Renin test cost in St. Louis, MO
In St. Louis, MO-IL, 12 hospitals list a cash price for renin blood test: from $48.98 to $892.21, with a median of $112.50. The lowest listed price is at Touchette Regional Hospital — $63.52 less than the median here. Across Missouri, the median is $113.70 at 61 hospitals.
Cash prices at 12 facilities across 10 cities for code 84244, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 6, 2026 and Feb 9, 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 St. Louis, MO-IL.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Touchette Regional Hospital lowest Cahokia Heights, IL · (618) 332-3060 Renin source file | $48.98 | $79.00 | $3.00–$75.00 | 38% |
| Mercy Hospital South Saint Louis, MO · (314) 525-1000 Renin source file | $59.15 | $91.00 | $5.92–$91.00 | 35% |
| Mercy Hospital Jefferson Festus, MO · (636) 933-1000 Renin source file | $89.70 | $138.00 | $19.79–$49.48 | 35% |
| Mercy Hospital Washington Washington, MO · (636) 239-8000 Renin source file | $89.70 | $138.00 | $19.79–$37.19 | 35% |
| Carlinville Area Hospital Carlinville, IL · (217) 854-3141 RENIN source file | $101.50 | $145.00 | $52.20–$207.14 | 30% |
| Mercy Hospital St Louis Saint Louis, MO · (314) 251-6000 Renin source file | $112.45 | $173.00 | $19.79–$49.48 | 35% |
| Community Hospital of Staunton Staunton, IL · (618) 635-2200 RENIN File of Feb 9, 2026 · source file | $112.55 | $225.10 | $65.08–$204.84 | 50% |
| Anderson Hospital Maryville, IL · (618) 288-5711 RENIN File of Feb 6, 2026 · source file | $126.40 | $252.80 | $20.55–$227.52 | 50% |
| Mercy Hospital Lincoln Troy, MO · (636) 528-8551 Renin source file | $152.75 | $235.00 | $15.28–$235.00 | 35% |
| Shriners Childrens - St Louis Saint Louis, MO · (314) 432-3600 ASSAY OF RENIN source file | $168.60 | $168.60 | $8.64–$37.80 | — |
| Hshs Holy Family Hospital Greenville, IL · (618) 664-1230 HC RENIN-90 source file | $210.24 | $292.00 | $9.74–$292.00 | 28% |
| Gateway Regional Medical Center Granite City, IL · (618) 798-3000 RENIN source file | $892.21 | $1,487.01 | $1,487.01 | 40% |
Outpatient: lowest $48.98, median $112.50, highest $892.21 — a 18.2× difference within the same market.
As an inpatient, the same code is billed by 5 facilities here, median $126.40. 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 8 of 12 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 renin test measures an enzyme from the kidneys that controls blood pressure. It is ordered with aldosterone to look for an adrenal cause of high blood pressure.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.