Rapid flu test cost in Riverside, CA
In Riverside-San Bernardino-Ontario, CA, 18 hospitals list a cash price for rapid flu test (influenza antigen): from $8.19 to $185.00, with a median of $41.00. The lowest listed price is at Eisenhower Medical Center — $32.81 less than the median here. Across California, the median is $75.40 at 145 hospitals.
- The median here, $41.00, is 32% below the US median of $60.40.
- That is 2.5× Medicare's 2026 national rate for the same service ($16.55).
- Riverside, CA has the lowest median of 5 metro areas in California with at least 10 hospitals pricing this code.
- 4 of 18 hospitals list a cash price equal to their full list price, with no self-pay discount.
Cash prices at 18 facilities across 15 cities for code 87804, as an outpatient — the setting a self-pay patient normally buys. Collected Nov 1, 2026; the hospital files themselves were last updated between Jan 14, 2026 and Sep 30, 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 |
|---|---|---|---|---|
| Eisenhower Medical Center lowest Rancho Mirage, CA · (760) 340-3911 HC Influenza a&B,Direct Immunoassay File of Apr 2, 2026 · source file | $8.19 | $65.00 | $8.85–$212.74 | 87% |
| Desert Valley Hospital Victorville, CA · (760) 241-8000 IMMUNO OPTICAL INFLUENZA B+2 more lines at this price File of Sep 1, 2026 · source file | $16.00 | $82.75 | $7.08–$82.75 | 81% |
| Chino Valley Medical Center Chino, CA · (909) 627-6111 Hc Detect Agent,Immun,Dir Obs,Influenza File of Sep 1, 2026 · source file | $16.00 | $285.31 | $7.08–$285.31 | 94% |
| Montclair Hospital Medical Center Montclair, CA · (909) 625-8300 Hc Detect Agent,Immun,Dir Obs,Influenza File of Sep 1, 2026 · source file | $16.00 | $285.31 | $7.08–$285.31 | 94% |
| St Bernardine Medical Center San Bernardino, CA · (909) 883-8711 INFLUENZA IA OPTIC NONL File of Sep 30, 2026 · source file | $16.46 | $50.00 | $8.85–$50.00 | 67% |
| St Bernardine Medical Center San Bernardino, CA · (909) 883-8711 INFLUENZA IA AG OPTIC File of Sep 30, 2026 · source file | $17.78 | $54.00 | $8.85–$54.00 | 67% |
| Community Hospital of San Bernardino San Bernardino, CA · (909) 887-6333 INFLUENZA IA AG OPTIC File of Sep 30, 2026 · source file | $21.39 | $55.00 | $8.85–$55.00 | 61% |
| Palo Verde Hospital Blythe, CA · (760) 922-4115 Influenza A+B Ag, EIA LC File of Jul 1, 2026 · source file | $32.02 | $42.70 | — | 25% |
| Victor Valley Global Medical Center Victorville, CA · (760) 245-8691 INFLUENZA B IA DIR+1 more line at this price File of May 13, 2026 · source file | $41.00 | $41.00 | $8.85–$49.00 | — |
| Hemet Global Medical Center Hemet, CA · (951) 652-2811 INFLUENZA A IA DIR+1 more line at this price File of Jun 15, 2026 · source file | $41.00 | $41.00 | $8.85–$54.78 | — |
| Menifee Global Medical Center Menifee, CA · (951) 679-8888 INFLUENZA B IA DIR+1 more line at this price File of May 20, 2026 · source file | $41.00 | $41.00 | $8.85–$54.78 | — |
| Hemet Global Medical Center Hemet, CA · (951) 652-2811 LAB INFLUENZA A B SCRN IMM OPT OBSV File of Jun 15, 2026 · source file | $50.00 | $50.00 | $8.85–$54.78 | — |
| Menifee Global Medical Center Menifee, CA · (951) 679-8888 LAB INFLUENZA A B SCRN IMM OPT OBSV File of May 20, 2026 · source file | $50.00 | $50.00 | $8.85–$54.78 | — |
| St Mary Medical Center Apple Valley, CA · (760) 242-2311 HC IAADIADOO INFLUENZA CDM File of Apr 1, 2026 · source file | $57.60 | $120.00 | — | 52% |
| Mountains Community Hospital Lake Arrowhead, CA · (909) 336-3651 INFLUENZA A&B ANTIGEN DET File of Jan 14, 2026 · source file | $59.20 | $148.00 | $66.60–$125.80 | 60% |
| Kaiser Foundation Hospital - Fontana Fontana, CA · (909) 427-5000 IAADIADOO INFLUENZA File of Apr 1, 2026 · source file | $75.40 | $145.00 | $12.00–$35.00 | 48% |
| Kaiser Foundation Hospital - Riverside Riverside, CA · (951) 353-2000 IAADIADOO INFLUENZA File of Apr 1, 2026 · source file | $75.40 | $145.00 | $12.00–$35.00 | 48% |
| Kaiser Foundation Hospital - Moreno Valley Moreno Valley, CA · (951) 251-6530 IAADIADOO INFLUENZA File of Apr 1, 2026 · source file | $75.40 | $145.00 | $12.00–$35.00 | 48% |
| Kaiser Ontario Medical Center Campus Ontario, CA · (909) 427-5000 IAADIADOO INFLUENZA File of Apr 1, 2026 · source file | $75.40 | $145.00 | $12.00–$35.00 | 48% |
| Victor Valley Global Medical Center Victorville, CA · (760) 245-8691 VG-INFLUENZA A/B IA W/DIR OPT OBSV File of May 13, 2026 · source file | $98.00 | $98.00 | $8.85–$98.00 | — |
| Riverside University Medical Center Moreno Valley, CA · (951) 486-4000 HC Immunoassay Eia Visl Obs Influ+1 more line at this price File of Mar 30, 2026 · source file | $114.34 | $114.34 | $7.08–$114.34 | — |
| San Antonio Regional Hospital Upland, CA · (909) 985-2811 Detection test by immunoassay with direct visual observation for influenza virus File of Apr 2, 2026 · source file | $185.00 | $216.00 | $12.69–$396.90 | 14% |
Outpatient: lowest $8.19, median $41.00, highest $185.00 — a 22.6× difference within the same market.
As an inpatient, the same code is billed by 13 facilities here, median $41.00. 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 11 of 16 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 2 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 rapid flu test is, what the price covers and why prices differ: Rapid flu test explained.