.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| The University of Kansas Health System- St. Francis Campus lowest Topeka, KS · (785) 295-8000 Urea nitrogen level to assess kidney function, quantitative | $20.47 | $68.25 | $3.87–$81.00 | 70% | — source file |
| Holton Community Hospital Holton, KS · (785) 364-2116 Urea nitrogen level to assess kidney function, quantitative | $34.31 | $45.75 | $8.39–$45.75 | 25% | Apr 23, 2026 source file |
Outpatient: lowest $20.47, median $27.39, highest $34.31 — a 1.7× difference within the same market.
Cash or insurance?
At 2 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
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.