Rapid flu test cost in Riverside, CA — inpatient
In Riverside-San Bernardino-Ontario, CA, 6 hospitals list a cash price for rapid flu test (influenza antigen) as an inpatient: from $32.02 to $114.34, with a median of $75.40. The lowest listed price is at Palo Verde Hospital — $43.38 less than the median here. Across California, the median is $75.40 at 72 hospitals.
Cash prices at 6 facilities across 5 cities for code 87804, 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 |
|---|---|---|---|---|---|
| Palo Verde Hospital lowest Blythe, CA · (760) 922-4115 Influenza A+B Ag, EIA LC | $32.02 | $42.70 | — | 25% | Jul 1, 2026 source file |
| St Mary Medical Center Apple Valley, CA · (760) 242-2311 HC IAADIADOO INFLUENZA CDM | $57.60 | $120.00 | — | 52% | Apr 1, 2026 source file |
| Kaiser Foundation Hospital - Moreno Valley Moreno Valley, CA · (951) 251-6530 IAADIADOO INFLUENZA | $75.40 | $145.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - Fontana Fontana, CA · (909) 427-5000 IAADIADOO INFLUENZA | $75.40 | $145.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - Riverside Riverside, CA · (951) 353-2000 IAADIADOO INFLUENZA | $75.40 | $145.00 | $12.00–$35.00 | 48% | — source file |
| Riverside University Medical Center Moreno Valley, CA · (951) 486-4000 HC Immunoassay Eia Visl Obs Influ | $114.34 | $114.34 | $7.08–$114.34 | — | — source file |
| Riverside University Medical Center Moreno Valley, CA · (951) 486-4000 HC Immunoassay Eia Visl Obs Influ | $114.34 | $114.34 | $7.08–$114.34 | — | — source file |
Inpatient: lowest $32.02, median $75.40, highest $114.34 — a 3.6× difference within the same market.
As an outpatient, the same code is billed by 10 facilities here, median $66.50 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 0 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
A rapid flu test checks a nose or throat swab for influenza within minutes. The code is billed once for each flu type tested, so a test for A and B may be billed twice.
What the price covers
The price usually covers the swab and the test for one flu type; tests for A and B may be billed twice.