H. pylori blood test cost in St. Louis, MO
In St. Louis, MO-IL, 9 hospitals list a cash price for H. pylori antibody blood test: from $34.01 to $133.25, with a median of $79.30. The lowest listed price is at Gateway Regional Medical Center — $45.29 less than the median here. Across Missouri, the median is $87.53 at 26 hospitals.
Cash prices at 9 facilities across 7 cities for code 86677, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 24, 2026 and Apr 24, 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 | File date |
|---|---|---|---|---|---|
| Gateway Regional Medical Center lowest Granite City, IL · (618) 798-3000 Q37695 H PYLORI AB Q | $34.01 | $56.69 | $56.69 | 40% | — source file |
| Ranken Jordan Home for Convalescent Crippled Children Hospital Maryland Heights, MO · (314) 872-6400 Helicobacter Pylori Antibody | $34.82 | $43.52 | — | 20% | Apr 24, 2026 source file |
| Mercy Hospital Jefferson Festus, MO Helicobacter Pylori Antibody | $52.00 | $80.00 | $5.20–$80.00 | 35% | — source file |
| St Josephs Hospital of the Hospital Sisters of the Third Order of St Francis Highland, IL · (618) 651-2600 HC H PYLORI AB | $75.60 | $105.00 | $18.83–$105.00 | 28% | — source file |
| Mercy Hospital South Saint Louis, MO · (314) 525-1000 Helicobacter Pylori Antibody | $79.30 | $122.00 | $15.17–$37.91 | 35% | — source file |
| Mercy Hospital St Louis Saint Louis, MO Helicobacter Pylori Antibody | $95.55 | $147.00 | $9.56–$147.00 | 35% | — source file |
| Shriners Childrens - St Louis Saint Louis, MO · (314) 432-3600 HELICOBACTER PYLORI ANTIBODY | $111.30 | $111.30 | $8.10–$24.94 | — | — source file |
| Mercy Hospital Lincoln Troy, MO · (636) 528-8551 Helicobacter Pylori Antibody | $125.45 | $193.00 | $16.85–$23.36 | 35% | — source file |
| Mercy Hospital Washington Washington, MO Helicobacter Pylori Antibody | $133.25 | $205.00 | $13.33–$184.50 | 35% | — source file |
Outpatient: lowest $34.01, median $79.30, highest $133.25 — a 3.9× difference within the same market.
As an inpatient, the same code is billed by 5 facilities here, median $58.39. 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 5 of 8 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 blood test looks for antibodies to H. pylori, the stomach bacteria behind most ulcers. It shows exposure but cannot tell a current infection from a past one.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.