BUN test cost in Portland, ME
In Portland-South Portland, ME, 6 hospitals list a cash price for blood urea nitrogen (BUN) test: from $8.32 to $90.80, with a median of $30.85. The lowest listed price is at Northern Light Mercy Hospital — $22.53 less than the median here. Across Maine, the median is $24.23 at 28 hospitals.
Cash prices at 6 facilities across 5 cities for code 84520, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Sep 9, 2025 and Apr 29, 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 Portland-South Portland, ME.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Northern Light Mercy Hospital lowest Portland, ME · (207) 879-3000 UREA NITROGEN QUAN | $8.32 | $32.00 | $17.09–$24.38 | 74% | — source file |
| Northern Light Mercy Hospital lowest Portland, ME · (207) 879-3000 UREA NITROGEN (BUN)-Q | $8.32 | $32.00 | $17.09–$24.38 | 74% | — source file |
| York Hospital York, ME · (207) 351-2478 W BUN (WELLS), QNT | $19.80 | $33.00 | — | 40% | — source file |
| Bridgton Hospital Bridgton, ME · (207) 647-6000 HC ASSAY UREA NITROGEN, QUAN | $22.00 | $72.81 | $3.95–$66.04 | 70% | Apr 29, 2026 source file |
| Southern Maine Medical Center Biddeford, ME · (207) 662-0111 HC ASSAY OF UREA NITROGEN QUANTITATIVE | $39.70 | $39.70 | $3.95–$37.32 | — | Sep 9, 2025 source file |
| York Hospital York, ME · (207) 351-2478 P-BUN | $43.80 | $73.00 | — | 40% | — source file |
| York Hospital York, ME · (207) 351-2478 BUN - BLOOD UREA NITROGEN, QNT | $43.80 | $73.00 | — | 40% | — source file |
| MaineHealth Maine Medical Center Portland, ME · (207) 662-0111 B* HC ASSAY OF UREA NITROGEN QUANTITATIVE | $87.50 | $87.50 | $3.95–$82.25 | — | Sep 9, 2025 source file |
| MaineHealth Mid Coast Hospital Brunswick, ME · (207) 729-0181 HC ASSAY OF UREA NITROGEN QUANTITATIVE | $90.80 | $90.80 | $3.95–$85.72 | — | Sep 9, 2025 source file |
Outpatient: lowest $8.32, median $30.85, highest $90.80 — a 10.9× difference within the same market.
As an inpatient, the same code is billed by 5 facilities here, median $39.70. 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 2 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 1 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
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.