Lab tests CPT 84520 Outpatient

BUN test cost in Lewiston, ME

In Lewiston-Auburn, ME, 1 hospital lists a cash price for blood urea nitrogen (BUN) test: from $28.12 to $28.12, with a median of $28.12. Across Maine, the median is $24.23 at 28 hospitals.

Cash prices at 1 facility for code 84520, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 22, 2026; the hospital files themselves were last updated between — and —.

Lowest$28.12St Mary's Regional Medical Center
Median$28.12half of hospitals charge less
Highest$28.12in this market
Difference1.0×highest vs lowest

Hospitals, cheapest first

HospitalCash priceList priceInsurers payOff list
St Mary's Regional Medical Center Lewiston, ME · (207) 777-8100 HC BUN source file $28.12 $74.00 — 62%
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More
Off list How much lower the cash price is than the list price.

Outpatient: lowest $28.12, median $28.12, highest $28.12.

As an inpatient, the same code is billed by 1 facility here, median $28.12. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.

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.

1 row held back from this comparison

It is priced below $1 or below a tenth of the national median for code 84520 ($34.29). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.

HospitalCash priceFile
Central Maine Medical Center Lewiston, MEHC ASSAY UREA NITROGEN, QUAN $3.00 file
File Link to the hospital's own price file.