Blood test, urea nitrogen (BUN, kidney)
Facility: St Mary's Hospital
Billing Code: 84520 (CPT)
This hospital's typical commercial price is $44 compared to the $14 fair price benchmark.
Balances commercial hospital prices against CMS clinical safety, infection control, and patient experience.
What each insurance company pays
Which insurers have negotiated a price with this hospital for this procedure — and which haven’t.
3 of 6 major insurers have a published price at this hospital
Crossed out = this hospital hasn’t published a negotiated price for that insurer for this procedure. It doesn’t necessarily mean they aren’t accepted — ask your insurer.
| Insurance company | Price range | vs. Medicare |
|---|---|---|
| UnitedHealthcaremajor | $48 | 1215% |
| Blue Cross Blue Shieldmajor | $15 - $58 | 380% |
| Aetnamajor | $48 - $54 | 1215% |
| GEHA | $56 | 1418% |
| + 4 smaller / regional plans | $48 - $57 |
Self-Pay How to get the cash price
Insurance Before you use insurance
Estimate your out-of-pocket cost
A rough estimate of what you’d pay with insurance (deductible + coinsurance) versus paying the cash price yourself.
Other Procedures at St Mary's Hospital
Compare: Blood test, urea nitrogen (BUN, kidney) at other ID hospitals
- Lost Rivers Medical Center · Arco $2
- Teton Valley Hospital · Driggs $3
- West Valley Medical Center · Caldwell $4
- Eastern Idaho Regional Medical Center · Idaho Falls $4
- Madison Memorial Hospital · Rexburg $4
- Kootenai Health · Coeur D'Alene $4
- Treasure Valley Hospital · Boise $4
- Mountain View Hospital · Idaho Falls $4
Insurance negotiated median for the same procedure, sorted lowest first.
Audit a Bill or Quote at St Mary's Hospital (Zero PHI Required)
Statutory 501(r) AGB Cap Limits Bill to $21
At 274% FPL (201%–400% FPL tier), 26 U.S.C. § 501(r)(5) caps FAP-eligible bills at Amounts Generally Billed (36.3% of gross = $21).
Self-Pay Cash Rate ($44) Beats Your Bill
St Mary's Hospital's published 45 CFR § 180 self-pay cash rate is $44 (vs. $16 commercial insurer median). Ask billing to reclassify the visit to prompt-pay self-pay if it beats your deductible.
Negotiate Toward $14 Fair BaseRate ($4 Medicare)
Your bill ($58) is $44 above the denoised Fair BaseRate ($14) and 14.5× the $4 Medicare rate.
How to Pay Less Nearby: Freestanding Centers, Insurer Leverage & Outpatient Savings
Verify the Raw Data: Official Hospital MRF, CMS Medicare.gov & Federal Filings
Safe-Harbor Data Corrections: Parsed directly from public 45 CFR § 180 hospital filings, CMS Care Compare, and CMS HCRIS cost reports. Hospital compliance officers may submit updated MRF URLs or rate tables for verification.