BNP test cost in St. Louis, MO
In St. Louis, MO-IL, 11 hospitals list a cash price for BNP or NT-proBNP blood test (heart failure marker): from $82.55 to $303.12, with a median of $162.50. The lowest listed price is at Mercy Hospital St Louis and 1 other hospital — $79.95 less than the median here. Across Missouri, the median is $113.75 at 27 hospitals.
Cash prices at 11 facilities across 9 cities for code 83880, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between — and —.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in St. Louis, MO-IL.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Mercy Hospital St Louis lowest Saint Louis, MO Brain Natriuretic Peptide | $82.55 | $127.00 | $8.26–$127.00 | 35% | — source file |
| Mercy Hospital South lowest Saint Louis, MO · (314) 525-1000 Brain Natriuretic Peptide | $82.55 | $127.00 | $8.26–$127.00 | 35% | — source file |
| Mercy Hospital Jefferson Festus, MO Brain Natriuretic Peptide | $124.15 | $191.00 | $12.42–$191.00 | 35% | — source file |
| Mercy Hospital Washington Washington, MO Brain Natriuretic Peptide | $124.15 | $191.00 | $12.42–$171.90 | 35% | — source file |
| St Elizabeths Hospital of the Hospital Sisters of the Third Order of St Francis O'Fallon, IL HC BNP NATRIURETIC PEPTIDE | $154.80 | $215.00 | $19.79–$215.00 | 28% | — source file |
| Mercy Hospital Lincoln Troy, MO · (636) 528-8551 Brain Natriuretic Peptide | $162.50 | $250.00 | $16.25–$250.00 | 35% | — source file |
| Gateway Regional Medical Center Granite City, IL · (618) 798-3000 NATRIURETIC PEPTIDE | $167.73 | $279.55 | $279.55 | 40% | — source file |
| St Josephs Hospital Hospital Sisters Third Order of St Francis Breese, IL · (618) 526-4511 HC BNP NATRIURETIC PEPTIDE | $236.88 | $329.00 | $19.79–$329.00 | 28% | — source file |
| St Josephs Hospital of the Hospital Sisters of the Third Order of St Francis Highland, IL · (618) 651-2600 HC BNP NATRIURETIC PEPTIDE | $246.96 | $343.00 | $46.07–$343.00 | 28% | — source file |
| Shriners Childrens - St Louis Saint Louis, MO · (314) 432-3600 ASSAY OF NATRIURETIC PEPTIDE | $266.70 | $266.70 | $17.60–$49.08 | — | — source file |
| Hshs Holy Family Hospital Greenville, IL · (618) 664-1230 HC BNP NATRIURETIC PEPTIDE | $303.12 | $421.00 | $20.78–$421.00 | 28% | — source file |
Outpatient: lowest $82.55, median $162.50, highest $303.12 — a 3.7× difference within the same market.
As an inpatient, the same code is billed by 7 facilities here, median $236.88. 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 10 of 11 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
This code covers the natriuretic peptide tests, BNP and NT-proBNP. The heart releases these peptides when it is under strain, so the test helps tell heart failure from other causes of shortness of breath and tracks treatment.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.