H. pylori stool test cost in Riverside, CA — inpatient
In Riverside-San Bernardino-Ontario, CA, 6 hospitals list a cash price for H. pylori stool antigen test as an inpatient: from $14.31 to $105.56, with a median of $87.58. The lowest listed price is at Riverside University Medical Center — $73.27 less than the median here. Across California, the median is $84.00 at 88 hospitals.
Cash prices at 6 facilities across 5 cities for code 87338, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Jul 1, 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 Riverside-San Bernardino-Ontario, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Riverside University Medical Center lowest Moreno Valley, CA · (951) 486-4000 HC Qu H.Pylori Ag Stool | $14.31 | $14.31 | $10.23–$17.76 | — | — source file |
| Riverside University Medical Center lowest Moreno Valley, CA · (951) 486-4000 HC Qu H.Pylori Ag Stool | $14.31 | $14.31 | $10.23–$17.76 | — | — source file |
| Palo Verde Hospital Blythe, CA · (760) 922-4115 Helicobacter pylori Stool Ag, EIA LC | $62.56 | $83.42 | — | 25% | Jul 1, 2026 source file |
| St Mary Medical Center Apple Valley, CA · (760) 242-2311 HC IAAD IA HPYLORI STOOL CDM | $69.60 | $145.00 | — | 52% | Apr 1, 2026 source file |
| Riverside University Medical Center Moreno Valley, CA · (951) 486-4000 HC Qu Helicobacter Pylori Stool Ag | $75.81 | $75.81 | $10.23–$75.81 | — | — source file |
| Riverside University Medical Center Moreno Valley, CA · (951) 486-4000 HC Qu Helicobacter Pylori Stool Ag | $75.81 | $75.81 | $10.23–$75.81 | — | — source file |
| Kaiser Foundation Hospital - Fontana Fontana, CA · (909) 427-5000 IAAD IA HPYLORI STOOL | $105.56 | $203.00 | $10.00–$30.00 | 48% | — source file |
| Kaiser Foundation Hospital - Riverside Riverside, CA · (951) 353-2000 IAAD IA HPYLORI STOOL | $105.56 | $203.00 | $10.00–$30.00 | 48% | — source file |
| Kaiser Foundation Hospital - Moreno Valley Moreno Valley, CA · (951) 251-6530 IAAD IA HPYLORI STOOL | $105.56 | $203.00 | $10.00–$30.00 | 48% | — source file |
Inpatient: lowest $14.31, median $87.58, highest $105.56 — a 7.4× difference within the same market.
As an outpatient, the same code is billed by 10 facilities here, median $66.08 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 1 of 4 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it 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 stool test finds H. pylori, the stomach bacteria behind most ulcers. It shows an active infection and is used both to diagnose it and to confirm a cure.
What the price covers
The price usually covers running the stool test; the collection kit is often included.